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 PM_2.5 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