PM2.5

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Science› Energy

Renewable Energy

Particulate that is less than 2.5 microns in diameter.

Science› Energy› Renewable Energy

Solar Energy

Particulate matter with a mean aerodynamic diameter of 2.5 micrometers (0.0001 inch) or less. Particles less than this diameter can lodge deeply in the lungs. PM2.5 is one of the six criteria pollutants specified under Title I of the Clean Air Act.

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