aferster

It has been long known that air pollution causes harmful health effects in people. But scientists have only recently begun to uncover some of the mechanisms behind this causal relationship, a necessary step in understanding how to best regulate air pollution and protect human health. One key mechanism that EPA-funded research helped identify is oxidative stress. Though it is the subject of scores of scientific papers, finding a single, comprehensible definition of the term is a surprisingly arduous task. During an October visit to the Southern California Particle Center, I asked three scientists to define oxidative stress in the context…

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