Teaching UGC NET Mock Test Series 2025 (Paper 1 & 2) Environmental Science Impact Assessment and Management National Acts and Laws
According to IS 3307 - 1965, the maximum limit for chloride (expressed as Cl) in waste water effluent to be discharged on land for irrigation purpose is
1
2100 mg/L
2
600 mg/L
3
1000 mg/L
4
200 mg/L