Scientific Research

Air pollution exposure may hasten death, even at levels deemed 'safe,' study says

Air pollution exposure may hasten death, even at levels deemed 'safe,' study says

At a time when the Trump administration is moving to delay and dismantle air quality regulations, a new study suggests that air pollution continues to cut Americans’ lives short, even at levels well below the legal limits set by the U.S. Environmental Protection Agency.

The nationwide study of more than 60 million senior citizens linked long-term exposure to two main smog pollutants — ozone and fine particulate matter — to an increased risk of premature death.

The analysis found no sign of a “safe” level of pollution, below which the risk of dying early tapered off.

Harvard University scientists who conducted the study calculated that reducing fine particle pollution...

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