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Author: National Water-Quality Assessment Program (U.S.)
Institution
Collection
Subject
95
Water Pollution
93
Nutrient pollution of water
74
Groundwater Pollution
69
Pesticides Environmental aspects
69
Water quality
22
Nitrates Environmental aspects
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21
Suspended sediments
19
Organic water pollutants
15
Groundwater Quality
12
Organic compounds Environmental aspects
9
Agricultural pollution
9
Trace elements Environmental aspects
9
Volatile organic compounds Environmental aspects
9
Water Nitrogen content
7
Land use Environmental aspects
7
Organochlorine compounds Environmental aspects
7
River sediments
6
Drinking water Contamination
6
Hydrogeology
6
Nonpoint source pollution
6
Water quality Measurement
6
Water quality biological assessment
6
Water quality management
6
Water-supply
5
Groundwater
5
Trace elements in water
5
Water Pesticide content
5
Water Phosphorus content
4
Agricultural chemicals Environmental aspects
4
Bacterial pollution of water
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Author
National Water-Quality Assessment Program (U.S.)
188
Geological Survey (U.S.)
88
Geological Survey (U.S.),
6
Gilliom, Robert J.
5
Zimmerman, Marc James, 1947-
4
Burow, Karen R.
more ...
4
Delzer, Gregory C.
4
Ebbert, J. C.
4
Embrey, S. S.
4
Kingsbury, James A.
4
Lindsey, Bruce D., 1962-
4
Maluk, Terry L.
4
Mueller, David K.
4
Nolan, Bernard T., 1954-
4
Peterson, David A. 1955-
4
Sprague, Lori A.
4
Thomas, Mary Ann
4
Transport of Anthropogenic and Natural Contaminants (TANC) to Public-Supply Wells (Study)
3
Anderholm, Scott K.
3
Andrews, William J., 1962-
3
Brown, Larry R.
3
Brown, M. F.
3
Coupe, Richard H. 1954-
3
Demcheck, Dennis K.
3
Dubrovsky, N. M.,
3
Frey, Jeffrey W.
3
Hitt, Kerie J.
3
Kratzer, Charles R.
3
Lee, K. E.
3
National Irrigation Water Quality Program (U.S.)
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Language
Literary Form
Region
52
United States
24
California
13
Texas
10
Connecticut
9
Georgia
9
Trinity River Watershed
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9
Washington (State)
9
Wisconsin
8
Florida
8
Oregon
8
Potomac River Watershed
7
Minnesota
7
Ozark Mountains
7
San Joaquin Valley
6
Connecticut River Watershed
6
Housatonic River Watershed (Mass. and Conn.)
6
Illinois River Watershed
6
Indiana
6
Nevada
6
New England
6
South Carolina
6
Thames River Watershed
6
Willamette River Watershed
5
Nebraska
5
New Jersey
5
San Joaquin River Watershed
5
Susquehanna River Watershed
5
Yakima River Watershed
4
Colorado
4
High Plains Aquifer
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Year of Publication