July 5, 2018

Ozone and PM 2.5 levels rise

PM 2.5 levels ranged from Code Yellow (Moderate) to Code Red (Unsafe) levels today, with these levels being spread around the Mid-Atlantic, the Mississippi Valley, the Plains States, the Southeast, the Rocky Mountain States, the Pacific Northwest, and the Pacific Southwest (AirNow, top left). This elevated PM 2.5 was at least somewhat due to smoke in the Northern parts of the nation, as shown in NOAA's HMS map, top right. This smoke was captured in NASA's MODIS Terra images, bottom left. Ozone levels were also from Code Yellow to Code Red levels, mostly being seen in the Eastern part of the nation.

Posted by mglover at July 5, 2018 9:00 PM
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