MfE Data Service :: tag:data.mfe.govt.nz,2008-10:feed:tables:category=301168:sort=rMinistry for the Environmenthttps://data.mfe.govt.nz//River water quality: Escherichia coli, state, 2016 - 2020tag:data.mfe.govt.nz,2022-07:layers:1096612022-08-11T21:41:41.237516+00:002022-07-18T01:12:26.176710+00:00
<a class="kxThumbnail" href="https://data.mfe.govt.nz/table/109661-river-water-quality-escherichia-coli-state-2016-2020/" title="Details for River water quality: Escherichia coli, state, 2016 - 2020"><img src="https://assets.koordinates.com/kx-dandelion-live2-public/thumbs/layers/109661/366625/small.png" alt="River water quality: Escherichia coli, state, 2016 - 2020 thumbnail"/></a><br />
<br /><strong>Updated with new data on 18 Jul 2022</strong><br />
<p>Adapted by Ministry for the Environment and Statistics New Zealand to provide for environmental reporting transparency. Dataset used to develop the "River water quality: Escherichia coli" indicator (available at <a href="https://www.stats.govt.nz/indicators/river-water-quality-escherichia-coli">www.stats.govt.nz/indicators/river-water-quality-e...</a>).</p>
<p>This dataset contains one parameter of water quality based on measurements made at monitored river sites:</p>
<ul>
<li>Escherichia coli</li>
</ul>
<p>Escherichia coli in river waters is one of five parameters that provide an overview of New Zealand’s river water quality and how it is changing over time.</p>
<p>This dataset includes:</p>
<ul>
<li>E. coli concentrations measured at monitoring sites for New Zealand’s river length for the period 2016–2020 </li>
<li>A comparison of measured E. coli concentrations at monitored sites with the proportion of human modified landcover in the upstream catchment area </li>
<li>predicted risk of Campylobacter infection, as shown by the median concentration, 95th percentile and percentage of results above 260 and 540 colony forming units per 100 millilitres (cfu/100 mL) compared to the National Objectives Framework (NOF) bands related to human contact</li>
</ul>
<p>More information on this dataset and how it relates to our environmental reporting indicators and topics can be found in the attached data quality pdf.</p>
<p>Summary report available at <a href="https://environment.govt.nz/publications/environment-aotearoa-2022/">environment.govt.nz/publications/environment-aotea...</a>.</p>
From: <a href="https://data.mfe.govt.nz/group/environmental-reporting/" title="Profile for Environmental Reporting">Environmental Reporting</a><br />
Added: 11 Aug 2022<br />
Updated: 18 Jul 2022<br />
River water quality: Escherichia coli, trends, 1991 - 2020tag:data.mfe.govt.nz,2022-07:layers:1096622022-08-11T21:41:18.318824+00:002022-07-18T01:16:10.018445+00:00
<a class="kxThumbnail" href="https://data.mfe.govt.nz/table/109662-river-water-quality-escherichia-coli-trends-1991-2020/" title="Details for River water quality: Escherichia coli, trends, 1991 - 2020"><img src="https://assets.koordinates.com/kx-dandelion-live2-public/thumbs/layers/109662/366626/small.png" alt="River water quality: Escherichia coli, trends, 1991 - 2020 thumbnail"/></a><br />
<br /><strong>Updated with new data on 18 Jul 2022</strong><br />
<p>Adapted by Ministry for the Environment and Statistics New Zealand to provide for environmental reporting transparency. Dataset used to develop the "River water quality: Escherichia coli" indicator (available at <a href="https://www.stats.govt.nz/indicators/river-water-quality-escherichia-coli">www.stats.govt.nz/indicators/river-water-quality-e...</a>).</p>
<p>This dataset contains one parameter of water quality based on measurements made at monitored river sites:</p>
<ul>
<li>Escherichia coli</li>
</ul>
<p>Escherichia coli in river waters is one of five parameters that provide an overview of New Zealand’s river water quality and how it is changing over time.</p>
<p>This dataset includes:</p>
<ul>
<li>trends in concentrations of <em>E. coli</em> based on measurements made at monitoring sites during the 10-year period from 2011 to 2020, the 20-year period from 2001 to 2020, and the 30-year period from 1991 to 2020.</li>
</ul>
<p>More information on this dataset and how it relates to our environmental reporting indicators and topics can be found in the attached data quality pdf.</p>
<p>Summary report available at <a href="https://environment.govt.nz/publications/environment-aotearoa-2022/">environment.govt.nz/publications/environment-aotea...</a>.</p>
From: <a href="https://data.mfe.govt.nz/group/environmental-reporting/" title="Profile for Environmental Reporting">Environmental Reporting</a><br />
Added: 11 Aug 2022<br />
Updated: 18 Jul 2022<br />
River water quality: Escherichia coli, flow adjusted trends, 1991 - 2020tag:data.mfe.govt.nz,2022-07:layers:1096642022-08-11T21:40:15.116617+00:002022-07-18T01:34:39.174767+00:00
<a class="kxThumbnail" href="https://data.mfe.govt.nz/table/109664-river-water-quality-escherichia-coli-flow-adjusted-trends-1991-2020/" title="Details for River water quality: Escherichia coli, flow adjusted trends, 1991 - 2020"><img src="https://assets.koordinates.com/kx-dandelion-live2-public/thumbs/layers/109664/366628/small.png" alt="River water quality: Escherichia coli, flow adjusted trends, 1991 - 2020 thumbnail"/></a><br />
<br /><strong>Updated with new data on 18 Jul 2022</strong><br />
<p>Adapted by Ministry for the Environment and Statistics New Zealand to provide for environmental reporting transparency. Dataset used to develop the "River water quality: Escherichia coli" indicator (available at <a href="https://www.stats.govt.nz/indicators/river-water-quality-escherichia-coli">www.stats.govt.nz/indicators/river-water-quality-e...</a>).</p>
<p>This dataset contains one parameter of water quality based on measurements made at monitored river sites:</p>
<ul>
<li>Escherichia coli</li>
</ul>
<p>Escherichia coli in river waters is one of five parameters that provide an overview of New Zealand’s river water quality and how it is changing over time.</p>
<p>This dataset includes:</p>
<ul>
<li>adjusted trends in concentrations of <em>E. coli</em> based on measurements made at monitoring sites during the 10-year period from 2011 to 2020, the 20-year period from 2001 to 2020, and the 30-year period from 1991 to 2020.</li>
</ul>
<p>More information on this dataset and how it relates to our environmental reporting indicators and topics can be found in the attached data quality pdf.</p>
<p>Summary report available at <a href="https://environment.govt.nz/publications/environment-aotearoa-2022/">environment.govt.nz/publications/environment-aotea...</a>.</p>
From: <a href="https://data.mfe.govt.nz/group/environmental-reporting/" title="Profile for Environmental Reporting">Environmental Reporting</a><br />
Added: 11 Aug 2022<br />
Updated: 18 Jul 2022<br />
River water quality: Macroinvertebrate community index, flow adjusted trends, 1991 - 2020tag:data.mfe.govt.nz,2022-07:layers:1096712022-08-11T21:33:12.358701+00:002022-07-18T02:04:21.653793+00:00
<a class="kxThumbnail" href="https://data.mfe.govt.nz/table/109671-river-water-quality-macroinvertebrate-community-index-flow-adjusted-trends-1991-2020/" title="Details for River water quality: Macroinvertebrate community index, flow adjusted trends, 1991 - 2020"><img src="https://assets.koordinates.com/kx-dandelion-live2-public/thumbs/layers/109671/366636/small.png" alt="River water quality: Macroinvertebrate community index, flow adjusted trends, 1991 - 2020 thumbnail"/></a><br />
<br /><strong>Updated with new data on 18 Jul 2022</strong><br />
<p>Adapted by Ministry for the Environment and Statistics New Zealand to provide for environmental reporting transparency. Dataset used to develop the "River water quality: macroinvertebrate community index" indicator (available at <a href="https://www.stats.govt.nz/indicators/river-water-quality-macroinvertebrate-community-index">www.stats.govt.nz/indicators/river-water-quality-m...</a>).</p>
<p>Benthic macroinvertebrates are small animals without backbones (for example, insects and worms). They live on and under submerged logs, rocks, and aquatic plants on the beds of rivers and streams during some part of their life cycle. Macroinvertebrates play a central role in stream ecosystems by feeding on periphyton (algae), macrophytes (aquatic plants), dead leaves and wood, or on each other. In turn, they are an important food source for fish and birds.</p>
<p>The macroinvertebrate community index (MCI) is used as an indicator of water quality and overall stream health. It is one of five parameters that provide an overview of New Zealand’s River water quality and how it is changing over time. This data shows:</p>
<ul>
<li>trends in median MCI scores for the 10-year period from 2011 to 2020, the 20-year period from 2001 to 2020, and the 30-year period from 1991 to 2020.</li>
</ul>
<p>More information on this dataset and how it relates to our environmental reporting indicators and topics can be found in the attached data quality pdf. Summary report available at<a href="https://environment.govt.nz/publications/environment-aotearoa-2022/">environment.govt.nz/publications/environment-aotea...</a> .</p>
From: <a href="https://data.mfe.govt.nz/group/environmental-reporting/" title="Profile for Environmental Reporting">Environmental Reporting</a><br />
Added: 11 Aug 2022<br />
Updated: 18 Jul 2022<br />
River water quality: Macroinvertebrate community index, state, 2016 - 2020tag:data.mfe.govt.nz,2022-07:layers:1096662022-08-11T21:39:27.868784+00:002022-07-18T01:42:17.592115+00:00
