Evaluating Ozone Control Programs in the Eastern United States (1997-2004): State and Local Information

EPA and state and local agencies have worked diligently to limit ozone formation by reducing emissions of its key precursor gases: nitrogen oxides (NOx) and volatile organic compounds (VOCs). Emissions and ozone trends reflect implementation of these programs. In the eastern United States, emissions of NOx and VOCs have decreased by 25 and 21 percent, respectively, from 1997 to 2004. In response, ozone has declined by 14 percent, on average.

graph showing NOx and VOC reductions of 25 and 21 percent

map of eastern US showing percent change in ozone from 1997 to 2004

To get available information where you live, click on your region or select your state from the list below.

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Region 1 (PDF, 13 pp, 142 KB) Connecticut Maine Massachusetts New Hampshire Rhode Island Vermont	Region 2 (PDF, 6 pp, 82 KB) New Jersey New York	Region 3 (PDF, 16 pp, 243 KB) Delaware Maryland Pennsylvania Virginia Washington, DC West Virginia	Region 4 (PDF, 21 pp, 299 KB) Alabama Florida Georgia Kentucky Mississippi North Carolina South Carolina Tennessee
Region 5 (PDF, 17 pp, 249 KB) Illinois Indiana Michigan Minnesota Ohio Wisconsin	Region 6 (PDF, 5 pp, 38 KB) Arkansas Louisiana	Region 7 (PDF, 5 pp, 46 KB) Iowa Missouri

Evaluating Ozone Control Programs in the Eastern United States (1997-2004): State and Local Information

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