Selenium in Ecosystems: Western US Study Areas

Map showing location of National Irrigation Water Quality Program study areas.

Detailed Description

Location of several National Irrigation Water Quality Program study areas in the Western United States selected because of potential irrigation-drainage water-quality problems. Also shown are data-collection sites within study areas.  Modified from Seiler et. al., 2003.

Details

Image Dimensions: 454 x 465

Location Taken: US