File:Emission reduction.png
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| Description |
English: Since 1970, total emissions of the six main air pollutants have decreased by 69%. This is the overall reduction in emissions by mass per year. The Clean Air Act created a framework for achieving and maintaining clean and healthy air quality levels, while the Environmental Protection Agency established national ambient air quality standards for the six major air pollutants. Following that, each state was required to create implementation plans outlining how they would control emission limits from individual sources in order to meet and maintain national standards. (U.S. Environmental Protection Agency, 1997). |
| Date | |
| Source |
Clean Air Act (1970) and The United States Environmental Protection Agency US EPA, 2017c |
| Author | K. Restivo |
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This file is licensed under the Creative Commons Attribution-Share Alike 4.0 International license.
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- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 16:11, 1 April 2023 | | 544 × 141 (38 KB) | HAMLETOFJAPAN (talk | contribs) | Uploaded a work by K. Restivo from Clean Air Act (1970) and The United States Environmental Protection Agency US EPA, 2017c with UploadWizard |
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