<a class="kxThumbnail" href="https://data.mfe.govt.nz/table/109666-river-water-quality-macroinvertebrate-community-index-state-2016-2020/" title="Details for River water quality: Macroinvertebrate community index, state, 2016 - 2020"><img src="https://assets.koordinates.com/kx-dandelion-live2-public/thumbs/layers/109666/366630/small.png" alt="River water quality: Macroinvertebrate community index, state, 2016 - 2020 thumbnail"/></a><br />
<br /><strong>Updated with new data on 18 Jul 2022</strong><br />
<p>Adapted by Ministry for the Environment and Statistics New Zealand to provide for environmental reporting transparency. Dataset used to develop the "River water quality: macroinvertebrate community index" indicator (available at <a href="https://www.stats.govt.nz/indicators/river-water-quality-macroinvertebrate-community-index">www.stats.govt.nz/indicators/river-water-quality-m...</a>).</p>
<p>Benthic macroinvertebrates are small animals without backbones (for example, insects and worms). They live on and under submerged logs, rocks, and aquatic plants on the beds of rivers and streams during some part of their life cycle. Macroinvertebrates play a central role in stream ecosystems by feeding on periphyton (algae), macrophytes (aquatic plants), dead leaves and wood, or on each other. In turn, they are an important food source for fish and birds.</p>
<p>The macroinvertebrate community index (MCI) is used as an indicator of water quality and overall stream health. It is one of five parameters that provide an overview of New Zealand’s river water quality and how it is changing over time. This data shows:</p>
<ul>
<li>MCI scores as measured median values at monitored sites for the period 2016–2020 </li>
<li>how these compare to the macroinvertebrates National Objectives Framework (NOF) bands related to ecosystem health.</li>
</ul>
<p>More information on this dataset and how it relates to our environmental reporting indicators and topics can be found in the attached data quality pdf. Summary report available at <a href="https://environment.govt.nz/publications/environment-aotearoa-2022/">environment.govt.nz/publications/environment-aotea...</a>.</p>
From: <a href="https://data.mfe.govt.nz/group/environmental-reporting/" title="Profile for Environmental Reporting">Environmental Reporting</a><br />
Added: 11 Aug 2022<br />
Updated: 18 Jul 2022<br />
River water quality: Macroinvertebrate community index, trends, 1991 - 2020tag:data.mfe.govt.nz,2022-07:layers:1096692022-08-11T21:38:22.753051+00:002022-07-18T01:47:44.763334+00:00
<a class="kxThumbnail" href="https://data.mfe.govt.nz/table/109669-river-water-quality-macroinvertebrate-community-index-trends-1991-2020/" title="Details for River water quality: Macroinvertebrate community index, trends, 1991 - 2020"><img src="https://assets.koordinates.com/kx-dandelion-live2-public/thumbs/layers/109669/366633/small.png" alt="River water quality: Macroinvertebrate community index, trends, 1991 - 2020 thumbnail"/></a><br />
<br /><strong>Updated with new data on 18 Jul 2022</strong><br />
<p>Adapted by Ministry for the Environment and Statistics New Zealand to provide for environmental reporting transparency. Dataset used to develop the "River water quality: macroinvertebrate community index" indicator (available at <a href="https://www.stats.govt.nz/indicators/river-water-quality-macroinvertebrate-community-index">www.stats.govt.nz/indicators/river-water-quality-m...</a>).</p>
<p>Benthic macroinvertebrates are small animals without backbones (for example, insects and worms). They live on and under submerged logs, rocks, and aquatic plants on the beds of rivers and streams during some part of their life cycle. Macroinvertebrates play a central role in stream ecosystems by feeding on periphyton (algae), macrophytes (aquatic plants), dead leaves and wood, or on each other. In turn, they are an important food source for fish and birds.</p>
<p>The macroinvertebrate community index (MCI) is used as an indicator of water quality and overall stream health. It is one of five parameters that provide an overview of New Zealand’s River water quality and how it is changing over time. This data shows</p>
<ul>
<li>trends in median MCI scores for the 10-year period from 2011 to 2020, the 20-year period from 2001 to 2020, and the 30-year period from 1991 to 2020.</li>
</ul>
<p>More information on this dataset and how it relates to our environmental reporting indicators and topics can be found in the attached data quality pdf. Summary report available at <a href="https://environment.govt.nz/publications/environment-aotearoa-2022/">environment.govt.nz/publications/environment-aotea...</a>.</p>
From: <a href="https://data.mfe.govt.nz/group/environmental-reporting/" title="Profile for Environmental Reporting">Environmental Reporting</a><br />
Added: 11 Aug 2022<br />
Updated: 18 Jul 2022<br />
River water quality: Clarity and turbidity, trends, 1991 - 2020tag:data.mfe.govt.nz,2022-07:layers:1096602022-08-11T21:42:02.104968+00:002022-07-18T01:11:56.706801+00:00
<a class="kxThumbnail" href="https://data.mfe.govt.nz/table/109660-river-water-quality-clarity-and-turbidity-trends-1991-2020/" title="Details for River water quality: Clarity and turbidity, trends, 1991 - 2020"><img src="https://assets.koordinates.com/kx-dandelion-live2-public/thumbs/layers/109660/366624/small.png" alt="River water quality: Clarity and turbidity, trends, 1991 - 2020 thumbnail"/></a><br />
<br /><strong>Updated with new data on 18 Jul 2022</strong><br />
<p>Adapted by Ministry for the Environment and Statistics New Zealand to provide for environmental reporting transparency. Dataset used to develop the "River water quality: clarity and turbidity" indicator (available at <a href="https://www.stats.govt.nz/indicators/river-water-quality-clarity-and-turbidity">www.stats.govt.nz/indicators/river-water-quality-c...</a>).</p>
<p>This dataset contains two attriutes of water quality based on measurements made at monitored river sites:</p>
<ul>
<li>Clarity </li>
<li>Turbidity</li>
</ul>
<p>Clarity and turbidity in river waters is one of five parameters that provide an overview of New Zealand’s river water quality and how it is changing over time.</p>
<p>This dataset includes:</p>
<ul>
<li>trends in clarity and turbidity based on measurements made at monitoring sites during the 10-year period from 2011 to 2020, the 20-year period from 2001 to 2020, and the 30-year period from 1991 to 2020.</li>
</ul>
<p>More information on this dataset and how it relates to our environmental reporting indicators and topics can be found in the attached data quality pdf.</p>
<p>Summary report available at <a href="https://environment.govt.nz/publications/environment-aotearoa-2022/">environment.govt.nz/publications/environment-aotea...</a>.</p>
From: <a href="https://data.mfe.govt.nz/group/environmental-reporting/" title="Profile for Environmental Reporting">Environmental Reporting</a><br />
Added: 11 Aug 2022<br />
Updated: 18 Jul 2022<br />
River water quality: Clarity and turbidity, state, 2016 - 2020tag:data.mfe.govt.nz,2022-07:layers:1096652022-08-11T21:39:52.702017+00:002022-07-18T01:39:58.674353+00:00
<a class="kxThumbnail" href="https://data.mfe.govt.nz/table/109665-river-water-quality-clarity-and-turbidity-state-2016-2020/" title="Details for River water quality: Clarity and turbidity, state, 2016 - 2020"><img src="https://assets.koordinates.com/kx-dandelion-live2-public/thumbs/layers/109665/366629/small.png" alt="River water quality: Clarity and turbidity, state, 2016 - 2020 thumbnail"/></a><br />
<br /><strong>Updated with new data on 18 Jul 2022</strong><br />
<p>Adapted by Ministry for the Environment and Statistics New Zealand to provide for environmental reporting transparency. Dataset used to develop the "River water quality: clarity and turbidity" indicator (available at <a href="https://www.stats.govt.nz/indicators/river-water-quality-clarity-and-turbidity">www.stats.govt.nz/indicators/river-water-quality-c...</a>).</p>
<p>This dataset contains two parameters of water quality based on measurements made at monitored river sites:</p>
<ul>
<li>Clarity </li>
<li>Turbidity</li>
</ul>
<p>Clarity and turbidity in river waters is one of five parameters that provide an overview of New Zealand’s river water quality and how it is changing over time.</p>
<p>This dataset includes:</p>
<ul>
<li>clarity and turbidity as measured median values at monitored sites for New Zealand’s river length for the period 2016–2020 </li>
<li>how these values compare to the default guideline values in the Australian and New Zealand guidelines for fresh and marine water quality (ANZG, 2018), which indicates the risk of environmental impairment </li>
<li>measured visual clarity median values compared with the National Objectives Framework (NOF) bands related to ecosystem health (MfE, 2020)</li>
</ul>
<p>More information on this dataset and how it relates to our environmental reporting indicators and topics can be found in the attached data quality pdf.</p>
<p>Summary report available at <a href="https://environment.govt.nz/publications/environment-aotearoa-2022/">environment.govt.nz/publications/environment-aotea...</a>.</p>
From: <a href="https://data.mfe.govt.nz/group/environmental-reporting/" title="Profile for Environmental Reporting">Environmental Reporting</a><br />
Added: 11 Aug 2022<br />
Updated: 18 Jul 2022<br />
