July 13, 2008

Poor Air Quality in Northern California continues, light haze in the east

Well, more of the same in California, with unfortunately poor air quality in the northern portion of the state. You can see the evolution of PM2.5 AQI to the left (EPA AIRNow), where one monitor between Eureka and Redding reached code purple (very unhealthy air quality) until 3 PM PDT. The elevated PM levels, again nicely captured by both GASP and MODIS. The image to the right is today's MODIS Terra AOD. Also noteworthy are the ozone code red conditions in coastal central California just south of Monterey.

The left image below is a close up of northern California showing the MODIS AQUA (UW MODIS Today) google earth view, AIRNOW PM2.5 AQI, which for some reason is missing the monitors in northern California, and MODIS Fire locations (NOAA NWS). Meanwhile in the east coast we continue with the primarily moderate air quality conditions, and haze can be seen east of the frontal system in Maryland and the eatern portions of Virginia, and the Carolinas. In the central US, particulate air quality remains good as poined out yesterday, despite continued presence of smoke from the California fires, according to today's HMS analysis.

Posted by Ana Prados at July 13, 2008 8:00 PM

The location in N. Cal with the unhealth air is Weaverville. It is a very small town with multiple fires around it.

Posted by: Chris Brown at July 13, 2008 11:39 PM

Thanks Chris !

Posted by: ana prados at July 16, 2008 10:35 PM
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