Air quality rating sacle? What is the meaning and difference in the air codes issued for air?
For example what is the difference between a code red and purple or green and Orange?
I%26#039;ve looked on the Department of Environmental Quality web site and can not find it any where.

There%26#039;s also information on Wikipedia:

http://en.wikipedia.org/wiki/Air_quality

Asker's Rating:

that is exactly what I was looking for. thanks

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