In the news

PennEnvironment Research & Policy Center
|
Philadelphia Inquirer
By
Don Sapatkin

The air in the Philadelphia region, one of the smoggiest in the nation, is worse than people think, environmental groups said Wednesday.

For more information click on the link below:

http://articles.philly.com/2011-09-22/news/30189784_1_high-ozone-levels-ground-level-ozone-sunlight-and-summer-heat