River water quality state 2013–2017

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168
4
Added
15 Apr 2019

This dataset was first added to MfE Data Service on 15 Apr 2019.

This dataset contains ten parameters of water quality based on measurements made at monitored river sites:

- Nitrate-nitrogen
- Ammoniacal nitrogen
- Ammoniacal nitrogen (adjusted)
- Total nitrogen
- Total phosphorus
- Dissolved reactive phosphorus
- Water clarity
- Turbidity
- Escherichia coli
- Macroinvertebrate community index

This dataset includes:

- Median values for the period 2013 to 2017
- 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)

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 www.mfe.govt.nz/publications/fresh-water/water-qua....

Table ID 99867
Data type Table
Row count 8048
Services Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Nitrogen phosphorus and potassium in fertilisers Fertiliser Association 1990–2015

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Creative Commons Attribution 4.0 International

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995
3
Added
15 Apr 2019

This dataset was first added to MfE Data Service on 15 Apr 2019.

Industry estimates of fertiliser nutrient consumption in New Zealand 1990–2015.

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.

Table ID 99866
Data type Table
Row count 78
Services Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

New Zealand’s greenhouse gas emissions 1990–2016

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Creative Commons Attribution 4.0 International

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166
8
Added
15 Apr 2019

This dataset was first added to MfE Data Service on 15 Apr 2019.

We measure gases that are added to the atmosphere through human activities. This does not include natural sources such as biological processes or volcanic emissions.

We report greenhouse gas (GHG) emissions in carbon dioxide equivalent (CO2-e) units, which is a measure for how much global warming a given type and amount of greenhouse gas causes, using the equivalent amount of carbon dioxide as the reference. CO2-e is used for describing different greenhouse gases in a common unit, which allows them to be reported consistently.

Data may not include the latest emissions data, which can be found on the Ministry for the Environment’s website.

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.

Table ID 99865
Data type Table
Row count 18
Services Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Nitrogen and phosphorus in fertilisers APS 2002 2007 2012 and 2017

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Creative Commons Attribution 4.0 International

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1017
5
Added
15 Apr 2019

This dataset was first added to MfE Data Service on 15 Apr 2019.

The data shows tonnes of nitrogen applied calculated from the application of urea, diammonium phosphate (DAP), and ammonium sulphate (SOA) in New Zealand.

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.

Table ID 99863
Data type Table
Row count 1044
Services Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Groundwater quality trends 2005–2014

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Creative Commons Attribution 4.0 International

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768
9
Added
15 Apr 2019

This dataset was first added to MfE Data Service on 15 Apr 2019.

This dataset measures groundwater quality in New Zealand’s aquifers based on measurements made at monitored sites. Many factors influence the quality of our groundwater. Nitrogen, which occurs naturally in groundwater, can increase in concentrations due to agricultural and urban land use, and infrastructure such as waste treatment plants. High concentrations of nitrate-nitrogen in groundwater can affect human health and the quality of surrounding rivers and lakes that receive inflows from groundwater. Ammoniacal nitrogen can cause an undesirable smell that may make groundwater unsuitable for drinking water. Natural processes in groundwater can convert nitrate-nitrogen into ammoniacal nitrogen or other forms under some chemical conditions. Surplus phosphorus drains (leaches) into groundwater as dissolved reactive phosphorus. Too much nitrate-nitrogen, ammoniacal nitrogen, and phosphorus can lead to excessive plant and algae growth where groundwater flows into surface water. E. coli in groundwater is measured in colony forming units (cfu) and can indicate the presence of pathogens (disease-causing organisms) from animal or human faeces. The pathogens can cause illness for anyone who ingests them.

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.

Table ID 99856
Data type Table
Row count 448
Services Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Groundwater quality state 2010–2014

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Creative Commons Attribution 4.0 International

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1082
8
Added
14 Apr 2019

This dataset was first added to MfE Data Service on 14 Apr 2019.

This dataset measures groundwater quality in New Zealand’s aquifers based on measurements made at monitored sites. Many factors influence the quality of our groundwater. Nitrogen, which occurs naturally in groundwater, can increase in concentrations due to agricultural and urban land use, and infrastructure such as waste treatment plants. High concentrations of nitrate-nitrogen in groundwater can affect human health and the quality of surrounding rivers and lakes that receive inflows from groundwater. Ammoniacal nitrogen can cause an undesirable smell that may make groundwater unsuitable for drinking water. Natural processes in groundwater can convert nitrate-nitrogen into ammoniacal nitrogen or other forms under some chemical conditions. Surplus phosphorus drains (leaches) into groundwater as dissolved reactive phosphorus. Too much nitrate-nitrogen, ammoniacal nitrogen, and phosphorus can lead to excessive plant and algae growth where groundwater flows into surface water. E. coli in groundwater is measured in colony forming units (cfu) and can indicate the presence of pathogens (disease-causing organisms) from animal or human faeces. The pathogens can cause illness for anyone who ingests them.

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.

Table ID 99855
Data type Table
Row count 741
Services Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Health impacts of PM10, 2006 & 2016

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Creative Commons Attribution 4.0 International

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1742
8
Added
17 Oct 2018

This dataset was first added to MfE Data Service on 17 Oct 2018.

