Question

Which of the following conditions in drinking water causes methemoglobinemia ?

• A. > 50ppm of load
• B. > 100 ppm of sulphate
• C. > 50 ppm of chloride
• D. > 50 ppm of nitrate

Answer 1

Answer: (D)

Concentration of nitrate > 50 ppm in drinking water causes methemoglobinemia