Environmental Engineering Reference
In-Depth Information
NO
x
+ H
2
O
Nitric acid (HNO
3
)
Oxidation
SO
2
+ H
2
O
Sulfuric acid (H
2
SO
4
)
FIGURE 7.31
Development of acid rain. (From New York State Department of Environmental Conservation, Acid deposition
large graphic, http://www.dec.ny.gov/chemical/41293.html (accessed June 27, 2010), 2010.)
6/2010
Legend**
County designated nonattainment for 4 NAAQS pollutants
County designated nonattainment for 3 NAAQS pollutants
County designated nonattainment for 2 NAAQS pollutants
County designated nonattainment for 1 NAAQS pollutant
FIGURE 7.32
Nonattainment areas of the United States for smog-forming air pollutants in 2006. (From United States
Environmental Protection Agency, Counties designated “nonattainment” for Clean Air Act's national ambient
air quality standards (NAAQS) http://www.epa.gov/oaps001/greenbk/mapnpoll.pdf (accessed June 28, 2010),
2010c.)
Search WWH ::
Custom Search