Nitrate, ammonia and dissolved reactive phosphorus concentrations, NGMP sites, 2004–13

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Creative Commons Attribution 3.0 New Zealand

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461
21
Added
11 Jan 2016

This dataset was first added to MfE Data Service on 11 Jan 2016.

"At high concentrations, nitrate–nitrogen may have health impacts where it is for untreated drinking water, and it is also plant nutrient which can contribute to excessive plant and algae growth, potentially damaging the ecological health of rivers and lakes.
Ammoniacal nitrogen can be toxic to fish, animals and people at moderate concentrations.
Nitrate can be an indicator of general groundwater degradation as often it is accompanied by other pollutants from human activities, such as faecal pathogens and pesticides.

Dissolved reactive phosphorus is a plant nutrient which can contribute to excessive plant and algae growth, damaging the ecological health of rivers and lakes if it enters surface water.
Surplus phosphorus can originate on land from fertilizer or animal manure, where it can be drained or leached into groundwater as dissolved reactive phosphorus. It can also occur naturally in aquifers as a result of water–rock interaction.

This dataset relates to the "Groundwater quality: phosphorus" and "Groundwater quality: nitrogen" measures on the Environmental Indicators, Te taiao Aotearoa website. "

License

Creative Commons Attribution 3.0 New Zealand

You may use this work for commercial purposes.

You must attribute the creator in your own works.

Technical Details
Layer ID 52707
Data type Vector point
Feature count 101
Attributes GGW_Feature_ID, GGW_Name, DRP, NH4N, NO3N, P_val, P_value, RSKSE
Services Vector Query API, Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed
History
Added 11 Jan 2016
Last updated 11 Jan 2016
Revisions 2 - Browse all revisions
Current revision Imported on Feb. 18, 2016 from File Geodatabase in NZGD2000 / New Zealand Transverse Mercator 2000.

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