This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Environment and health, Subject name: Social & Preventive Medicine
Maximum permissible chloride level is - 
Select and explain. 
A. 200 mg\/litre, B. 300 mg\/litre, C. 500 mg\/litre, D. 600 mg\/litre
D: 600 mg\/litre
Answer: D: 600 mg\/litre 
Explanation: 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.