organic pollution parameters

Quality limits for drinking water

Ammonium ( ${\text{NH}}_4^{+}$ )

0.5 mg/L

Nitrate ( ${\text{NO}}_3^{-}$ )

50 mg/L

Phosphate ( ${\text{PO}}_4^{3-}$ )

500 μg/L

5-day Biological Oxygen Demand (DBO₅)

3 mg_O2/L