Various elements are monitored in wastewater to determine water quality and also contamination of the water system by stormwater.
TKN: Total Kjeldahl Nitrogen
It corresponds to the nitrogen (N) that is input to the wastewater treatment plant. It corresponds to the ammoniacal nitrogen (NH3 / NH4+).
NO2- : Nitrites
Anions resulting from the biological treatment of NTK
NO3- : Nitrates
Anions resulting from the biological treatment of nitrites
NG : Global Nitrogen Level
It corresponds to the sum of NTK, NO2- and NO3-.
Pt: Total Phosphorus
Concentration of phosphorus, element responsible for the eutrophication of soils.