River water quality: Clarity and turbidity, flow adjusted trends, 1991 - 2020tag:data.mfe.govt.nz,2022-07:layers:1096632022-08-11T21:40:46.516322+00:002022-07-18T01:17:45.371243+00:00
<a class="kxThumbnail" href="https://data.mfe.govt.nz/table/109663-river-water-quality-clarity-and-turbidity-flow-adjusted-trends-1991-2020/" title="Details for River water quality: Clarity and turbidity, flow adjusted trends, 1991 - 2020"><img src="https://assets.koordinates.com/kx-dandelion-live2-public/thumbs/layers/109663/366627/small.png" alt="River water quality: Clarity and turbidity, flow adjusted trends, 1991 - 2020 thumbnail"/></a><br />
<br /><strong>Updated with new data on 18 Jul 2022</strong><br />
<p>Adapted by Ministry for the Environment and Statistics New Zealand to provide for environmental reporting transparency. Dataset used to develop the "River water quality: clarity and turbidity" indicator (available at <a href="https://www.stats.govt.nz/indicators/river-water-quality-clarity-and-turbidity">www.stats.govt.nz/indicators/river-water-quality-c...</a>).</p>
<p>This dataset contains two attributes of water quality based on measurements made at monitored river sites:</p>
<ul>
<li>Clarity </li>
<li>Turbidity</li>
</ul>
<p>Clarity and turbidity in river waters is one of five parameters that provide an overview of New Zealand’s river water quality and how it is changing over time.</p>
<p>This dataset includes:</p>
<ul>
<li>Adjusted trends in clarity and turbidity based on measurements made at monitoring sites during the 10-year period from 2011 to 2020, the 20-year period from 2001 to 2020, and the 30-year period from 1991 to 2020.</li>
</ul>
<p>More information on this dataset and how it relates to our environmental reporting indicators and topics can be found in the attached data quality pdf.</p>
<p>Summary report available at <a href="https://environment.govt.nz/publications/environment-aotearoa-2022/">environment.govt.nz/publications/environment-aotea...</a>.</p>
From: <a href="https://data.mfe.govt.nz/group/environmental-reporting/" title="Profile for Environmental Reporting">Environmental Reporting</a><br />
Added: 11 Aug 2022<br />
Updated: 18 Jul 2022<br />
River water quality: Nitrogen, trends, 1991 - 2020tag:data.mfe.govt.nz,2022-07:layers:1096592022-08-11T21:42:19.635698+00:002022-07-18T00:07:11.291336+00:00
<a class="kxThumbnail" href="https://data.mfe.govt.nz/table/109659-river-water-quality-nitrogen-trends-1991-2020/" title="Details for River water quality: Nitrogen, trends, 1991 - 2020"><img src="https://assets.koordinates.com/kx-dandelion-live2-public/thumbs/layers/109659/366623/small.png" alt="River water quality: Nitrogen, trends, 1991 - 2020 thumbnail"/></a><br />
<br /><strong>Updated with new data on 18 Jul 2022</strong><br />
<p>Adapted by Ministry for the Environment and Statistics New Zealand to provide for environmental reporting transparency. Dataset used to develop the “River water quality: Nitrogen” indicator, (available at <a href="https://www.stats.govt.nz/indicators/river-water-quality-nitrogen">www.stats.govt.nz/indicators/river-water-quality-n...</a>).</p>
<p>Nitrogen in river waters is one of five parameters that provide an overview of New Zealand’s River water quality and how it is changing over time. Nitrogen is an essential nutrient for plants and algae. Some nutrient supply is a natural component of healthy rivers, but agricultural and urban land use, and infrastructure such as wastewater treatment plants, can add more nitrogen to waterways. Too much nitrogen can lead to excessive growth of algae, which can deteriorate river habitats. In very high concentrations, some forms of nitrogen, including nitrate-nitrogen and ammoniacal nitrogen, can be toxic to aquatic life.</p>
<p>This dataset shows:</p>
<ul>
<li>trends in concentrations of total nitrogen, nitrate-nitrite-nitrogen, and ammoniacal nitrogen based on measurements made at monitoring sites during the 10-year period from 2011 to 2020, the 20-year period from 2001 to 2020, and the 30-year period from 1991 to 2020.</li>
</ul>
<p>More information on this dataset and how it relates to our environmental reporting indicators and topics can be found in the attached data quality pdf.</p>
<p>Summary report available at <a href="https://environment.govt.nz/publications/environment-aotearoa-2022/">environment.govt.nz/publications/environment-aotea...</a>.</p>
From: <a href="https://data.mfe.govt.nz/group/environmental-reporting/" title="Profile for Environmental Reporting">Environmental Reporting</a><br />
Added: 11 Aug 2022<br />
Updated: 18 Jul 2022<br />
River water quality: Nitrogen, flow adjusted trends, 1991 - 2020tag:data.mfe.govt.nz,2022-07:layers:1096572022-08-11T21:42:44.787631+00:002022-07-17T23:45:48.474680+00:00
<a class="kxThumbnail" href="https://data.mfe.govt.nz/table/109657-river-water-quality-nitrogen-flow-adjusted-trends-1991-2020/" title="Details for River water quality: Nitrogen, flow adjusted trends, 1991 - 2020"><img src="https://assets.koordinates.com/kx-dandelion-live2-public/thumbs/layers/109657/366621/small.png" alt="River water quality: Nitrogen, flow adjusted trends, 1991 - 2020 thumbnail"/></a><br />
<br /><strong>Updated with new data on 17 Jul 2022</strong><br />
<p>Adapted by Ministry for the Environment and Statistics New Zealand to provide for environmental reporting transparency. Dataset used to develop the “River water quality: Nitrogen” indicator, (available at <a href="https://www.stats.govt.nz/indicators/river-water-quality-nitrogen">www.stats.govt.nz/indicators/river-water-quality-n...</a>).</p>
<p>Nitrogen in river waters is one of five parameters that provide an overview of New Zealand’s river water quality and how it is changing over time. Nitrogen is an essential nutrient for plants and algae. Some nutrient supply is a natural component of healthy rivers, but agricultural and urban land use, and infrastructure such as wastewater treatment plants, can add more nitrogen to waterways. Too much nitrogen can lead to excessive growth of algae, which can deteriorate river habitats. In very high concentrations, some forms of nitrogen, including nitrate-nitrogen and ammoniacal nitrogen, can be toxic to aquatic life.</p>
<p>This dataset shows:</p>
<ul>
<li>trends in concentrations of total nitrogen, nitrate-nitrite-nitrogen, and ammoniacal nitrogen based on measurements made at monitoring sites during the 10-year period from 2011 to 2020, the 20-year period from 2001 to 2020, and the 30-year period from 1991 to 2020.</li>
</ul>
<p>More information on this dataset and how it relates to our environmental reporting indicators and topics can be found in the attached data quality pdf.</p>
<p>Summary report available at <a href="https://environment.govt.nz/publications/environment-aotearoa-2022/">environment.govt.nz/publications/environment-aotea...</a>.</p>
From: <a href="https://data.mfe.govt.nz/group/environmental-reporting/" title="Profile for Environmental Reporting">Environmental Reporting</a><br />
Added: 11 Aug 2022<br />
Updated: 17 Jul 2022<br />
River water quality: Nitrogen, state, 2016 - 2020tag:data.mfe.govt.nz,2022-07:layers:1096562022-08-11T21:43:05.170911+00:002022-07-17T23:42:40.871740+00:00
<a class="kxThumbnail" href="https://data.mfe.govt.nz/table/109656-river-water-quality-nitrogen-state-2016-2020/" title="Details for River water quality: Nitrogen, state, 2016 - 2020"><img src="https://assets.koordinates.com/kx-dandelion-live2-public/thumbs/layers/109656/366620/small.png" alt="River water quality: Nitrogen, state, 2016 - 2020 thumbnail"/></a><br />
<br /><strong>Updated with new data on 17 Jul 2022</strong><br />
<p>Adapted by Ministry for the Environment and Statistics New Zealand to provide for environmental reporting transparency. Dataset used to develop the “River water quality: Nitrogen” indicator, (available at <a href="https://www.stats.govt.nz/indicators/river-water-quality-nitrogen">www.stats.govt.nz/indicators/river-water-quality-n...</a>).</p>
<p>Nitrogen in river waters is one of five parameters that provide an overview of New Zealand’s River water quality and how it is changing over time. Nitrogen is an essential nutrient for plants and algae. Some nutrient supply is a natural component of healthy rivers, but agricultural and urban land use, and infrastructure such as wastewater treatment plants, can add more nitrogen to waterways. Too much nitrogen can lead to excessive growth of algae, which can deteriorate river habitats. In very high concentrations, some forms of nitrogen, including nitrate-nitrogen and ammoniacal nitrogen, can be toxic to aquatic life.</p>
<p>This dataset shows:</p>
<ul>
<li>concentrations of total nitrogen (TN), nitrate-nitrite-nitrogen (NNN) and ammoniacal nitrogen (NH4N) measured at monitored sites, expressed as percentiles for the period 2016–2020 </li>
<li>a comparison of measured nitrate-nitrite-nitrogen and ammoniacal nitrogen concentrations at monitored sites with the proportion of human modified landcover in the upstream catchment area </li>
<li>how measured median values compare to the default guideline values in the Australian and New Zealand guidelines for fresh and marine water quality (ANZG, 2018), which indicates the risk of environmental impairment </li>
<li>toxicity to aquatic species, as defined by the National Objectives Framework (NOF) bands related to ecosystem health (MfE, 2020)</li>
</ul>
<p>More information on this dataset and how it relates to our environmental reporting indicators and topics can be found in the attached data quality pdf.</p>
