Small amounts of nitrogen are a natural component of healthy rivers. Nitrogen is transferred from land to water and is cycled through different forms, which can have different effects. Moderate concentrations of nitrate can cause weeds and algae to grow too fast. High concentrations of ammoniacal and nitrate nitrogen can be toxic to fish and other aquatic animals.
This dataset relates to the "River water quality trends: nitrogen" measure on the Environmental Indicators, Te taiao Aotearoa website.
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|1.||Ammoniacal nitrogen trends||202 KB||
|Category||Environmental Reporting > Freshwater > River water quality|
|Tags||water, New Zealand, WATER-Quality|
|Metadata||ISO 19115/19139, Dublin Core|
|Data type||Vector point||Feature count||77|
|Attributes||nemarid, rcid, srcid, river, location, sitename, nzmge, nzmgn, nzreach, OBJECTID_1, F1, Period, sID, npID, T_Median, T_n, T_tau, T_sl, T_S, T_D, T_varS, T_Z, T_p, T_MedianAnnualSenSlope, T_PropObs, T_nFlowAdj, T_tauFlowAdj, T_slFlowAdj, T_SFlowAdj, T_DFlowAdj, T_varSFlowAdj, T_ZFlowAdj, T_pFlowAdj, T_MedianAnnualSenSlopeFlowAdj, T_PropObsFlowAdj, T_Frequency, N_pFlowAdj, N_p, N_Median, N_MedianAnnualSenSlope, N_Lci, N_Uci, N_IncluZero, N_MedianAnnualSenSlopeFlowAdj, RSKSE_percentFlowAdj, N_LciFlowAdj, N_UciFlowAdj, N_IncluZeroFlowAdj, NZReach_1, CLIMATE, SRC_OF_FLW, GEOLOGY, LANDCOVER, SoF, Import, ImportFlowAdj|
|Services||Vector Query API, Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed|