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Additional
Particulate Matter
EPA Glossary of Climate Change Terms
Download this dictionary
Particulate matter (PM)
Solid particles or liquid droplets suspended or carried in the air (e.g., soot, dust, fumes, mist). See
aerosol
,
sulfate aerosols
.
Provided as a public service by the
U.S. Environmental Protection Agency
. Reference list
click here
.