<p>Summary report available at <a href="https://environment.govt.nz/publications/environment-aotearoa-2022/">environment.govt.nz/publications/environment-aotea...</a>.</p>
From: <a href="https://data.mfe.govt.nz/group/environmental-reporting/" title="Profile for Environmental Reporting">Environmental Reporting</a><br />
Added: 11 Aug 2022<br />
Updated: 17 Jul 2022<br />
River water quality: Phosphorus, trends, 1991 - 2020tag:data.mfe.govt.nz,2022-07:layers:1096552022-08-11T21:43:43.528478+00:002022-07-17T23:38:33.266999+00:00
<a class="kxThumbnail" href="https://data.mfe.govt.nz/table/109655-river-water-quality-phosphorus-trends-1991-2020/" title="Details for River water quality: Phosphorus, trends, 1991 - 2020"><img src="https://assets.koordinates.com/kx-dandelion-live2-public/thumbs/layers/109655/366619/small.png" alt="River water quality: Phosphorus, trends, 1991 - 2020 thumbnail"/></a><br />
<br /><strong>Updated with new data on 17 Jul 2022</strong><br />
<p>Adapted by Ministry for the Environment and Statistics New Zealand to provide for environmental reporting transparency. Dataset used to develop the "River water quality: phosphorus" indicator (available at <a href="https://www.stats.govt.nz/indicators/river-water-quality-phosphorus">www.stats.govt.nz/indicators/river-water-quality-p...</a>).</p>
<p>Phosphorus in river waters is one of five parameters that provide an overview of New Zealand’s river water quality and how it is changing over time. Phosphorus is an essential nutrient for plants and is a natural component of healthy rivers. Agricultural and urban land use, and infrastructure such as wastewater treatments plants, can add more phosphorus to waterways, which can increase algae growth and biomass. This in turn causes deterioration of river habitats.</p>
<p>This dataset includes:</p>
<ul>
<li>trends in concentrations of total phosphorus and dissolved reactive phosphorus based on measurements made at monitoring sites during the 10-year period from 2011 to 2020, the 20-year period from 2001 to 2020, and the 30-year period from 1991 to 2020.</li>
</ul>
<p>More information on this dataset and how it relates to our environmental reporting indicators and topics can be found in the attached data quality pdf. Summary report available at <a href="https://environment.govt.nz/publications/environment-aotearoa-2022/">environment.govt.nz/publications/environment-aotea...</a>.</p>
From: <a href="https://data.mfe.govt.nz/group/environmental-reporting/" title="Profile for Environmental Reporting">Environmental Reporting</a><br />
Added: 11 Aug 2022<br />
Updated: 17 Jul 2022<br />
River water quality: Phosphorus, flow adjusted trends, 1991 - 2020tag:data.mfe.govt.nz,2022-07:layers:1096542022-08-11T21:44:22.501386+00:002022-07-17T23:33:33.231906+00:00
<a class="kxThumbnail" href="https://data.mfe.govt.nz/table/109654-river-water-quality-phosphorus-flow-adjusted-trends-1991-2020/" title="Details for River water quality: Phosphorus, flow adjusted trends, 1991 - 2020"><img src="https://assets.koordinates.com/kx-dandelion-live2-public/thumbs/layers/109654/366618/small.png" alt="River water quality: Phosphorus, flow adjusted trends, 1991 - 2020 thumbnail"/></a><br />
<br /><strong>Updated with new data on 17 Jul 2022</strong><br />
<p><strong>About</strong></p>
<p>Adapted by Ministry for the Environment and Statistics New Zealand to provide for environmental reporting transparency. Dataset used to develop the "River water quality: phosphorus" indicator (available at <a href="https://www.stats.govt.nz/indicators/river-water-quality-phosphorus">www.stats.govt.nz/indicators/river-water-quality-p...</a>).</p>
<p>Phosphorus in river waters is one of five parameters that provide an overview of New Zealand’s river water quality and how it is changing over time. Phosphorus is an essential nutrient for plants and is a natural component of healthy rivers. Agricultural and urban land use, and infrastructure such as wastewater treatments plants, can add more phosphorus to waterways, which can increase algae growth and biomass. This in turn causes deterioration of river habitats.</p>
<p>This dataset includes:</p>
<ul>
<li>trends in concentrations of total phosphorus and dissolved reactive phosphorus based on measurements made at monitoring sites during the 10-year period from 2011 to 2020, the 20-year period from 2001 to 2020, and the 30-year period from 1991 to 2020.</li>
</ul>
<p>More information on this dataset and how it relates to our environmental reporting indicators and topics can be found in the attached data quality pdf. Summary report available at <a href="https://environment.govt.nz/publications/environment-aotearoa-2022/">environment.govt.nz/publications/environment-aotea...</a>.</p>
From: <a href="https://data.mfe.govt.nz/group/environmental-reporting/" title="Profile for Environmental Reporting">Environmental Reporting</a><br />
Added: 11 Aug 2022<br />
Updated: 17 Jul 2022<br />
River water quality: Phosphorus, state, 2016 - 2020tag:data.mfe.govt.nz,2022-07:layers:1096532022-08-11T21:44:41.172972+00:002022-07-17T23:30:37.851169+00:00
<a class="kxThumbnail" href="https://data.mfe.govt.nz/table/109653-river-water-quality-phosphorus-state-2016-2020/" title="Details for River water quality: Phosphorus, state, 2016 - 2020"><img src="https://assets.koordinates.com/kx-dandelion-live2-public/thumbs/layers/109653/366617/small.png" alt="River water quality: Phosphorus, state, 2016 - 2020 thumbnail"/></a><br />
<br /><strong>Updated with new data on 17 Jul 2022</strong><br />
<p>Adapted by Ministry for the Environment and Statistics New Zealand to provide for environmental reporting transparency. Dataset used to develop the "River water quality: phosphorus" indicator (available at <a href="https://www.stats.govt.nz/indicators/river-water-quality-phosphorus">www.stats.govt.nz/indicators/river-water-quality-p...</a>).</p>
<p>Phosphorus in river waters is one of five parameters that provide an overview of New Zealand’s river water quality and how it is changing over time. Phosphorus is an essential nutrient for plants and is a natural component of healthy rivers. Agricultural and urban land use, and infrastructure such as wastewater treatments plants, can add more phosphorus to waterways, which can increase algae growth and biomass. This in turn causes deterioration of river habitats.</p>
<p>This dataset includes:</p>
<ul>
<li>concentrations of total phosphorus (TP) and dissolved reactive phosphorus (DRP) measured at monitored sites, expressed as percentiles for the period of 2016–2020 </li>
<li>a comparison of measured total phosphorus and dissolved reactive phosphorus concentrations at monitored sites with the proportion of human modified landcover in the upstream catchment area </li>
<li>how measured median total phosphorus and dissolved reactive phosphorus concentrations compare to the default guideline values in the Australian and New Zealand guidelines for fresh and marine water quality (ANZG, 2018), which indicates the risk of environmental impairment </li>
<li>measured dissolved reactive phosphorus concentrations compared to the National Objectives Framework (NOF) bands related to ecosystem health (MfE, 2020)</li>
</ul>
<p>More information on this dataset and how it relates to our environmental reporting indicators and topics can be found in the attached data quality pdf. Summary report available at <a href="https://environment.govt.nz/publications/environment-aotearoa-2022/">environment.govt.nz/publications/environment-aotea...</a>.</p>
From: <a href="https://data.mfe.govt.nz/group/environmental-reporting/" title="Profile for Environmental Reporting">Environmental Reporting</a><br />
Added: 11 Aug 2022<br />
Updated: 17 Jul 2022<br />
NZ Freshwater Nutrient and Biomass Measurements for Periphyton 2012 - 2020tag:data.mfe.govt.nz,2022-05:layers:1078682022-05-25T21:19:55.189595+00:002022-05-25T21:18:42.740799+00:00
<a class="kxThumbnail" href="https://data.mfe.govt.nz/table/107868-nz-freshwater-nutrient-and-biomass-measurements-for-periphyton-2012-2020/" title="Details for NZ Freshwater Nutrient and Biomass Measurements for Periphyton 2012 - 2020"><img src="https://assets.koordinates.com/kx-dandelion-live2-public/thumbs/layers/107868/362852/small.png" alt="NZ Freshwater Nutrient and Biomass Measurements for Periphyton 2012 - 2020 thumbnail"/></a><br />
<br /><strong>Updated with new data on 25 May 2022</strong><br />
<p>NZ regional council freshwater nutrient and biomass measurements 2012-2020.</p>
<p></p>
<p>Used to derive nitrogen and phosphorus concentrations and exceedance criteria for managing periphyton in fresh water.</p>
<p></p>
<p>Creative Commons 4.0 International by Ministry for the Environment and Statistics New Zealand</p>
<p></p>
<p>Variables:</p>
<ul>
<li>Site (the number of the data point itself) </li>
<li>RC (Regional Council that collected the measurement) </li>
<li>RCSiteID (the identifier used by that specific council) </li>
<li>SiteName (the Site where the measurement was collected) </li>
<li>DateChla (date the chlorophyll-a measurement was collected) </li>
<li>Year (Year of collection) </li>
<li>Month (Month of collection) </li>
<li>Chla ( mg chlorophyll-a per square meter) </li>
<li>NOxppb (Nitrous oxide parts per billion) </li>
<li>NH4ppb (Ammonia parts per billion) </li>
<li>DRPppb (Dissolved Reactive Phosphorus parts per billion) </li>
<li>TNppb (Total Nitrogen parts per billion) </li>
