Image:US-ozone-non-attainment-2007-06.png

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Summary

Counties of the United States that violated the 8-hour ozone safety standard of the United States Environmental Protection Agency, as of June 2007, or are designated as "maintenance" areas, which require ongoing attention to avoid violating the standard in the future.

Derived from: http://www.epa.gov/oar/oaqps/greenbk/map8hrnm.jpg

Licensing

Public domain This work is in the public domain in the United States because it is a work of the United States Federal Government under the terms of Title 17, Chapter 1, Section 105 of the US Code. See Copyright.
Note: This only applies to works of the Federal Government and not to the work of any individual U.S. state, territory, commonwealth, county, municipality, or any other subdivision. This template also does not apply to postage stamps published by the United States Postal Service. (See 206.02(b) of Compendium II: Copyright Office Practices).

File history

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Date/Time Dimensions User Comment
current 19:44, 1 July 2007 713×514 (256 KB) Beland ( Talk | contribs) (Counties of the United States that violated the 8-hour ozone safety standard of the United States Environmental Protection Agency, as of June 2007, or are designated as "maintenance" areas, which require ongoing attention to avoid violating th)

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