Author
ProQuest (Firm)
3,758 results
Geological Survey (U.S.)
2,041 results
Library of Congress. Congressional Research Service
1,953 results
SpringerLink (Online service)
1,140 results
United States. Environmental Protection Agency
509 results
National Water-Quality Assessment Program (U.S.)
315 results
United States. Environmental Protection Agency. Office of Air Quality Planning and Standards
299 results
United States. Congress. Senate. Committee on Environment and Public Works
281 results
Texas Water Commission
266 results
United States. Environmental Protection Agency. Office of Research and Development
239 results
Meyer, John E.
227 results
Montgomery, Victoria K.
227 results
United States. General Accounting Office
201 results
Industrial Environmental Research Laboratory (Research Triangle Park, N.C.)
188 results
NetLibrary, Inc
179 results
National Institute for Occupational Safety and Health
168 results
United States. Environmental Protection Agency. Office of Water
168 results
United States. Office of Water Resources Research
159 results
United States. Department of Energy
158 results
Texas Natural Resource Conservation Commission
135 results
Knovel (Firm)
125 results
United States. Office of Water Research and Technology
118 results
Air and Energy Engineering Research Laboratory
114 results
United States. Government Accountability Office
106 results
United States. National Commission on Air Quality
101 results
United States. Congress. Senate. Committee on Public Works
94 results
United States. Congress. House. Committee on Transportation and Infrastructure
90 results
United States. Environmental Protection Agency. Office of Air and Radiation
87 results
United States. Environmental Protection Agency. Emission Standards and Engineering Division
85 results
United States. Congress. House. Committee on Transportation and Infrastructure. Subcommittee on Water Resources and Environment
79 results
International Atomic Energy Agency
74 results
Environmental Sciences Research Laboratory
73 results
United Nations Environment Programme
73 results
United States. Bureau of Mines
72 results
United States. Congress. House. Committee on Merchant Marine and Fisheries
72 results
Atmospheric Sciences Research Laboratory
71 results
United States. Environmental Protection Agency. Office of Transportation and Air Quality. Assessment and Standards Division
71 results
Harrison, Roy M., 1948-
68 results
U.S. Fish and Wildlife Service
68 results
United States. Congressional Budget Office
68 results
United States. National Oceanic and Atmospheric Administration
67 results
World Health Organization
67 results
Robert S. Kerr Environmental Research Laboratory
65 results
Industrial Environmental Research Laboratory (Cincinnati, Ohio)
63 results
Environmental Monitoring Systems Laboratory (Research Triangle Park, N.C.)
60 results
Taylor & Francis
60 results
United States. Environmental Protection Agency. Emission Standards Division
59 results
Environmental Research Laboratory (Athens, Ga.)
58 results
National Risk Management Research Laboratory (U.S.)
58 results
Royal Society of Chemistry (Great Britain)
58 results
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