Environmental Chemistry - Result Question 21
####21. The condition for methemoglobinemia by drinking water is
(a) $>50$ ppm nitrate
(b) $>50$ ppm chloride
(c) $>50$ ppm lead
(d) $>100$ ppm sulphate
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Solution:
- According to EEC (European Environment Commission), excess of $NO _3^{-}$( $>50 ppm$ ) in drinking water may lead to methemoglobinemia (‘Blue baby syndrome’). It also may cause stomach-cancer.
