October 26, 2017

PM 2.5 and ozone levels rise along west coast

Air quality today stayed around mostly Code Yellow (Moderate) levels of PM 2.5, mostly appearing in the Pacific Southwest and the Plains States (Airnow, top left). There was also some Code Orange and Code Red (Unsafe for Sensitive Groups and Unsafe, respectively) seen on the US southern border. This elevated PM 2.5 was most likely due to smoke spread in this area, as seen in NOAA's HMS map, top right.
Ozone levels were also somewhat high today, with up to Code Red levels being seen in California, along the West coast, and along the US southern border (NOAA, bottom left). These heightened levels of ozone were most likely due to high temperatures in this area, as shown in weather.org's temperature map, bottom right. Temperatures got up to the nineties and even the hundreds in this region.

Posted by mglover at October 26, 2017 10:01 PM
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