Winter Air Quality in Yellowstone National Park 2007-2008

by U.S. National Park Service and John D. Ray

The effects of winter vehicle exhaust, primarily from snowmobiles, on air quality became an issue in the later 1990's at Yellowstone National Park, WY. For the last several years, ambient air quality... This description may be from another edition of this product.

• Format: Paperback
• Language: English
• ISBN: 149442326X
• ISBN13: 9781494423261
• Release Date: November 2008
• Publisher: Createspace Independent Publishing Platform
• Length: 28 Pages
• Weight: 0.20 lbs.
• Dimensions: 0.1" x 8.5" x 11.0"