Smoke from wildfires in northwestern Canada has converged over Iowa and is expected to impact air quality over the weekend.

Wildfire smoke carries large amounts of particulates and gases. These can act as ozone precursors, causing air to exceed the ...

"We know these sites; we know how contaminated these sites are." US agency sparks backlash after delaying action on curbing ...

The Iowa Department of Natural Resources says the state's air quality could remain compromised until midnight on Saturday, ...

Particulates are the microscopic bits of burned materials that become suspended in wildfire smoke. Their extremely small size means they can be inhaled into the deepest recesses of the lungs.

The National Weather Service reported an air quality alert at 2:45 p.m. EDT on Tuesday in effect until Wednesday at 2:45 p.m.

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 ...

We've long known both natural and man-made processes produce particulates that can alter atmospheric conditions and, in some cases, be a human health hazard. Now science is giving us some ...

Yes, particulates can be reduced by using a urea-based system (commonly referred to as selective catalyst reduction or SCR), but these complex units are not commonly found on older diesel-fueled ...

News Particulates matter: 10 questions for a Stanford researcher on the health hazards of wildfire smoke Discussing health, wildfires and how unprecedented smoke is affecting us long term ...

The size of particulates smaller than 2.5 microns in diameter allows those particulates to remain airborne for long periods, to penetrate buildings, to be inhaled easily and to reach and ...

Tracking down particulates Date: December 14, 2010 Source: Fraunhofer-Gesellschaft Summary: Wood-burning stoves are enjoying a surge in popularity. But burning biomass releases fine dust particles ...