When you think about a national park, you probably think about fresh air, but the fact is that pollution blows through many of our parks, including the Shenandoah.
The Environmental Protection Agency came up with a rule to address air quality, but park advocates complain that the Trump administration is getting in the way of improvements.
Sandy Hausman explains.
https://virginiapublicradio.files.wordpress.com/2019/08/web-shenandoah-haze.mp3