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Old 09-12-2011, 10:18 AM   #78
Lamplighter
Person who doesn't update the user title
 
Join Date: Jun 2010
Location: Bottom lands of the Missoula floods
Posts: 6,402
EPA Green Book air quality 1978 - 2010

The EPA Clean Air Act was established in 1974

Non-attainment = failed to mean standard
W = whole county
P = partial county

What happened in 2004 in OH, PA, WV, and many other states ?
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