Trends in Air Pollution Levels (IMAGE)

Cary Institute of Ecosystem Studies

Trends in Air Pollution Levels

Caption

Sulfur and nitrogen pollution reductions have been primarily attributed to emissions controls associated with the Clean Air Act, its amendments, and other rules and legislation. Data reflects trends in air pollution levels from US EPA's National Emissions Inventory.

Credit

Tony Webster via Flickr Creative Commons

Usage Restrictions

To promote this press release

License

Licensed content

Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.