Urban stream water quality - trends - 2008–15

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Creative Commons Attribution 3.0 New Zealand

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91
4
Added
24 Apr 2017

This dataset was first added to MfE Data Service on 24 Apr 2017.

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.

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.

File contains trend analyses by site for water quality indicators in Auckland, Wellington, and Christchurch over the period 2008–15.

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
Table ID 53598
Data type Table
Row count 217
Columns field_1, sID, npID, Median, n, tau, sl, S, D, varS, Z, p, MedianAnnualSenSlope, Lci, Uci, PropObs, Frequency, City, colcode, Urban_Landcover
Services Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed
History
Added 24 Apr 2017
Last updated 24 Apr 2017
Revisions 5 - Browse all revisions
Current revision Imported on April 25, 2017 from CSV .