Question

Write standard limit of BOD for inland discharge of effluent.

Answer 1

BOD is measured by incubating the water sample at 200 C which is to simulate the organic degradation in nature. The purest form of river water is expected to have BOD levels below 1 mg/L. A water body polluted to an average level has a BOD between 2 to 8 mg/L and highly polluted water body will exceed BOD of 8 mg/L.