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Search Results for the EPA National Library Catalog
Items Found: 4639
Showing: Items 51 - 100
Your Search: (SUBJECT=biological)
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Year Published
51
A Manual on methods for the assessment of secondary productivity in fresh waters /
1971
52
A model comprehensive state management plan for the prevention and control of nonindigenous aquatic nuisance species : report to the Great Lakes state /
1996
53
A new history of life : the radical new discoveries about the origins and evolution of life on earth /
2015
54
A new process for treating wastewater : oxygen aeration.
1973
55
A paleolimnological comparison of Burntside and Shagawa Lakes, Northeastern Minnesota /
1978
56
A paradigm for developing sediment toxicity bioassays for the regulatory evaluation of dredged material /
1994
57
A Phase I inventory of current EPA efforts to protect ecosystems /
1995
58
A Pilot study for ambient toxicity testing in Chesapeake Bay : year 3 report /
1994
59
A pilot study for ambient toxicity testing in Chesapeake Bay : year 4 report.
1997
60
A plague of rats and rubbervines : the growing threat of species invasions /
2002
61
A preliminary compartment model of a tallgrass prairie, Osage site, 1970 /
1972
62
A primer on using biological assessments to support water quality management.
2011
63
A problem with flux chamber measurements of biogenic sulfur emissions /
1979
64
A Research strategy for electric and magnetic fields : research needs and priorities /
1991
65
A review and needs survey of upset early warning devices /
2000
66
A review and needs survey of upset early warning devices : executive summary.
2000
67
A review of single species toxicity tests : are the tests reliable predictors of aquatic ecosystem community responses? /
1999
68
A review of turbidity removal associated with biological treatment of paper mill wastewaters.
1974
69
A sensitivity test for species distribution models used for gap analysis in New Mexico /
1996
70
A study of industrial data on candidate chemicals for testing : research request no. 3/ SRI International ; prepared for United States, Environmental Protection Agency, Office of Toxic Substances ; Project Officer: James Darr.
1978
71
A study of nitrification and denitrification /
1970
72
A study of nitrification and denitrification,
1970
73
A watershed assessment primer /
1994
74
Above- and Belowground Emergent Macrophyte Production and Turnover in a Coastal Marsh Ecosystem, Georgia.
1984
75
Abstract proceedings : fourth forum on innovative hazardous waste treatment technologies : domestic and international, San Francisco, CA, November 17-19, 1992.
1992
76
Abstract proceedings : Fourth Forum on Innovative Hazardous Waste Treatment Technologies, Domestic and International : San Francisco, CA, November 17-19, 1992.
1993
77
Abstracts and index to publications related to microbial ecology, biochemistry, genetics and biotechnology
1985
78
Abstracts of remediation case studies /
1995
79
Abstracts of remediation case studies : volume 2 /
1997
80
Abstracts of remediation case studies : volume 3 /
1998
81
Accomplishment Plan. Region VIII. Comprehensive Energy-Environment Program. Appendix.
1975
82
Accumulation Factors for Eleven Polychlorinated Biphenyl Congeners.
1990
83
Accumulation of PCBs, mercury, and cadmium by Nereis virens, Mercenaria mercenaria, and Palaemonetes pugio from contaminated harbor sediments
1983
84
Acid Volatile Sulfide Predicts the Acute Toxicity of Cadmium and Nickel in Sediments.
1991
85
Acid-Volatile Sulfide as a Factor Mediating Cadmium and Nickel Bioavailability in Contaminated Sediments.
1991
86
Acidic Deposition Phenomenon and Its Effects: Critical Assessment Review Papers. Volume 1. Atmospheric Sciences (Review Draft).
1983
87
Acidic Deposition Phenomenon and Its Effects: Critical Assessment Review Papers. Volume 2. Effects Sciences (Review Draft).
1983
88
Acquiring genomes : a theory of the origins of species /
2002
89
Acquisition and chemical analysis of mother's milk for selected toxic substances /
1980
90
Action Spectra and Their Key Role in Assessing Biological Consequences of Solar UV-B Radiation Change.
1987
91
Activated carbon treatment of industrial wastewaters : selected technical papers /
1979
92
Activated carbon treatment of industrial wastewaters : selected technical papers /
1979
93
Activated sludge and activated carbon treatment of a wood preserving effluent containing pentachlorophenol /
1980
94
Acute Effects and Long-Term Sequelae of 1,3-Dinitrobenzene on Male Reproduction in the Rat. 1. Sperm Quality, Quantity, and Fertilizing Ability.
1988
95
Acute Effects and Long-Term Sequelae of 1,3-Dinitrobenzene on Male Reproduction in the Rat. 2. Quantitative and Qualitative Histopathology of the Testis.
1988
96
Acute toxic effects of chlorinated primary sewage effluent on Brook trout and Brown trout : Manchester, Vermont, Batten Kill River /
1979
97
Acute toxicity of certain pesticides to Acartia tonsa dana /
1976
98
Acute toxicity of malathion, tetrabromobisphenol-a, and tributyltin chloride to mysids (mysidopsis bahia) of three different ages /
1988
99
Acute toxicity of selected organic compounds to fathead minnows /
1976
100
Acute Toxicity, Sublethal Effects and Bioconcentration of Chlorination Products, Viruses, and Bacteria in Edible Shellfish: A Review.
1989
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