What is the difference between PM2.5 and PM10 with respect to the atmospheric pollutants?

The difference between PM 10 and PM 2.5 is size. But let me back up. “PM” refers to particulate matter—particles in the air. Those particles are things like organic dust, airborne bacteria, construction dust, and coal particles from power plants (for example, check out this study from researchers in Shanghai who analyzed what those particles are […]


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