<li>TPppb (Total Phosphorus parts per billion) </li>
<li>DINppb (Dissolved Inorganic Nitrogen parts per billion) </li>
<li>EC (Electrical Conductivity) </li>
<li>pH (acidity/basicness of the water at the sample location) </li>
<li>Temp (water temperature in degrees Celsius at time of measurement) </li>
<li>Turbidity (turbidity of the water at time of measurement) </li>
<li>Clarity_m (water clarity, in metres, at the time of measurement)</li>
</ul>
<p></p>
<p>N/A values in the data set refer to an absence of measurement for that specific variable.</p>
<p></p>
<p>Report:</p>
<p><a href="https://environment.govt.nz/publications/derivation-of-nutrient-criteria-for-periphyton-biomass-objectives/">environment.govt.nz/publications/derivation-of-nut...</a></p>
<p>Snelder T, Kilroy C, Booker D (2021) Derivation of Nutrient Criteria for Periphyton Biomass Objectives. Using regional council monitoring data. LWP and NIWA Ltd, Christchurch, New Zealand</p>
<p></p>
<p>For subject matter questions please contact freshwater@me.govt.nz.</p>
From: <a href="https://data.mfe.govt.nz/group/freshwater-directorate/" title="Profile for Freshwater">Freshwater</a><br />
Added: 25 May 2022<br />
Updated: 25 May 2022<br />
River water quality, raw observations, 2013-2017tag:data.mfe.govt.nz,2021-08:layers:1059382021-08-18T23:23:11.898523+00:002021-08-18T23:11:05.489490+00:00
<a class="kxThumbnail" href="https://data.mfe.govt.nz/table/105938-river-water-quality-raw-observations-2013-2017/" title="Details for River water quality, raw observations, 2013-2017"><img src="https://assets.koordinates.com/kx-dandelion-live2-public/thumbs/layers/105938/350623/small.png" alt="River water quality, raw observations, 2013-2017 thumbnail"/></a><br />
<br /><strong>Updated with new data on 18 Aug 2021</strong><br />
<p>These data are the raw river water quality observations used to calculate <a href="https://data.mfe.govt.nz/table/99867-river-water-quality-state-20132017/">state</a> and <a href="https://data.mfe.govt.nz/table/99883-river-water-quality-trends-20082017-19982017-and-19902017/">trends</a> for the period ending 2017.</p>
<p>It contains ten parameters of water quality based on measurements made at monitored river sites:</p>
<ul>
<li>Nitrate-nitrogen </li>
<li>Ammoniacal nitrogen </li>
<li>Ammoniacal nitrogen (adjusted) </li>
<li>Total nitrogen </li>
<li>Total phosphorus </li>
<li>Dissolved reactive phosphorus </li>
<li>Water clarity </li>
<li>Turbidity </li>
<li>Escherichia coli </li>
<li>Macroinvertebrate community index</li>
</ul>
<p></p>
<p>More information on this dataset and how it relates to our environmental reporting indicators and topics can be found in the summary report available at <a href="http://www.mfe.govt.nz/publications/fresh-water/water-quality-state-and-trends-new-zealand-rivers-analyses-of-national-data"></a><a href="http://www.mfe.govt.nz/publications/fresh-water/water-qua">www.mfe.govt.nz/publications/fresh-water/water-qua</a>....</p>
<p></p>
<p><strong>Note: This dataset has a large number of rows, which Microsoft Excel may not be able to fully open. </strong><em><strong>A DBMS, statistical or GIS application is needed to view the entire dataset.</strong></em></p>
From: <a href="https://data.mfe.govt.nz/group/environmental-reporting/" title="Profile for Environmental Reporting">Environmental Reporting</a><br />
Added: 18 Aug 2021<br />
Updated: 18 Aug 2021<br />
River water quality modelled, state, 2013–2017tag:data.mfe.govt.nz,2019-04:layers:998712019-04-16T00:46:39.088899+00:002021-04-22T08:16:41.892595+00:00
<a class="kxThumbnail" href="https://data.mfe.govt.nz/table/99871-river-water-quality-modelled-state-20132017/" title="Details for River water quality modelled, state, 2013–2017"><img src="https://assets.koordinates.com/kx-dandelion-live2-public/thumbs/layers/99871/345810/small.png" alt="River water quality modelled, state, 2013–2017 thumbnail"/></a><br />
<br /><strong>Updated with new data on 22 Apr 2021</strong><br />
<p><strong>23 April 2021: A new version of this data set has been published. It includes data on 4 parameters (Ammoniacal nitrogen (adjusted), </strong><em><strong>Escherichia coli</strong></em><strong>, Macroinvertebrate Community Index and Total Phosphorus) that had been missing from the file that was published as part of the Our freshwater 2020 release in April 16 2020. The updated data set also includes data on DRP for all 593,337 REC segments, since the file from April 16 2020 only had data for 255,860 of these segments.</strong></p>
<p><strong>16 April 2020: Subsequent to publication in April 2019 we discovered two small errors with this dataset. These included:</strong></p>
<ul>
<li><strong>Errors in the coordinates of some sites and their associated metadata (such as landcover and elevation).</strong> </li>
<li><strong>Errors in our calculation of dominant landcover.</strong></li>
</ul>
<p><strong>In addition, flow data from TopNet has also been updated.</strong></p>
<p><strong>These changes have a minor impact on overall results. These changes have have been corrected, and are republished here, as part of the Our freshwater 2020 release.</strong></p>
<p></p>
<p><em><strong>IMPORTANT INFORMATION</strong></em></p>
<p><em>1) The main (cleaned) dataset is structured by each row having a nzsegment and np_id combination. A large dataset (~ 1 GB) has resulted, due to the inclusion of the ANZG/NOF columns and the 10 different np_id values. There are ~ 6 million rows to this dataset, however a 32-bit version of Microsoft Excel will only display/download ~ 1 million rows. __<strong>A DBMS, statistical or GIS application is needed to view the entire dataset</strong>__.</em></p>
<p><em>2) A smaller raw dataset (see attachments) is provided which structures each row relating to a river segment and drops the ANZG/NOF columns.</em></p>
<p><em>3) The attached metadata/date quality report provides further information on the NOF, ANZG and the "McDowell meet/doesnt meet" attachment.</em></p>
<p></p>
<p>This dataset contains ten parameters of water quality based on measurements made at monitored river sites:</p>
<ul>
<li>Nitrate-nitrogen </li>
<li>Ammoniacal nitrogen </li>
<li>Ammoniacal nitrogen (adjusted) </li>
<li>Total nitrogen </li>
<li>Total phosphorus </li>
<li>Dissolved reactive phosphorus </li>
<li>Water clarity </li>
<li>Turbidity </li>
<li>Escherichia coli </li>
<li>Macroinvertebrate community index These parameters are used to measure: </li>
<li>Modelled median values for all of New Zealand’s river length for the period 2013 to 2017 </li>
<li>For selected indicators, how the modelled values compare to the National Objectives Framework (NOF) (MfE, 2017) bands related to ecosystem health and human health for recreation, and to expected concentrations in natural conditions, as shown by the default guideline values in the Australian and New Zealand guidelines for fresh and marine water quality (ANZG, 2018)</li>
</ul>
<p>More information on this dataset and how it relates to our environmental reporting indicators and topics can be found in the attached data quality pdf.</p>
<p>Summary report available at <a href="http://www.mfe.govt.nz/publications/fresh-water/spatial-modelling-of-river-water-quality-state-incorporating-monitoring">www.mfe.govt.nz/publications/fresh-water/spatial-m...</a></p>
From: <a href="https://data.mfe.govt.nz/group/environmental-reporting/" title="Profile for Environmental Reporting">Environmental Reporting</a><br />
Added: 16 Apr 2019<br />
Updated: 22 Apr 2021<br />
River water quality, heavy metals, trend, 2011-2017tag:data.mfe.govt.nz,2020-04:layers:1045622020-04-06T20:54:16.301176+00:002020-04-06T20:53:19.250861+00:00
<a class="kxThumbnail" href="https://data.mfe.govt.nz/table/104562-river-water-quality-heavy-metals-trend-2011-2017/" title="Details for River water quality, heavy metals, trend, 2011-2017"><img src="https://assets.koordinates.com/kx-dandelion-live2-public/thumbs/layers/104562/332503/small.png" alt="River water quality, heavy metals, trend, 2011-2017 thumbnail"/></a><br />
<br /><strong>Updated with new data on 06 Apr 2020</strong><br />
<p>Heavy metals in river waters are an indicator of river water quality. We monitor a subset of rivers and streams in predominantly urban areas in Auckland, Wellington, and Christchurch, and look at how these values are changing over time. This indicator shows:</p>
<ul>
<li>trends in concentrations based on measurements made at monitoring sites during the seven-year period from 2011 to 2017</li>
</ul>
<p>Summary report available at <a href="https://www.mfe.govt.nz/publications/fresh-water/urban-river-and-stream-water-quality-state-and-trends-2008-2017-0"></a><a href="https://www.mfe.govt.nz/publications/fresh-water/urban-river-and-stream-water-quality-state-and-trends-2008-2017-0">www.mfe.govt.nz/publications/fresh-water/urban-riv...</a>.</p>
<p>More information on this dataset and how it relates to our environmental reporting indicators and topics can be found in the attached data quality pdf.</p>
From: <a href="https://data.mfe.govt.nz/group/environmental-reporting/" title="Profile for Environmental Reporting">Environmental Reporting</a><br />
Added: 06 Apr 2020<br />
Updated: 06 Apr 2020<br />
River water quality, heavy metals, state, 2015-2017tag:data.mfe.govt.nz,2020-04:layers:1045632020-04-06T21:18:10.391451+00:002020-04-06T21:17:10.821190+00:00
