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Question
According to Central Pollution Control Board, air pollutants responsible for great harm have a size (in/mm) of
According to Central Pollution Control Board, air pollutants responsible for great harm have a size (in/mm) of
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Solution
The correct option is C 1.5 or less
Air pollutants
Air pollutants are substances which contaminate the air and degrade the air quality for breathing. The common air pollutants include harmful gases such as SO2, CO2, NOx,O3 as well as suspended particulate matter.
● The particulate matter having a size of 2.5 micrometres in diameter or less than that causes the most harmful impacts on human health.
● These fine particulates can easily penetrate deep into the lungs during inhalation and cause damage to the lungs.
● Additionally, they cause breathing and respiratory disorders, inflammation, irritation and premature death.
Final answer
(C) 2.5 or less
Air pollutants
Air pollutants are substances which contaminate the air and degrade the air quality for breathing. The common air pollutants include harmful gases such as SO2, CO2, NOx,O3 as well as suspended particulate matter.
● The particulate matter having a size of 2.5 micrometres in diameter or less than that causes the most harmful impacts on human health.
● These fine particulates can easily penetrate deep into the lungs during inhalation and cause damage to the lungs.
● Additionally, they cause breathing and respiratory disorders, inflammation, irritation and premature death.
Final answer
(C) 2.5 or less
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