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Research Links Cleaner Air, Improved Children's Health

Researchers who have monitored the impact of contaminated air around Los Angeles say improvements in air quality have led to better health among children. The 20-year study by researchers from the University of Southern California, published this week in The New England Journal of Medicine, included more than 2,000 children between the ages of 11 and 15. They lived in four inland cities where wind patterns and topography tend to trap air pollution, and the coastal city of Long Beach, home...

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