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Most Polluted Cities in the U.S.

Started by wardslave · 1 year ago

The American Lung Association just released the 2007 State of the Air, an annual report examining air pollution levels in American cities and counties. The three principal reporting categories include short-term particle pollution (24-hour PM2.5), year-round particle pollution (Annual PM2.5), and ozone content. This year’s dishonor for most polluted city goes to the Los Angeles […] ... Continue reading »

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