Moderate PM2.5 AQI (top left image) levels experienced today in Oklahoma, Iowa, Wisconsin, Minnesota and western Illinois were due to a strong overnight temperature inversion caused by the surface high-pressure system, (top right image, Google Earth overlay of “true” color…

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Moderate AQI in Central US and Air Quality Advisory Day in Minnesota

Very early in the morning moderate to unhealthy levels of PM2.5 were present in Nebraska, Oregon and Idaho/Montana. As the day progressed air quality improved to moderate levels in Central US while in the Northeast air quality remained in the…

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Moderate PM2.5 levels in Central and Northeastern US; Fires in the South

Good air quality conditions were reported throughout the nation today. Code Yellow (Moderate) PM2.5 levels (top left, courtesy AIRNow) were experienced in only a couple areas of the nation today. The only area to experience Code Orange (Unhealthy for Sensitive…

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Good Air Quality Throughout Nation, Fires in South

Today Oregon started the day experiencing poor air quality with levels of PM2.5 ranging from Moderate to Unhealthy but in the afternoon air quality came back to good conditions (top, left). Air quality also improved since yesterday in the Midwest…

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Air quality improves in the Midwest and South

Agricultural fires continue for second day in a row in the southeastern US. The smoke was captured by the MODIS sensor in the AQUA satellite, when it overpassed the states of Lousiana, Alabama, Mississippi, Georgia, and Florida (top left image)….

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Agricultural Fires in Southeastern US, Code Purple Ozone AQI in New York