Question

Maximum prescribed limit of $Cu$ in drinking water is:

• A. 2 ppm
• B. 1 ppm
• C. 3 ppm
• D. 5ppm

Answer 1

Answer: (C)

3 ppm

The Food and Nutrition Board(FNB) recommends dietary copper intakes for adults is 1.5-3.0 mg as Cu is an essential macronutrient.

If excess Cu in drinking water can cause gastrointestinal tract disturbances and chronic ingestion can cause liver toxicity.

Thus, the correct option is $C$