Wednesday, March 28, 2007

EPA science advisers reiterate need for tougher smog standard

EPA's independent science advisers have sent EPA chief Steve Johnson a letter reiterating that "Ozone Panel members were unanimous in recommending that the level of the current primary ozone standard should be lowered from 0.08 on to no greater than 0.070 ppm."

This really tees up a classic clash: science versus politics, since industry groups are on record opposing changes to the current ozone standard.

http://www.epa.gov/sab/pdf/casac-07-002.pdf

The recommendations come on the heels of strong recommendations from the World Health Organization to strengthen air quality guidelines for ozone. The WHO report, issued in full on March 23, 2007, recommends an air quality guideline of .051 ppm ozone, 8-hour average, to protect against respiratory effects and premature deaths due to ozone.
http://www.euro.who.int/Document/E90038.pdf

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