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Apr 29, 2012
Air quality improving, but still failing, lung association reports..."F" grade
San Diego's air quality has grown steadily cleaner in recent years, but the county still earned an "F" grade on the American Lung Association's annual "State of the Air Report."
Please continue reading at:
http://www.nctimes.com/news/local/sdcounty/region-air-quality-improving-but-still-failing-lung-association-reports/article_129540de-6baa-5e68-a46f-0f9b481d305d.html
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