Maximum permissible chloride level is -: (A) 200 mg\/litre, (B) 300 mg\/litre, (C) 500 mg\/litre, (D) 600 mg\/litre
Answer is D. Park's textbook of preventive and social medicine 23rd edition. *The standard prescribed for chloride is 200 mg/l,the maximum permissible level is 600mg/l.