<a class="kxThumbnail" href="https://data.mfe.govt.nz/table/104563-river-water-quality-heavy-metals-state-2015-2017/" title="Details for River water quality, heavy metals, state, 2015-2017"><img src="https://assets.koordinates.com/kx-dandelion-live2-public/thumbs/layers/104563/332504/small.png" alt="River water quality, heavy metals, state, 2015-2017 thumbnail"/></a><br />
<br /><strong>Updated with new data on 06 Apr 2020</strong><br />
<p>Heavy metals in river waters are an indicator of river water quality. We monitor a subset of rivers and streams in predominantly urban areas in Auckland, Wellington, and Christchurch, and look at how these values are changing over time. This indicator shows:</p>
<ul>
<li>concentrations of dissolved copper and zinc measured at monitoring sites for the three-year period from 2015 to 2017 </li>
<li>how these compare to the default guideline values for the protection of 95 percent of species in the <em>Australian and New Zealand guidelines for fresh and marine water quality</em> (ANZG, 2018)</li>
</ul>
<p>Summary report available at <a href="https://www.mfe.govt.nz/publications/fresh-water/urban-river-and-stream-water-quality-state-and-trends-2008-2017-0"></a><a href="https://www.mfe.govt.nz/publications/fresh-water/urban-river-and-stream-water-quality-state-and-trends-2008-2017-0">www.mfe.govt.nz/publications/fresh-water/urban-riv...</a>.</p>
<p>More information on this dataset and how it relates to our environmental reporting indicators and topics can be found in the attached data quality pdf.</p>
From: <a href="https://data.mfe.govt.nz/group/environmental-reporting/" title="Profile for Environmental Reporting">Environmental Reporting</a><br />
Added: 06 Apr 2020<br />
Updated: 06 Apr 2020<br />
River water quality, state, 2013–2017tag:data.mfe.govt.nz,2019-04:layers:998672019-04-15T23:52:54.686207+00:002020-04-14T04:37:56.653913+00:00
<a class="kxThumbnail" href="https://data.mfe.govt.nz/table/99867-river-water-quality-state-20132017/" title="Details for River water quality, state, 2013–2017"><img src="https://assets.koordinates.com/kx-dandelion-live2-public/thumbs/layers/99867/332749/small.png" alt="River water quality, state, 2013–2017 thumbnail"/></a><br />
<br /><strong>Updated with new data on 14 Apr 2020</strong><br />
<p><strong>16 April 2020: Subsequent to publication in April 2019 we discovered two small errors with this dataset. These included:</strong></p>
<ul>
<li><strong>Errors in the coordinates of some sites and their associated metadata (such as landcover and elevation).</strong> </li>
<li><strong>Errors in our calculation of dominant landcover.</strong></li>
</ul>
<p><strong>In addition, flow data from TopNet has also been updated.</strong></p>
<p><strong>These changes have a minor impact on overall results. These changes have have been corrected, and are republished here, as part of the Our freshwater 2020 release.</strong></p>
<p></p>
<p>This dataset contains ten parameters of water quality based on measurements made at monitored river sites:</p>
<ul>
<li>Nitrate-nitrogen </li>
<li>Ammoniacal nitrogen </li>
<li>Ammoniacal nitrogen (adjusted) </li>
<li>Total nitrogen </li>
<li>Total phosphorus </li>
<li>Dissolved reactive phosphorus </li>
<li>Water clarity </li>
<li>Turbidity </li>
<li>Escherichia coli </li>
<li>Macroinvertebrate community index</li>
</ul>
<p>This dataset includes:</p>
<ul>
<li>Median values for the period 2013 to 2017 </li>
<li>for selected indicators, how these values compare to the National Objectives Framework (NOF) (MfE, 2017) bands related to ecosystem health and human health for recreation, and to expected concentrations in natural conditions, as shown by the default guideline values in the Australian and New Zealand guidelines for fresh and marine water quality (ANZG, 2018)</li>
</ul>
<p>More information on this dataset and how it relates to our environmental reporting indicators and topics can be found in the attached data quality pdf.</p>
<p>Summary report available at <a href="http://www.mfe.govt.nz/publications/fresh-water/water-quality-state-and-trends-new-zealand-rivers-analyses-of-national-data">www.mfe.govt.nz/publications/fresh-water/water-qua...</a>.</p>
From: <a href="https://data.mfe.govt.nz/group/environmental-reporting/" title="Profile for Environmental Reporting">Environmental Reporting</a><br />
Added: 15 Apr 2019<br />
Updated: 14 Apr 2020<br />
River water quality trends, 2008–2017, 1998–2017, and 1990–2017tag:data.mfe.govt.nz,2019-04:layers:998832019-04-16T03:00:13.012822+00:002020-04-14T03:51:00.317293+00:00
<a class="kxThumbnail" href="https://data.mfe.govt.nz/table/99883-river-water-quality-trends-20082017-19982017-and-19902017/" title="Details for River water quality trends, 2008–2017, 1998–2017, and 1990–2017"><img src="https://assets.koordinates.com/kx-dandelion-live2-public/thumbs/layers/99883/332748/small.png" alt="River water quality trends, 2008–2017, 1998–2017, and 1990–2017 thumbnail"/></a><br />
<br /><strong>Updated with new data on 14 Apr 2020</strong><br />
<p><strong>16 April 2020: Subsequent to publication in April 2019 we discovered two small errors with this dataset. These included:</strong></p>
<ul>
<li><strong>Errors in the coordinates of some sites and their associated metadata (such as landcover and elevation).</strong> </li>
<li><strong>Errors in our calculation of dominant landcover.</strong></li>
</ul>
<p><strong>In addition, flow data from TopNet has also been updated.</strong></p>
<p><strong>These changes have a minor impact on overall results. These changes have have been corrected, and are republished here, as part of the </strong><em><strong>Our freshwater 2020</strong></em><strong> release.</strong></p>
<p></p>
<p>This dataset measures how water quality in New Zealand’s rivers is changing over time. It contains nine parameters of water quality based on measurements made at monitored river sites in years 1990-2017:</p>
<ul>
<li>Nitrate-nitrogen </li>
<li>Ammoniacal nitrogen </li>
<li>Total nitrogen </li>
<li>Total phosphorus </li>
<li>Dissolved reactive phosphorus </li>
<li>Water clarity </li>
<li>Turbidity </li>
<li>Escherichia coli </li>
<li>Macroinvertebrate community index</li>
</ul>
<p>More information on this dataset and how it relates to our environmental reporting indicators and topics can be found in the attached data quality pdf.</p>
<p>Summary report available at <a href="http://www.mfe.govt.nz/publications/fresh-water/water-quality-state-and-trends-new-zealand-rivers-analyses-of-national-data">www.mfe.govt.nz/publications/fresh-water/water-qua...</a>.</p>
From: <a href="https://data.mfe.govt.nz/group/environmental-reporting/" title="Profile for Environmental Reporting">Environmental Reporting</a><br />
Added: 16 Apr 2019<br />
Updated: 14 Apr 2020<br />
River water quality, raw data by site, 1975-2013tag:data.mfe.govt.nz,2017-03:layers:535902017-03-30T02:58:56.226261+00:002017-03-30T02:55:07.454563+00:00
<a class="kxThumbnail" href="https://data.mfe.govt.nz/table/53590-river-water-quality-raw-data-by-site-1975-2013/" title="Details for River water quality, raw data by site, 1975-2013"><img src="https://assets.koordinates.com/kx-dandelion-live2-public/thumbs/layers/53590/164073/small.png" alt="River water quality, raw data by site, 1975-2013 thumbnail"/></a><br />
<br /><strong>Updated with new data on 30 Mar 2017</strong><br />
<p>River water quality water is valued for many reasons including ecological function and habitat, recreational value, its role in supporting people and industry, and its cultural significance. Nutrients such as nitrogen and phosphorus are essential for plant growth, however too much in rivers can lead to ‘nuisance’ growths of river algae and aquatic plants, degrading habitat. High concentrations in the form of ammoniacal nitrogen and nitrate-nitrogen can be toxic to fish and other aquatic animals. Water clarity is a measure of underwater visibility, and affects habitat of aquatic life such as fish and birds, and can also impact on aesthetic values and recreational use of rivers and streams. Escherichia coli (E.coli) can indicate the presence of pathogens (disease-causing organisms) from animal or human faeces, which can cause illness. </p>
<p>File contains raw data collected at regional council and NIWA monitored sites over the period 1975-2013. Fields are described as follows. Refer to Larned et al. 2015 for further details:<br>
* nemarid ---- Unique NIWA ID<br>
* lawaid ---- Unique LAWA ID<br>
* rcid ---- Collection agency<br>
* srcid ---- Region site is located in<br>
* sflag ---- River (r) or Estuary (e)<br>
* river ---- River name<br>
* location ---- Name of site, assigned by collection agency<br>
* nzmge ---- easting<br>
* nzmgn ---- northing<br>
* nzreach ---- REC1 segment identifier<br>
* sdate ---- Sample date (yyyy-mm-dd)<br>
* Q ---- Flow recorded when sample was taken (if available), cumecs<br>
* npid ---- NIWA parameter ID (as used in Larned et al. 2015)<br>
* lpid ---- LAWA parameter ID<br>
* fdval ---- Parameter value (units are mg/m3, except CLAR (m) and ECOLI (n/100 mL)) </p>
<p>For more information please see:<br>
Larned, S, Snelder, T, Unwin, M, McBride, G, Verburg, P, McMillan, H (2015).Analysis of Water Quality in New Zealand lakes and Rivers: data sources, data sets, assumptions, limitations, methods and results. NIWA Client Report no. CHC2015-033. Available at <a href="https://data.mfe.govt.nz/x/Mo8VUY">data.mfe.govt.nz/x/Mo8VUY</a> from the Ministry for the Environment dataservice. </p>
<p>This dataset relates to the "River water quality" measures on the Environmental Indicators, Te taiao Aotearoa website.</p>
