Which of the following statements is/are correct regarding groundwater contamination in India? 1. Excess fluoride in drinking water can lead to skeletal fluorosis and dental decay. 2. The national drinking water limit for fluoride is 1.50 mg/L. 3. Arsenic contamination is predominantly reported in southern Indian states like Kerala and Tamil Nadu. Select the correct answer using the code below: |ForumIAS

[A] 1 and 2 only

[B] 2 and 3 only

[C] 1 and 3 only

[D] 1, 2, and 3

Answer: A

Notes:

Explanation:

Excessive fluoride intake causes skeletal fluorosis and dental problems, especially in children.
The national drinking water limit for fluoride is 1.50 mg/L, while the BIS limit in India is 1.0 mg/L.
Arsenic contamination is found mainly in eastern and northern states like West Bengal, Bihar, Jharkhand, and Uttar Pradesh, not southern states.