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Particulate Matter (PM)

Particulate matter, or PM, is the term for particles found in the air, including dust, dirt, soot, smoke, and liquid droplets.

Particulate Matter Fact Sheet

PM10 and PM2.5 Attainment Fact Sheet

PM 2.5 General Information

PM2.5 Planning Efforts

PM10 Redesignation Request and Limited Maintenance Plan for the City of New Haven (PDF, 1567K)

National Ambient Air Quality Standards 2.5EPA's 2006 Proposed PM

Air Quality Trends - Particulate Matter

SIP Revisions and Other State Air Quality Plans

Related Information

National Ambient Air Quality Standards (NAAQS)

Daily Air Quality Index