Assertion: pm | /r/HasProperty | particulate matter
Facets:
Source sentences:
text: Description PM 10 is particulate matter 10 micrometers or less in diameter, PM 2.5 is particulate matter 2.5 micrometers or less in diameter.
text: PM is also called Particulate Matter or particle pollution, which is a mixture of solid particles and liquid droplets present in the atmosphere.