EPA may tighten smog rules - East Valley Tribune: Nation / World

EPA may tighten smog rules

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Posted: Wednesday, March 12, 2008 6:03 am | Updated: 9:51 pm, Fri Oct 7, 2011.

WASHINGTON - States and local officials across the country awaited word Wednesday on whether they will have to further cut air pollution to protect millions of people, especially the very young and the elderly, from respiratory illnesses.

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