The proposal has been highly controversial. The American Petroleum Institute (API) has testified that, "Without a clear certain scientific basis for selecting a different numeric standard, the ozone standard need not be changed now." and urged the Administrator not to pursue the proposal. API said EPA's own studies failed to support a lowering of the ozone standards. On the other hand, environmental organizations have pointed out that strengthening the National Ambient Air Quality Standard (NAAQS) for ozone pollution from 75 to 60 parts per billion (ppb) would reduce premature death rates by 60-fold and reduce asthma cases 50-fold, according to analyses by EPA [See WIMS 2/10/10].
Access EPA's 22-page court filing (click here). Access EPA's ground-level ozone regulatory website for complete background (click here). Access a release from Sen. Inhofe (click here). Access a release from NRDC (click here). Access a release from Earthjustice (click here).