Home ยป Maximum permissible residual chlorine in treated water should be __________ mg/liter. Air Pollution MCQs Maximum permissible residual chlorine in treated water should be __________ mg/liter. December 29, 2021 4 Views Q. Maximum permissible residual chlorine in treated water should be __________ mg/liter. 0.001 to 0.010.2 to 0.32 to 35 to 10 Answer: Option 2
Which one of the following pollutant (or) pairs of pollutants is formed due to photochemical reactions?
The particulate which is emitted by combustion of petroleum in automobiles and which affects hemoglobin formation is