Botany - Environmental Issues Question with Solution | TestHub

According to Central Pollution Control Board, PM 2.5 are responsible for causing the greatest harm to human health as 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. PM 2.5 stands for a particulate matter which is 2.5 micrometers or less in diameter.