Today we have a broad area of moderate air quality readings for particulates which continue to be coming from Texas and Arkansas and moving northeastwardly through Kentucky and the Ohio River Valley. The AQI warnings in the image on the…

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Haze from Texas and Arkansas moves northeastward;Fires in the Northwest

Today’s air quality is silmilar to yesterdays. Code Orange/Red (Unhealthy for Sensitive Groups/Unhealthy) and Code Yellow/Orange (Moderate/Unhealthy for Sensitive Groups)Ozone AQI levels were reported in Central and Southern California, and the Mississippi Valley states along the Gulf of Mexico (AQI…

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Code Orange/Red Ozone in Central/Southern California; Haze over Texas and Mississippi Valley States; Fires in Oregon Continue

Ozone is in the Code Orange (Unhealthy for Sensitive Groups) range in Central and Southern California this afternoon, as shown below (AQI map for California on upper left, courtesy of AIRNow). PM2.5 air quality is Code Green (Good) across much…

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Code Orange Ozone in Central/Southern California; Haze in Southeast and Mississippi Valley; Fires in Oregon

Smoke from BC fires was observed to be sneaking into the Great Lakes region through Minnesota today (left). MODIS Terra shows the elevated AOD in this region and also in Western Quebec (right; images are overlaid with current AQI). We…

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Unhealthy levels of PM2.5 persists in Alberta

Air quality continued to deteriorate today in the Eastern U.S. under the influence of a Bermuda high pressure system. As shown by the AQI maps, (upper panels below), both PM2.5 and ozone were in the Code Yellow (Moderate) range across…

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Code Orange Air Quality Across the Eastern U.S.