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Ambient Air Quality Standards | Midpage
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Virginia Administrative Code
Title 9
5
Chapter 30
Ambient Air Quality Standards
10
General.
15
Reference conditions.
30
Sulfur oxides (sulfur dioxide).
40
Carbon monoxide.
50
Ozone (1-hour).
55
Ozone (8-hour, 0.08 ppm).
56
Ozone (8-hour, 0.075 ppm).
57
Ozone (8-hour, 0.070 ppm).
60
Particulate matter (PM10).
65
Particulate matter (PM2.5).
66
Particulate matter (PM2.5).
67
Particulate matter (PM2.5).
68
Particulate matter (PM2.5).
70
Oxides of nitrogen with nitrogen dioxide as the indicator.
80
Lead.