River water quality, heavy metals, state, 2015-2017
New Zealand's Environment Reporting Series: The Ministry for the Environment and Statistics New Zealand
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: - concentrations of dissolved copper and zinc measured at monitoring sites for the three-year period from 2015 to 2017 - how these compare to the default guideline values for the protection of 95 percent of species 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.
National Institute of Water and Atmospheric Research, Auckland Council, Greater Wellington Regional Council and Christchurch City Council
Creative Commons Attribution 4.0 New Zealand
Urban streams in Auckland, Wellington and Christchurch