From: <a href="https://data.mfe.govt.nz/group/environmental-reporting/" title="Profile for Environmental Reporting">Environmental Reporting</a><br />
Added: 30 Mar 2017<br />
Updated: 30 Mar 2017<br />
Predicted river water quality, 2009–13tag:data.mfe.govt.nz,2017-04:layers:536012017-04-24T04:36:25.812725+00:002017-04-24T04:19:26.547108+00:00
<a class="kxThumbnail" href="https://data.mfe.govt.nz/table/53601-predicted-river-water-quality-200913/" title="Details for Predicted river water quality, 2009–13"><img src="https://assets.koordinates.com/kx-dandelion-live2-public/thumbs/layers/53601/164932/small.png" alt="Predicted river water quality, 2009–13 thumbnail"/></a><br />
<br /><strong>Updated with new data on 24 Apr 2017</strong><br />
<p>River water quality is valued for many reasons including ecological function and habitat, recreational value, its role in supporting people and industry, and its cultural significance. Nutrients such as nitrogen and phosphorus are essential for plant growth, however too much in rivers can lead to excessive growth of river algae, which can degrade habitat. </p>
<p>High concentrations of nitrogen in the form of ammoniacal nitrogen and nitrate-nitrogen can be toxic to fish and other aquatic animals, and nitrate-nitrogen can be toxic to humans. Water clarity is a measure of underwater visibility, and affects habitat of aquatic life such as fish and birds, and can also impact on aesthetic values and recreational use of rivers and streams. Escherichia coli (E.coli) can indicate the presence of pathogens (disease-causing organisms) from animal or human faeces, which can cause illness. </p>
<p>File contains the model outputs for river water quality indicators as medians for each river segment in New Zealand’s digital river network.</p>
From: <a href="https://data.mfe.govt.nz/group/environmental-reporting/" title="Profile for Environmental Reporting">Environmental Reporting</a><br />
Added: 24 Apr 2017<br />
Updated: 24 Apr 2017<br />
Urban water quality - all data - 1985–2015tag:data.mfe.govt.nz,2017-04:layers:536002017-04-24T04:03:07.011216+00:002017-04-24T04:02:01.476283+00:00
<a class="kxThumbnail" href="https://data.mfe.govt.nz/table/53600-urban-water-quality-all-data-19852015/" title="Details for Urban water quality - all data - 1985–2015"><img src="https://assets.koordinates.com/kx-dandelion-live2-public/thumbs/layers/53600/164931/small.png" alt="Urban water quality - all data - 1985–2015 thumbnail"/></a><br />
<br /><strong>Updated with new data on 24 Apr 2017</strong><br />
<p>Urban water quality indicators include heavy metals, nutrients, and E.coli. The concentrations of these indicators are compared to the proportion of urban land cover in catchments. </p>
<p>Heavy metals have the ability to accumulate in sediments, shellfish, and other aquatic organisms. Metals can reach toxic levels in organisms making them unsafe to consume and can be toxic to aquatic life. Nutrients can cause excessive algal growth and E.coli has the ability to make people sick while they are swimming if concentrations are high enough. Rivers with poor water quality are rarely suitable for recreation and provide poor habitats for aquatic species. </p>
<p>File contains data related to each sampling occasion by site for each water quality indicator in Auckland, Wellington, and Christchurch over the period 1985–15.</p>
From: <a href="https://data.mfe.govt.nz/group/environmental-reporting/" title="Profile for Environmental Reporting">Environmental Reporting</a><br />
Added: 24 Apr 2017<br />
Updated: 24 Apr 2017<br />
Urban stream water quality - trends - 2008–15tag:data.mfe.govt.nz,2017-04:layers:535982017-04-24T03:24:36.574488+00:002017-04-24T03:23:38.253598+00:00
<a class="kxThumbnail" href="https://data.mfe.govt.nz/table/53598-urban-stream-water-quality-trends-200815/" title="Details for Urban stream water quality - trends - 2008–15"><img src="https://assets.koordinates.com/kx-dandelion-live2-public/thumbs/layers/53598/164929/small.png" alt="Urban stream water quality - trends - 2008–15 thumbnail"/></a><br />
<br /><strong>Updated with new data on 24 Apr 2017</strong><br />
<p>Urban water quality indicators include heavy metals, nutrients, and E.coli. The concentrations of these indicators are compared to the proportion of urban land cover in catchments. </p>
<p>Zinc and copper are heavy metals that can accumulate in sediments, shellfish, and other aquatic organisms. Metals can reach toxic levels in organisms making them unsafe to eat and can be toxic to aquatic life. Nitrogen and phosphorus are nutrients that can cause excessive algal growth. Ammonical nitrogen and nitrate-nitrogen can be toxic to aquatic life if concentrations in streams are high enough. E.coli is an indicator of disease-causing organisms, which may affect human health and recreational values in streams. </p>
<p>File contains trend analyses by site for water quality indicators in Auckland, Wellington, and Christchurch over the period 2008–15.</p>
From: <a href="https://data.mfe.govt.nz/group/environmental-reporting/" title="Profile for Environmental Reporting">Environmental Reporting</a><br />
Added: 24 Apr 2017<br />
Updated: 24 Apr 2017<br />
Urban water quality - state - 2013–2015tag:data.mfe.govt.nz,2017-04:layers:535972017-04-24T02:44:14.056592+00:002017-04-24T02:43:19.875369+00:00
<a class="kxThumbnail" href="https://data.mfe.govt.nz/table/53597-urban-water-quality-state-20132015/" title="Details for Urban water quality - state - 2013–2015"><img src="https://assets.koordinates.com/kx-dandelion-live2-public/thumbs/layers/53597/164928/small.png" alt="Urban water quality - state - 2013–2015 thumbnail"/></a><br />
<br /><strong>Updated with new data on 24 Apr 2017</strong><br />
<p>Urban water quality indicators include heavy metals, nutrients, and E.coli. The concentrations of these indicators are compared to the proportion of urban land cover in catchments. </p>
<p>Heavy metals have the ability to accumulate in sediments, shellfish, and other aquatic organisms. Metals can reach toxic levels in organisms making them unsafe to consume and can be toxic to aquatic life. Nutrients can cause excessive algal growth and E.coli has the ability to make people sick while they are swimming if concentrations are high enough. Rivers with poor water quality are rarely suitable for recreation and provide poor habitats for aquatic species. </p>
<p>File contains data analysis of medians and percentiles by site for water quality indicators, and includes the proportion of urban land cover in catchments in Auckland, Wellington and Christchurch over the period 2013–2015.</p>
From: <a href="https://data.mfe.govt.nz/group/environmental-reporting/" title="Profile for Environmental Reporting">Environmental Reporting</a><br />
Added: 24 Apr 2017<br />
Updated: 24 Apr 2017<br />
River water quality percentiles, by monitoring site, 2009-2013tag:data.mfe.govt.nz,2015-09:layers:525332015-09-29T04:47:03.862977+00:002015-09-29T04:46:05.244071+00:00
<a class="kxThumbnail" href="https://data.mfe.govt.nz/table/52533-river-water-quality-percentiles-by-monitoring-site-2009-2013/" title="Details for River water quality percentiles, by monitoring site, 2009-2013"><img src="https://assets.koordinates.com/kx-dandelion-live2-public/thumbs/layers/52533/147260/small.png" alt="River water quality percentiles, by monitoring site, 2009-2013 thumbnail"/></a><br />
<br /><strong>Updated with new data on 29 Sep 2015</strong><br />
<p>River water quality water is valued for many reasons including ecological function and habitat, recreational value, its role in supporting people and industry, and its cultural significance. Nutrients such as nitrogen and phosphorus are essential for plant growth, however too much in rivers can lead to ‘nuisance’ growths of river algae and aquatic plants, degrading habitat. High concentrations in the form of ammoniacal nitrogen and nitrate-nitrogen can be toxic to fish and other aquatic animals. Water clarity is a measure of underwater visibility, and affects habitat of aquatic life such as fish and birds, and can also impact on aesthetic values and recreational use of rivers and streams. Escherichia coli bacteria can indicate the presence of pathogens (disease-causing organisms) from animal or human faeces, which can cause illness.<br>
State (percentile) results for the following parameters, by monitored site for the period 2009–2013, are provided. Refer to Larned at al (2015) for further details. </p>
<p> Clarity (CLAR), m<br>
Ammoniacal nitrogen (NH4N), mg/m3<br>
Nitrate nitrogen (NO3N), mg/m3<br>
Total nitrogen (unfiltered) (TN), mg/m3<br>
Dissolved reactive phosphorus (DRP), mg/m3<br>
Total phosphorus (unfiltered) (TP), mg/m3<br>
Escherichia coli (ECOLI), n/100 mL </p>
<p>For more information please see:<br>
Larned, S, Snelder, T, Unwin, M, McBride, G, Verburg, P, McMillan, H (2015).Analysis of Water Quality in New Zealand lakes and Rivers: data sources, data sets, assumptions, limitations, methods and results. NIWA Client Report no. CHC2015-033<br>
Available at <a href="https://data.mfe.govt.nz/x/s9WT2y">data.mfe.govt.nz/x/s9WT2y</a> from the Ministry for the Environment dataservice. </p>
<p>This dataset relates to the "River water quality" measures on the Environmental Indicators, Te taiao Aotearoa website.</p>
From: <a href="https://data.mfe.govt.nz/group/environmental-reporting/" title="Profile for Environmental Reporting">Environmental Reporting</a><br />
Added: 29 Sep 2015<br />
