Coarse particulate matter

Coarse particulate matter refers to tiny particles suspended in the air that are larger than most pollutants but smaller than visible dust. These particles typically have a diameter between 2.5 and 10 micrometers, small enough to be inhaled but large enough to usually settle out of the air relatively quickly. They often originate from sources like construction activities, road dust, pollen, and pollen. Exposure to coarse particles can cause respiratory issues, especially in sensitive groups, and can contribute to overall air quality concerns. Monitoring and controlling these particles helps protect public health and improve environmental conditions.