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由 dmitry 于 周四, 2008-05-01 10:14 提交。
Led by Los Angeles, Dozens of U.S. Cities Have Unsafe Levels of Pollution. Up to 125 million Americans are breathing air that puts their health at risk, a report released Thursday by the American Lung Association estimates.
The report shows that dozens of U.S. cities and counties regularly have unsafe levels of particulate and ozone smog pollution. Such pollution is a risk factor for worsening illness in people with asthma and other diseases but could also pose risks to healthy people, the report states.
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