News & Analysis as of

USEPA Air Pollution National Ambient Air Quality Standards

Snell & Wilmer

USEPA Proposes New Particulate Matter Air Quality Standard

Snell & Wilmer on

The U.S. Environmental Protection Agency (USEPA) announced on January 6, 2023, that it is proposing to modify the National Ambient Air Quality Standard (NAAQS) for Fine Particulate Matter (PM2.5). The current annual primary...more

Snell & Wilmer

Breaking News of a Particulate Matter Regarding Air Quality

Snell & Wilmer on

The U.S. Environmental Protection Agency (“USEPA”) announced yesterday that it is proposing to retain the current National Ambient Air Quality Standards (“NAAQS”) for fine particulate matter (“PM2.5?) and course particulate...more

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