September 29, 2017

Low PM 2.5 continues

Air quality today was pretty good, with mostly Code Yellow (Moderate) levels of PM 2.5 appearing in the Mississippi Valley, the Southeast, the Pacific Southwest, and the Mid-Atlantic (AirNow, top left). There was almost no some coverage in the country, which may be partially due to the end of the wildfires in the Pacific Southwest and the Rocky Mountain States which burned for weeks continuously. There was only some smoke in the California and Nevada, as seen in NOAA's HMS map, top right. This smoke didn't seem to cause any major issues in air quality in this area. Some of this smoke, however, was captured in NASA's MODIS Terra images, bottom left. Finally, ozone levels were very low, with only some Code Yellow levels appearing in the Mid-Atlantic and the Southeast. These low levels of ozone should continue as the Autumn season comes.

Posted by mglover at September 29, 2017 6:33 PM
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