January 19, 2007
Moderate to Unhealthy AQI in Northern CA
Clouds again today over much of the US. In California, surface air quality worsened compared to yesterday
in the northen half of the state. Meanwhile, on the other side of the Atlantic, dense dust is still present in
northwestern Africa (lower right image) and according to the NAAPS forecast the dust has just reached the
northern tip of South America.
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