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Particulate Matter

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Definition: Particles of any solid substance, generally under 30 microns in size, often noted as PM30. There is special concern with PM1 which can get down to PULMONARY ALVEOLI and induce MACROPHAGE ACTIVATION and PHAGOCYTOSIS leading to FOREIGN BODY REACTION and LUNG DISEASES.     
Pharmacological Action Air Pollutants
Examples Coal Ash; Dust; Smog; Smoke 		Other names Pollutants, Particulate Air; Particulate Matter, Ambient; Particulate Matter, Airborne; Particulate Air Pollutants; Ambient Particulate Matter; Airborne Particulate Matter; Air Pollutants, Particulate

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Sources: NLM Medical Subject Headings, NIH UMLS, Drugs@FDA, FDA AERS original data copyright United States Government. No endorsement implied. Last modified 6/6/2012
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