The health benefits of reduced tropospheric ozone in California.

Journal of the Air & Waste Management Association, July, 2006 by Ostro, Bart D.; Tran, Hien; Levy, Jonathan I.

ABSTRACT

Californians are exposed daily to concentrations of ozone ([O.sub.3]) that are among the highest in the United States. Recently, the state adopted a new 8-hr ambient standard of 0.070 ppm, more stringent than the current federal standard. The new standard is based on controlled human studies and on dozens of epidemiologic studies reporting associations between [O.sub.3] at current ambient levels and a wide range of adverse health outcomes. Clearly, the new [O.sub.3] standards will require further reductions in the precursor pollutants and additional expenditures for pollution control. Therefore, it is important to quantify the incremental health benefits of moving from current conditions to the new California standard. In this paper, a standard...

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