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Search Results for the EPA National Library Catalog
Items Found: 1075
Showing: Items 51 - 100
Your Search: (SUBJECT=pH)
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Year Published
51
Alaska placer mining metals study : year two /
1999
52
Alaskan Placer Mining Study and Testing Summary Report 1984. Preliminary Draft.
1984
53
Albemarle-Pamlico Baseline Water Quality Monitoring Data Summary 1991-1992.
1992
54
Albemarle-Pamlico Baseline Water Quality Monitoring Data Summary, 1988-1991.
1992
55
Alternatives for Hazardous Waste Management in the Inorganic Chemicals Industry.
1977
56
Alum Addition and Step-Feed Studies in Oxygen-Activated Sludge.
1977
57
Alum Addition of Activated Sludge with Tertiary Solids Removal.
1973
58
Amelia River Pilot Study for Implementing EPA's Toxic Control Policy.
1991
59
Ames 'Salmonella' Mutagenicity Assay Procedures for Water Samples. Protocol A: Sample Collection. Protocol B: Sample Processing. Protocol C: Ames 'Salmonella' Mutagenicity Assay.
1991
60
Ammonia Effects on Microinvertebrates and Fish in Outdoor Experimental Streams.
1987
61
Ammonia investigations in the Colorado River, Grand Junction and Fruita, Colorado /
1979
62
Ammonia toxicity /
1976
63
Ammonia Toxicity to Fishes. Effect of pH on the Toxicity of the Un-ionized Ammonia Species.
1981
64
Ammonia-Nitrogen Removal by Breakpoint Chlorination.
1973
65
An alternative septage treatment method : lime stabilization/sand-bed dewatering /
1975
66
An assessment of atmospheric exposure and deposition to high elevation forests in the eastern United States /
1990
67
An automated monitoring system for fish physiology and toxicology /
1989
68
An Ecological Approach to the Problem of Biodegradation of Phenolic Wastes.
1975
69
An investigation into recreational water quality /
1972
70
Analysis and Assessment of Incinerated Municipal Sludge Ashes and Leachates.
1984
71
Analysis for Ozone and Residual Chlorine by Differential Pulse Polarography of Phenylarsine Oxide.
1979
72
Analysis of acid precipitation samples collected by state agencies : sampling period January-December 1990 (annual report) /
1992
73
Analysis of acid precipitation samples collected by state agencies, 1988 /
1990
74
Analysis of acid precipitation samples collected by state agencies--sampling period January 1991-December 1991 : annual report /
1996
75
Analysis of acid precipitation samples collected by state agencies--sampling period January 1992-December 1992 /
1995
76
Analysis of Acid Precipitation Samples Collected by State Agencies. Annual Report.
1987
77
Analysis of Acid Precipitation Samples Collected by State Agencies. Sampling Period: January-December 1993.
1996
78
Analysis of Acid Precipitation Samples Collected by State Agencies: January-December 1987.
1989
79
Analysis of Inactivation of 'Giardia lamblia' by Chlorine.
1989
80
Analysis of the NBS (National Bureau of Standards) Sediment by the MRI (Midwest Research Institute) Sludge Protocol.
1984
81
Analysis of the Relationship Between Stream Water Quality and Regional Income Generated by Water-Oriented Recreations.
1971
82
Antimicrobial Activities of N-Chloramines and Diazolidinyl Urea.
1985
83
Applicability of the cyanide electrode for measuring free and total cyanide /
1976
84
Application of a simple short-term bioassay for the identification of genotoxins from hazardous wastes /
1989
85
Application of Biological Monitoring Systems to Simulated Industrial Waste Discharge Situation.
1972
86
Approach to bioremediation of contaminated soil /
1990
87
Aquatic Organisms in Acidic Environments: A Literature Review.
1985
88
Aquatic-Biotic Community Structure as an Indicator of Pollution.
1972
89
Aqueous ammonia equilibrium : tabulation of percent un-ionized ammonia /
1979
90
Areawide Waste Treatment and Water Quality Management Planning. Appendix C-2. Geology of the Coal-Mining Portion of the Southern Illinois 208 Area and Its Application to Water Quality Problems.
1978
91
Artificial Sediments for Use in Tests with Wetland Plants.
1990
92
Aspects of the Relationship Between Temperature and Aquatic Chemistry.
1973
93
Assessing the geochemical fate of deep-well-injected hazardous waste : a reference guide.
1990
94
Assessing the Regional Effects of Sulfur Deposition on Surface Water Chemistry: The Southern Blue Ridge (Journal Version).
1988
95
Assessment of pH Control of Process Waters in Selected Plants.
1979
96
ATHIAS: An Information System for Abiotic Transformations of Halogenated Hydrocarbons in Aqueous Solution.
1988
97
Atlas of air quality and deposition in or near forests of the Western United States /
1990
98
Atmospheric Diffusion and Air Pollution: Abstracts.
1971
99
Atmospheric Loadings to Waters of the Four Upper Great Lakes. A Status Report.
1980
100
Attenuation of pollutants in municipal landfill leachate by clay minerals /
1978
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