PM10 (particulate matter less than 10 micrometres in diameter) comprises solid and liquid particles in the air. PM10 can be inhaled and the largest particles in this size fraction are deposited in the upper airways, while the smaller ones can deposit deep in the lungs. Children, the elderly, and people with existing heart or lung problems have a higher risk of health effects from PM10 exposure. Health effects include decreased lung function or heart attack, and mortality.
We report on the modelled number of premature deaths for adults (30+ years), hospitalisations, and restricted activity days for people of all ages for years 2006 and 2016 only. The model only includes impacts that result from exposure to PM10 that comes from human activities.
We focus on PM10 from human activities because these sources can be managed, unlike PM from natural sources such as sea salt.
• Premature deaths are those, often preventable, occurring before a person reaches the age they could be expected to live to.
• Hospitalisations relate to those for respiratory and cardiac illnesses (not including cases leading to premature death).
• Restricted activity days occur when symptoms are sufficient to limit usual activities such as work or study. These days aren’t shared evenly across the population – people with asthma or other respiratory conditions would likely have more restricted activity days.
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.

Table ID 98462
Data type Table
Row count 12
Services Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Nitrogen dioxide concentrations: New Zealand Transport Agency data, 2010–16

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Creative Commons Attribution 4.0 International

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1788
19
Added
16 Oct 2018

This dataset was first added to MfE Data Service on 16 Oct 2018.

Nitrogen dioxide (NO2) is a gas that is harmful to human health, ecosystems, and plants (US EPA, 2008). It can be emitted directly into the air but is often formed as a secondary pollutant when nitric oxide (NO) emissions react with other chemicals. It also contributes to the formation of secondary particulate matter (PM) and ozone, which have their own health impacts. In New Zealand, motor vehicles are the main human-made source of nitrogen oxides (NOx), the collective term for NO2 and NO. Because nitrogen dioxide concentrations are closely associated with vehicle emissions, it can be used as a proxy for other motor-vehicle pollutants such as benzene, carbon dioxide, and carbon monoxide.
Human exposure to high nitrogen dioxide concentrations causes inflammation of the airways and respiratory problems, particularly asthma. Nitrogen dioxide causes leaf injury in plants exposed to high levels. It also contributes to forming secondary particulate matter and ozone, which have their own health impacts.
We report on observed nitrogen dioxide concentrations from the New Zealand Transport Agency’s (NZTA) monitoring network. NZTA has comprehensive coverage across New Zealand.
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.

Table ID 98426
Data type Table
Row count 828
Services Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Natural sources of particulate matter, 2000–16

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Creative Commons Attribution 4.0 International

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1703
11
Added
16 Oct 2018

This dataset was first added to MfE Data Service on 16 Oct 2018.

Particulate matter (PM) is made up of solid and liquid particles in the air. It is grouped according to its size – PM10 is less than 10 micrometres (µm) in diameter; PM2.5 is less than 2.5 µm in diameter. Health effects from exposure to PM include lung and cardiac disease, and premature death.
Natural sources of PM include sea salt, dust (airborne soil, also called crustal material), secondary sulphate, pollen, black carbon from wild fires, and volcanic ash. There is little evidence that sea salt particles themselves are harmful (World Health Organization (WHO), 2013) although whether sea salt that has interacted with urban air pollutants is harmful is not known. PM can also be produced by human activities, such as dust from construction or unsealed roads, but this is not considered natural because it comes from human activity.
Natural sources of PM are important because although they cannot be managed they still contribute to ambient concentrations, which are subject to the National Environmental Standards for Air Quality (NESAQ). Exceedances of the NESAQ occur when the 24-hour average PM10 concentration exceeds 50 micrograms per cubic metre (µg/m3). There is no NESAQ for PM2.5 exposure, so we report on exceedances of the WHO 24-hour average PM2.5 concentration guideline (25 µg/m3).
We report on data from nine sites from 2005–16 and report only on sea salt for natural PM because other sources of natural PM, such as dust and sulphate, can be generated by humans as well. We were not able to separate the natural from human-generated contributions. Analysis of particle size, composition, and sources in New Zealand shows that sea salt made the largest contribution to natural PM.
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.

Table ID 98425
Data type Table
Row count 13484
Services Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Air pollutant emissions

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2151
32
Added
16 Oct 2018

This dataset was first added to MfE Data Service on 16 Oct 2018.

An emissions inventory provides information on the amount of key air pollutants that are released into the atmosphere for a given location over a given time period. This enables us to identify sources of pollutants. By understanding the amounts that different sources contribute, air quality can be better managed and modelled.
We evaluated emissions for five key pollutants for 2015, the most-recent year that data were readily available: particulate matter (PM) less than 10 micrometres in diameter (PM10), PM less than 2.5 micrometres in diameter (PM2.5), carbon monoxide (CO), nitrogen oxides (NOx), and sulphur dioxide (SO2), because they are the most important pollutants in New Zealand.
The grouped sources include: energy-related activities, construction dust, road dust, industrial process emissions (non-combustion), agriculture (emissions from animal housing), vegetation fires (burning agricultural residue and biomass burning), and incinerating of hazardous waste.
Only human-generated emissions were included in this emission inventory. No updated data for residential wood burning were available and was assumed to be the same as the 2013 national inventory.

Table ID 98424
Data type Table
Row count 26
Services Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed
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