Updated: 29 Sep 2015<br />
River water quality, raw data by NRWQN site, 1989-2013tag:data.mfe.govt.nz,2015-09:layers:525322015-09-29T04:46:41.314777+00:002015-09-29T04:45:23.017819+00:00
<a class="kxThumbnail" href="https://data.mfe.govt.nz/table/52532-river-water-quality-raw-data-by-nrwqn-site-1989-2013/" title="Details for River water quality, raw data by NRWQN site, 1989-2013"><img src="https://assets.koordinates.com/kx-dandelion-live2-public/thumbs/layers/52532/147259/small.png" alt="River water quality, raw data by NRWQN site, 1989-2013 thumbnail"/></a><br />
<br /><strong>Updated with new data on 29 Sep 2015</strong><br />
<p>River water quality water is valued for many reasons including ecological function and habitat, recreational value, its role in supporting people and industry, and its cultural significance. Nutrients such as nitrogen and phosphorus are essential for plant growth, however too much can lead to ‘nuisance’ growths of river algae and aquatic plants, degrading habitat. High concentrations in the form of ammoniacal nitrogen and nitrate-nitrogen can be toxic to fish and other aquatic animals. Water clarity is a measure of underwater visibility, and affects habitat of aquatic life such as fish and birds, and can also impact on aesthetic values and recreational use of rivers and streams. Escherichia coli (E.coli) can indicate the presence of pathogens (disease-causing organisms) from animal or human faeces, which can cause illness. </p>
<p>File contains raw data collected at NIWA monitored sites of the National River Water Quality Network (NRWQN) over the period 1989-2013. The NRWQN network is used to calculate national trends in river water quality. Fields are described as follows. Refer to Larned et al. 2015 for further details:<br>
<em> sID ---- Unique site ID<br>
</em> srcid ---- Region site is located in<br>
<em> sflag ---- River (r) or Estuary (e)<br>
</em> river ---- River name<br>
<em> location ---- Name of site<br>
</em> nzmge ---- easting<br>
<em> nzmgn ---- northing<br>
</em> NZReach ---- REC1 segment identifier<br>
<em> sDate ---- sample date<br>
</em> Q ---- Recorded flow when sample was taken, cumecs<br>
<em> npid ---- NIWA parameter ID (as used in Larned et al. 2015)<br>
</em> values ---- Parameter value (units are mg/m3, except CLAR (m) and ECOLI (n/100 mL)) </p>
<p>For more information please see:<br>
Larned, S, Snelder, T, Unwin, M, McBride, G, Verburg, P, McMillan, H (2015).Analysis of Water Quality in New Zealand lakes and Rivers: data sources, data sets, assumptions, limitations, methods and results. NIWA Client Report no. CHC2015-033. Available at <a href="https://data.mfe.govt.nz/x/DDui3u">data.mfe.govt.nz/x/DDui3u</a> from the Ministry for the Environment dataservice. </p>
<p>This dataset relates to the "River water quality" measures on the Environmental Indicators, Te taiao Aotearoa website.</p>
From: <a href="https://data.mfe.govt.nz/group/environmental-reporting/" title="Profile for Environmental Reporting">Environmental Reporting</a><br />
Added: 29 Sep 2015<br />
Updated: 29 Sep 2015<br />
River water quality trends by monitoring site, 1989-2013tag:data.mfe.govt.nz,2015-09:layers:525312015-09-29T04:45:40.715088+00:002015-09-29T04:44:57.955499+00:00
<a class="kxThumbnail" href="https://data.mfe.govt.nz/table/52531-river-water-quality-trends-by-monitoring-site-1989-2013/" title="Details for River water quality trends by monitoring site, 1989-2013"><img src="https://assets.koordinates.com/kx-dandelion-live2-public/thumbs/layers/52531/147258/small.png" alt="River water quality trends by monitoring site, 1989-2013 thumbnail"/></a><br />
<br /><strong>Updated with new data on 29 Sep 2015</strong><br />
<p>River water quality water is valued for many reasons including ecological function and habitat, recreational value, its role in supporting people and industry, and its cultural significance. Nutrients such as nitrogen and phosphorus are essential for plant growth, however too much in rivers can lead to ‘nuisance’ growths of river algae and aquatic plants, degrading habitat. High concentrations in the form of ammoniacal nitrogen and nitrate-nitrogen can be toxic to fish and other aquatic animals. Water clarity is a measure of underwater visibility, and affects habitat of aquatic life such as fish and birds, and can also impact on aesthetic values and recreational use of rivers and streams. </p>
<p>Trend statistics and calculation results for the periods 1989-2013, 1994-2013, and 2004-2013 are provided by monitored site. Units for parameters are mg/m3, except CLAR (m). Refer to Larned at al. 2015 for further details. </p>
<p>For more information please see:<br>
Larned, S, Snelder, T, Unwin, M, McBride, G, Verburg, P, McMillan, H (2015).Analysis of Water Quality in New Zealand lakes and Rivers: data sources, data sets, assumptions, limitations, methods and results. NIWA Client Report no. CHC2015-033. Available at <a href="https://data.mfe.govt.nz/x/DDui3u">data.mfe.govt.nz/x/DDui3u</a> from the Ministry for the Environment dataservice. </p>
<p>This dataset relates to the "River water quality" measures on the Environmental Indicators, Te taiao Aotearoa website.</p>
From: <a href="https://data.mfe.govt.nz/group/environmental-reporting/" title="Profile for Environmental Reporting">Environmental Reporting</a><br />
Added: 29 Sep 2015<br />
Updated: 29 Sep 2015<br />
Macroinvertebrate Community Index trends, by monitoring site, 2004-13tag:data.mfe.govt.nz,2015-09:layers:525352015-09-29T04:48:03.276101+00:002015-09-29T04:47:27.284714+00:00
<a class="kxThumbnail" href="https://data.mfe.govt.nz/table/52535-macroinvertebrate-community-index-trends-by-monitoring-site-2004-13/" title="Details for Macroinvertebrate Community Index trends, by monitoring site, 2004-13"><img src="https://assets.koordinates.com/kx-dandelion-live2-public/thumbs/layers/52535/147262/small.png" alt="Macroinvertebrate Community Index trends, by monitoring site, 2004-13 thumbnail"/></a><br />
<br /><strong>Updated with new data on 29 Sep 2015</strong><br />
<p>Benthic macroinvertebrates are small animals without backbones (eg insects and worms). They live on and under submerged logs, rocks, and aquatic plants on the beds of rivers and streams during some part of their life cycle. Macroinvertebrates play a central role in stream ecosystems by feeding on periphyton (algae), macrophytes (aquatic plants), dead leaves and wood, or on each other. A high macroinvertebrate community index (MCI) indicates a high level of river health. </p>
<p>File contains trend statistics and calculation results for the period 2004-2013. </p>
<p>For more information please see:<br>
Larned, S, Snelder, T, Unwin, M, McBride, G, Verburg, P, McMillan, H (2015).Analysis of Water Quality in New Zealand lakes and Rivers: data sources, data sets, assumptions, limitations, methods and results. NIWA Client Report no. CHC2015-033. Available at <a href="https://data.mfe.govt.nz/x/DDui3u">data.mfe.govt.nz/x/DDui3u</a> from the Ministry for the Environment dataservice. </p>
<p>This dataset relates to the "River water quality: Benthic macroinvertebrates" measure on the Environmental Indicators, Te taiao Aotearoa website.</p>
From: <a href="https://data.mfe.govt.nz/group/environmental-reporting/" title="Profile for Environmental Reporting">Environmental Reporting</a><br />
Added: 29 Sep 2015<br />
Updated: 29 Sep 2015<br />
Macroinvertebrate Community Index percentiles, by monitoring site, 2009-13tag:data.mfe.govt.nz,2015-09:layers:525342015-09-29T04:48:02.920113+00:002015-09-29T04:47:12.653775+00:00
<a class="kxThumbnail" href="https://data.mfe.govt.nz/table/52534-macroinvertebrate-community-index-percentiles-by-monitoring-site-2009-13/" title="Details for Macroinvertebrate Community Index percentiles, by monitoring site, 2009-13"><img src="https://assets.koordinates.com/kx-dandelion-live2-public/thumbs/layers/52534/147261/small.png" alt="Macroinvertebrate Community Index percentiles, by monitoring site, 2009-13 thumbnail"/></a><br />
<br /><strong>Updated with new data on 29 Sep 2015</strong><br />
<p>Benthic macroinvertebrates are small animals without backbones (eg insects and worms). They live on and under submerged logs, rocks, and aquatic plants on the beds of rivers and streams during some part of their life cycle. Macroinvertebrates play a central role in stream ecosystems by feeding on periphyton (algae), macrophytes (aquatic plants), dead leaves and wood, or on each other. A high macroinvertebrate community index (MCI) indicates a high level of river health. </p>
<p>File contains state results for each monitored site, expressed as percentile calculations for the period 2009-2013. See Larned et al. 2015 for further details. </p>
<p>For more information please see:<br>
Larned, S, Snelder, T, Unwin, M, McBride, G, Verburg, P, McMillan, H (2015).Analysis of Water Quality in New Zealand lakes and Rivers: data sources, data sets, assumptions, limitations, methods and results. NIWA Client Report no. CHC2015-033. Available at <a href="https://data.mfe.govt.nz/x/DDui3u">data.mfe.govt.nz/x/DDui3u</a> from the Ministry for the Environment dataservice. </p>
<p>This dataset relates to the "River water quality: Benthic macroinvertebrates" measure on the Environmental Indicators, Te taiao Aotearoa website.</p>
From: <a href="https://data.mfe.govt.nz/group/environmental-reporting/" title="Profile for Environmental Reporting">Environmental Reporting</a><br />
Added: 29 Sep 2015<br />
Updated: 29 Sep 2015<br />