The alert comes as people in other states have been told to monitor themselves for symptoms such as unusual fatigue and ...

On Saturday at 3:02 p.m. the National Weather Service reported an updated air quality alert in effect until Sunday at ...

On Saturday at 11:14 a.m. the National Weather Service reported an air quality alert in effect until 11:15 p.m. for Northern ...

Particulates released in urban fires differ from those generated by forest fires. In urban fires, particulates come from the vast array of manmade materials found in the built environment.

Even heavier particulates, including ash and dark soot, may accumulate in the HVAC duct-work, on top of the furnaces, inside compressors, and around coils.

Particulates are released by a wide range of sources, both mobile and stationary. Road dust is by far the No. 1 source of PM10 emissions in the United States, and the second highest source of PM2 ...

Smoke permeates everything and impacts everyone. The visible stew of carbon and particulates typically from emission sources travels in the air, shrouds buildings, suffocates birds, and penetrates ...

Particulates and residue can be detected with this technique at very small localities, with a minimum IR spot size of 10 to 15 micrometers (µm). Applying these techniques to pharmaceuticals ...

Particulates are essentially small, even tiny, pieces of solid objects. Much of the texture and depth of smoke seen throughout the fire are the result of particulates.

Particulates added to the air from non-exhaust emissions include PM10, which are less than 10 micrometres in size, and PM2.5, which are less than 2.5 micrometres across.