Effects of Agriculture and Urbanization on Quality of Shallow Ground Water in the Arid to Semiarid Western United States, 1993

Scientific Investigations Report 2007–5179

U.S. GEOLOGICAL SURVEY
Scientific Investigations Report 2007–5179

Figure - refer to figure caption for alternative text description

Figure 5. Nutrient speciation in ground-water samples collected from agricultural and urban areas in regional National Water-Quality Assessment Program study units in the arid to semiarid Western United States, 1993–2004.

Back to Table of Contents

Accessibility FOIA Privacy Policies and Notices

U.S. Department of the Interior | U.S. Geological Survey
URL: https://pubs.usgs.gov/sir/2007/5179
Page Contact Information: Publications Team
Page Last Modified: Thursday, 01-Dec-2016 19:49:55 EST