U.S. Air Quality

Moderate air quality in California, mostly good conditions everywhere else

Air quality conditions are mostly good around the nation. However, California has generally moderate conditions (code yellow). There are no significant haze or fire events in the country. The weather was particularly lovely in Maryland today (PM2.5<15.5 ug/m3).

Left: California PM2.5 AQI map (source: EPA AIRNow)
Right: Terra MODIS view of the nation (source: MODIS Today)