Fine Particulate Matter

Fine Particulate Matter, or PM2.5, refers to tiny particles in the air that are 2.5 micrometers or smaller in diameter—much thinner than a human hair. These particles are produced by combustion processes like vehicle engines, industrial activities, and wildfires. Because of their small size, PM2.5 particles can easily penetrate deep into the lungs and even enter the bloodstream, posing health risks such as respiratory and cardiovascular issues. Monitoring and controlling PM2.5 levels is important for protecting public health and ensuring air quality standards are met.