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Particulate Matter (PM) Pollution

Proposal to Retain the National Ambient Air Quality Standards for Particulate Matter (PM)

On April 14, 2020, after carefully reviewing the most recent available scientific evidence and technical information, and consulting with the Agency’s independent scientific advisors, the EPA is proposing to retain, without revision, the existing primary (health-based) and secondary (welfare-based) National Ambient Air Quality Standards (NAAQS) for particulate matter.

Read the proposal published in the Federal Register.  A summary fact sheet is available below.

Hoja informativa NAAQS-PM

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