PM2.5 Information and DocumentsContact: Robert irvine 517-648-7367Agency: Environment, Great Lakes, and Energy
Fine particulate matter (PM2.5) is tiny liquid or solid particles with a diameter less then 2.5 micrometers. PM2.5 is composed mainly of ammonium sulfate, ammonium nitrate, organic carbon, and smaller portions from elemental carbon and soil or crustal elements. PM2.5 comes from a variety of sources included burning, fugitive dust, and biogenic sources (from plants). PM2.5 can be emitted directly (primary) or react in the air to form particles (secondary). Respiratory and cardiac problems are directly linked to PM2.5 exposure. Children, older adults, and people with heart or lung diseases are especially susceptible to the health effects from PM2.5.
Currently, the monitors in the seven counties of Southeast Michigan around Detroit are monitoring attainment the annual and daily PM2.5 standards. EGLE is in process of requesting a redesignation of the area to attainment.