Air pollution below EPA standards linked with higher death rates

A new study by researchers at Harvard T.H. Chan School of Public Health
found that death rates among people over 65 are higher in zip codes with
more fine particulate air pollution (PM2.5) than in those with lower
levels of PM2.5. It is the first study to examine the effect of soot
particles in the air in the entire population of a region, including
rural areas. The harmful effects from the particles were observed even
in areas where concentrations were less than a third of the current
standard set by the Environmental Protection Agency (EPA).

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