Q. With reference to chromium contamination, consider the following statements:
1.Tanneries can be a source of chromium contamination in soil and groundwater.
2.The WHO provisional guideline value for total chromium in drinking water is 0.05 mg/L.
Which of the statements given above are correct?
Answer: C
Notes:
Explanation:
- Statement 1 is correct: Tanneries use chromium compounds during leather processing. Improper treatment or disposal of tannery waste can contaminate soil and groundwater with chromium.
- Statement 2 is correct: The WHO provisional guideline value for total chromium in drinking water is 0.05 mg/L, equivalent to 50 µg/L (50 ppb).
Source- TH
