Question

According to the Central Pollution Control Board, particles that are responsible for causing great harm to human health are of diameter

• A. 2.50 micrometers
• B. 5.00 micrometers
• C. 10.00 micrometers
• D. 7.5 micrometers

Answer 1

The correct option is A 2.50 micrometers

According to Central Pollution Control Board (CPCB), particulate size 2.5 micrometers or less in diameter (PM 2.5) are responsible for causing the greatest harm to human health. These fine particulates can be inhaled deep into the lungs and can cause breathing and respiratory symptoms, irritation, inflammations and damage to the lungs and premature deaths.