Aug 14, 2009 | Glossary
Pollutant gases or particle directly emitted from a pollutant source.
Aug 14, 2009 | Glossary
Abbreviation for parts per million. A unit of concentration used to measure pollutant levels.
Aug 14, 2009 | Glossary
Acronym for Reasonably Available Control Technology.
Aug 14, 2009 | Glossary
Abbreviation for parts per billion. A unit of concentration used to measure pollutant levels.
Aug 14, 2009 | Glossary
Any material that exists as solid or liquid in the atmosphere. Particulate matter may be in the form of fly ash, soot, dust, fog, fumes, etc. Small particulate matter, or PM10, is less than 10 microns in size (about one-eighth the diameter of a human hair) and is too...
