PM2.5 Explained: What It Is, Health Effects, Sources and How It Affects AQI
PM2.5 is one of the most important air pollutants for understanding both air quality and health. These microscopic particles are 2.5 micrometres or smaller in diameter—small enough to travel deep into the lungs, with some components able to enter the bloodstream. PM2.5 can come directly from sources such as vehicle exhaust, industry, fuel and biomass … Read more