Posted by Sadie from ? (184.108.40.206) on Wednesday, September 10, 2003 at 10:49AM :
In Reply to: check out U.S. air pollution levels posted by Sadie from ? (220.127.116.11) on Wednesday, September 10, 2003 at 10:44AM :
Explore away - If you click on "ozone levels," then under the U.S. map under "National Ozone levels," click "Yesterday's," you will see a time-course (every 20 min.) assessment of the U.S. ozone levels on a U.S. map for yesterday. Notice how bad the ozone is near Houston-Galveston, where there are all those oil refineries....
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