Toxic smoke and dangerous particulate pollution are spreading far beyond the flames, leaving air quality at unhealthy levels ...

The advisories impact large areas of Idaho, Oregon, Montana and Washington, lasting through the end of January.

Wildfires are tearing through thousands of acres in Los Angeles County in California, as strong Santa Ana winds stoke the blazes.

Calculating air pollution from wildfires and other events has become more complicated. That doesn’t mean it’s necessarily more accurate.

CDPHE launched an updated map that overlays geography, health conditions and starts to gauge what parts of Colorado are most affected by pollution and environmental factors.

There are many pollutants of concern in wildfire smoke,” including ozone, carbon monoxide and other toxic gases, says pediatrician Debra Hendrickson.

Air quality across parts of California is deteriorating to hazardous levels as strong winds drive rapid wildfire spread and stir up heavy dust.

When the Great Lakes Water Quality Agreement was passed in the 1970s, eutrophication was the big problem. Eutrophication occurs when too many nutrients enter a body of water, increasing the amount of ...

Van Orman encouraged students to monitor the United States Air Quality Index via the government’s AirNow ... We also use different external services like Google Webfonts, Google Maps, and external ...

[Screenshot: via NASA FIRMS] The second online mapping tool is the Fire Information for Resource Management Systems map, or FIRMS, which uses data from the Forest Service of the United States ...

California fire live: The death toll from wildfires in Los Angeles has risen to ten from seven, Los Angeles County's Medical Examiner announced in an update late on Thursday.