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Summary
| Description |
English: 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 |
| Source | Government of the United States |
| Author | Government of the United States |
Licensing
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This image (or other media) is a work of an Environmental Protection Agency employee, taken or made as part of that person's official duties. As works of the U.S. federal government, all EPA images are in the public domain.
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Original upload log
The original description page was here. All following user names refer to en.wikipedia.
| Date/Time | Dimensions | User | Comment |
|---|---|---|---|
| 2007-07-01 19:44 | 713×514× (262181 bytes) | Beland | 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 |
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 14:30, 15 June 2015 | | 713 × 514 (256 KB) | BD2412 | Transferred from en.wikipedia |
File usage
The following 4 pages use this file:
Global file usage
The following other wikis use this file:
- Usage on th.wikipedia.org
