PM
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EPA Proposes Significant Change to Particulate Matter Air Quality Standards

On January 6, 2023, EPA announced that is was issuing a proposed rule to lower the National Ambient Air Quality Standards (“NAAQS”) for fine particulate matter (“PM2.5”), also referred to as soot. Continue reading
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EPA Retains Existing Air Quality Standards for Particulate Matter
On December 7, 2020, EPA completed its five-year review of the National Ambient Air Quality Standards (“NAAQS”) for Particulate Matter (“PM”), a criteria air pollutant under the Clean Air Act. In a final action set to be published in the Federal Register in the coming days, EPA decided to retain the current NAAQS for PM,… Continue reading
