Overview
The National Park Service (NPS) is charged with maintaining national park units and their re-sources unimpaired for the enjoyment of future generations. Park resources aff ected by air qual-ity include scenery and vistas, vegetation, water, and wildlife.
- | Author: National Park Service
- | Publisher: Createspace Independent Publishing Platform
- | Publication Date: Sep 27, 2013
- | Number of Pages: 58 pages
- | Binding: Paperback or Softback
- | ISBN-10: 1492818356
- | ISBN-13: 9781492818359
