This is a significant defeat for EPA, the EnviroWackies, and Obozo. More from Steve Milloy:
IOW, when there IS no problem, the EPA will manufacture one! (That happens to be precisely the methodology behind Gunnrunner/Fast & Furious, by the way.)
The above-described exposure to 60 ppb produced declines in forced-vital-capacity and forced-expiratory-volume-at-one-second on the order of 1 percent to 2 percent more than exercise in zero ppb ozone. Not only is this 1 percent to 2 percent change a long way from clinically significant declines in respiratory function, which start at about 15 to 20 percent, but respiratory measurement isn’t sufficiently reliable to detect such small differences.
...the comparison or “control” ozone exposure of zero ppb is faulty because it is not one that occurs in nature. Natural emissions of ozone-forming pollutants from vegetation, lightning and occasional transport of ozone to ground level from the stratosphere all contribute to background ozone levels as high as 50 ppb
That is to say, walking around in your yard, with all that grass and flowers and stuff, is DANGEROUS!!! You could DIE!!!--by EPA standards.
As usual, the question is 'what is reality?'. EPA would propose unrealistic standards, arguably more restrictive than found naturally; and their design-of-experiment methods are neither reliable nor realistic, either.
Conclusion: EPA spends too much. Cut it by 75%.