particulate matter :

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particulate matter

  • n  a small discrete mass of solid or liquid matter that remains individually dispersed in gas or liquid emissions (usually considered to be an atmospheric pollutant)
News & Articles

  • Air freshener: Federal program funds clean-air initiatives for diesel vehicles
    It’s 7 a.m. and you’re stuck behind a school bus sputtering enough diesel exhaust to make you cough. These fumes are wrought with microscopic soot known as particulate matter (PM), as well as toxins like nitrous oxide (NOx). A component of smog, PM can line the lungs and contribute to serious respiratory and heart problems, especially for children, the elderly and those with allergies or asthma ...
    June 11, 2013 - Mountain Xpress
  • EHD cancels air health alert due to wildfire smoke
    The New Mexico Environmental Health Department’s Air Quality Division canceled a health alert Sunday after wildfire smoke caused elevated levels of particulate matter. The predicted weather conditions changed and smoke from the Thompson Ridge wildfire is not expected to come into the Albuquerque area, the agency said.
    June 10, 2013 - KOAT Albuquerque

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