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Question
According to the Central Pollution Control Board, among air pollutants, particulate matter of what size (in micrometers diameter) is responsible for greatest harm to human health?
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Solution
The correct option is B 2.5 or less
The Central Pollution Control Board of India, established in 1974 is a statutory organisation under the Ministry of Environment, Forest and Climate Change. It coordinates the activities of the State Pollution Control Boards by providing technical assistance and guidance and also resolves disputes among them. It is the apex organisation in the country in the field of pollution control. According to this organisation, particulate matter of diameter 2.5 micrometers or less is of greatest harm to human health. It leads to high plaque deposits in arteries, causing vascular inflammation and atherosclerosis – hardening of the arteries that reduces elasticity, which can lead to heart attacks and other cardiovascular problems.
The Central Pollution Control Board of India, established in 1974 is a statutory organisation under the Ministry of Environment, Forest and Climate Change. It coordinates the activities of the State Pollution Control Boards by providing technical assistance and guidance and also resolves disputes among them. It is the apex organisation in the country in the field of pollution control. According to this organisation, particulate matter of diameter 2.5 micrometers or less is of greatest harm to human health. It leads to high plaque deposits in arteries, causing vascular inflammation and atherosclerosis – hardening of the arteries that reduces elasticity, which can lead to heart attacks and other cardiovascular problems.
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