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Search Results for the EPA National Library Catalog
Items Found: 1075
Showing: Items 401 - 450
Your Search: (SUBJECT=pH)
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Title
Year Published
401
Environmental requirements and pollution tolerance of freshwater diatoms /
1974
402
Environmental requirements and pollution tolerance of Plecoptera /
1978
403
Environmental requirements and pollution tolerance of trichoptera /
1978
404
Environmental requirements of selected estuarine ciliated protozoa /
1975
405
Enzymatic Activities Related to the Decomposition of Coniferous Leaf Litter.
1976
406
Enzyme-based detection of chlorinated hydrocarbons in water /
1985
407
EPA (Environmental Protection Agency) Method Study 15, Method 605--Benzidines.
1984
408
EPA alkali scrubbing test facility : advanced program, second progress report /
1976
409
EPA method study 30, method 625 : base/neutrals, acids and pesticides /
1984
410
Episodic Acidification and Associated Fish and Aquatic Invertebrate Responses in Four Catskill Mountain Streams: An Interim Report of the Episodic Response Project.
1991
411
Episodic Acidification and Associated Fish and Benthic Invertebrate Responses of Four Adirondack Headwater Streams. Methods Report.
1993
412
Episodic acidification occurrence, causes and significance to aquatic resources /
1998
413
Episodic Acidification of Freshwater Systems in Canada: Physical and Geochemical Processes.
1993
414
Episodic response project : northern Applachian plateau: site description and methodology /
1992
415
Episodic Water Quality Events and Striped Bass Recruitment: Larval Mark-Recapture Experiments in the Nanticoke River.
1996
416
Equilibrium Fluoride Capacity of Activated Alumina. Determination of the Effects of pH and Competing Ions.
1981
417
Estimating critical loads of sulfate to surface waters in the Northeastern United States : a comparative assessment of three procedures for estimating critical loads of sulfate for lakes /
1993
418
Estimating critical loads of sulfate to surface waters in the Northeastern United States : a comparative assessment of three procedures for estimating critical loads of sulfate for lakes /
1991
419
Estuarine response to nutrient enrichment, a counterpart of eutrophication : a bibliography /
1979
420
Estuarine Response to Nutrient Enrichment. A Counterpart of Eutrophication. Volume II. An Annotated Bibliography.
1979
421
Evaluation of a Field Test Kit for Monitoring Lead in Drinking Water.
1993
422
Evaluation of a Method to Measure Conjugal Transfer of Recombinant DNA in Soil Slurries.
1989
423
Evaluation of BMPs to Reduce NPS Pollution at the Farm Level.
2012
424
Evaluation of Effluent Regulations of the State of Illinois.
1976
425
Evaluation of equations for designing ammoniacal scrubbers to remove sulfur oxides from waste gas /
1974
426
Evaluation of Expedient Decontamination Options with Activated Peroxide- based Liquid Sporicides.
2013
427
Evaluation of Extended Aeration Treatment at Recreation Areas.
1970
428
Evaluation of Hach Direct Reading Engineer's Laboratory.
1968
429
Evaluation of instrument for the determination of phenol in water /
1976
430
Evaluation of Methods Used for the Determination of Acidity in 'Acid Rain' Samples.
1985
431
Evaluation of Modifications to Extraction Procedures Used in Analysis of Environmental Samples from Superfund Sites.
1989
432
Evaluation of Problems Related to Scaling in Limestone Wet Scrubbing.
1973
433
Evaluation of Proposed TG and E (Tucson Gas and Electric Company) Wastewater Discharge on Groundwater in the Tucson Basin.
1977
434
Evaluation of reverse osmosis membranes for treatment of electroplating rinsewater /
1980
435
Evaluation of solidified residue from municipal solid waste combustors /
1989
436
Evaluation of Specific Requirements for Unfiltered Surface Water Supplies.
1988
437
Evaluation of Stable Labeled Compounds as Internal Standards for Quantitative GC/MS Determinations.
1983
438
Evaluation of Stream Chemistry and Watershed Characteristics in the Mid-Atlantic Coastal Plain.
1995
439
Evaluation of surface mine reclamation techniques : Campbell's Run watershed, Pennsylvania /
1976
440
Evaluation of the National Trends Network's Site Placement Design.
1987
441
Evaluation of Treatment Effectiveness for Reducing Trihalomethanes in Drinking Water.
1983
442
Evaluation of Wastewater Treatment Practices Employed at Alaskan Gold Placer Mining Operations.
1979
443
Evolution of California's Placer Mining Landscape.
1998
444
Experiences with single species tests for acute toxic effects on freshwater animals /
1988
445
Experimental Acidification of a Stream in the Hubbard Brook Experimental Forest, New Hampshire.
1980
446
Experimental Acidification of Little Rock Lake, Wisconsin.
1986
447
Experimental Air Exclusion System for Field Studies of SO2 Effects on Crop Productivity.
1977
448
Experimental Determination of the Calcium Carbonate Saturation States of Water Systems (Technical Note).
1985
449
Experimental evaluation of oxygen and air activated sludge nitrification systems with and without pH control /
1976
450
Experiments and experiences in biomanipulation : studies of biological ways to reduce algal abundance and eliminate blue-greens /
1982
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