Q. Lead poisoning occurs when the lead content in water is (Solved)

1. 30 - 50 ppm

2. 300 - 500 ppm

3. 10 - 15 ppm

4. 3 - 5 ppm

5. 0.3 - 0.5 ppm

  • e. 0.3 - 0.5 ppm

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