Landmark EPA-Funded Study Links Ozone, Mortality For First Time

A study released Nov. 16 links for the first time ground-level ozone concentrations to death rates, finding that a reduction of 10 parts per billion (ppb) of ozone could save an average of 4,000 lives per year. The study is likely to have major implications for EPA air quality standards, with environmentalists having already jumped on the findings to argue that the agency should consider tightening its 8-hour ozone standard. The landmark study by researchers at Yale and Johns Hopkins...