Search Results for the EPA National Library Catalog

Items Found: 1075
Showing: Items 651 - 700
Your Search: (SUBJECT=Ph)


 
 
 
PREV 1 ... 9 10 11 12 13 14 15 16 17 18 19 ... 22 NEXT
Select Item Title Year Published
Methods for chemical analysis of water and wastes. 1983
Methods for chemical analysis of water and wastes. 1978 / 1979
Methods for Conducting Snail (Aplexa hypnorum) Embryo through Adult Exposures: Effects of Cadmium and Reduced pH Levels. 1984
Methods of removing uranium from drinking water : 1. a literature survey. 2. Present municipal water treatment and potential removal methods / 1982
Methods Used in Determination of Cholinesterase Activity. 1991
Microbial Degradation of Organic Pollutants of Industrial Origin. 1970
Microbial effect on the quality of leach water from eastern Montana coal mine spoils / 1980
Microbial Release of Soluble Phosphate in an Activated Sludge Environment. 1971
Microbial Response to Acid Deposition and Effects on Plant Productivity. 1984
Microbiological changes in source water treatment : reflections in distribution water quality / 1992
Microbiology of Sewage Lagoons - Role of Purple Sulfur Bacteria in the Stabilization of Industrial Wastes. 1970
Microprocessor-controlled ion selective electrode determination of total chlorine / 1982
Mid-Latitude Northern Hemisphere Background Sulfate Concentration in Rainwater. 1990
Mineral Dissolution Rates in Plot-Scale Field and Laboratory Experiments. 1993
Mineral Weathering Rates from Small-Plot Experiments, WMP Site, Bear Brooks, Maine, U.S.A. 1993
Mineral Weathering Rates in Acid-Sensitive Catchments: Extrapolation of Laboratory Experiments to the Field. 1992
Mobile Pilot Plant for Removal of Phosphate from Wastewaters by Adsorption on Alumina. 1970
Mobilization of Aluminum in a Natural Soil System: Effects of Hydrologic Pathways. 1987
Model of 'Giardia lamblia' Inactivation by Free Chlorine. 1991
Modeling Chemical Interactions in Anaerobic Biofilm Systems. 1993
Modeling of Long-Term Lake Alkalinity Responses to Acid Deposition. 1989
Modeling Substrate Transport into Biofilms: Role of Multiple Ions and pH Effects. 1993
Modelling Epicodic Acidification of Surface Waters: The State of Science. 1992
Monitoring of the Effluent Stream from Wastewater Treatment Plants. 1971
Monitoring of trace constituents during PCB recovery dredging operations : Duwamish waterway / 1977
Monitoring to detect previously unrecognized pollutants in surface waters / 1977
Monitoring to Detect Previously Unrecognized Pollutants in Surface Waters--Appendix: Organic Analysis Data. 1977
Morphological Variation in Djalmabatista (Diptera: Chironomidae) Associated with Coal-Strip-Mine Ponds. 1983
Mortality of Brook Trout, Mottled Sculpins, and Slimy Sculpins during Acidic Episodes. 1993
Multilaboratory Evaluation of Methods for Detecting Enteric Viruses in Soils. 1991
Multimedia pollution assessment of the wood products industries / 1984
Multiple Effects of Acid and Aluminum on Brood Stock and Progeny of Fathead Minnows, with Emphasis on Histopathology. 1990
Multiple Eluent and pH Effects on Ion Chromatography of Phosphate and Arsenate. 1982
National Atmospheric Deposition Program/National Trends Network (NADP/NTN) Site Visitation Program: Summary Report for the Period December 1984 through September 1986. 1987
National Atmospheric Deposition Program: 1997 Wet Deposition. 1997
National Atmospheric Deposition Program: 1998 Wet Deposition. 1998
National Atmospheric Deposition Program: 1999 Annual Summary. 1999
National Atmospheric Deposition Program: 2000 Annual Summary. 2000
National Atmospheric Deposition Program: 2001 Annual Summary. 2001
National Atmospheric Deposition Program: 2002 Annual Summary. 2002
National Atmospheric Deposition Program: 2003 Annual Summary. 2003
National Atmospheric Deposition Program: 2004 Annual Summary. 2004
National Atmospheric Deposition Program: 2005 Annual Summary. 2005
National Atmospheric Deposition Program: 2006 Annual Summary. 2006
National Atmospheric Deposition Program: 2007 Annual Summary - 30 Years of the NADP. 2007
National stream survey, Phase I : field operations report. 1988
National surface water survey : national stream survey, phase I - pilot survey--field operations report / 1987
National surface water survey : national stream survey, phase I--pilot survey / 1986
National Water Quality Network. Report on Analytical Reference Sample Type I, BD-4. 1959
National Water Quality Network. Report on Reference Sample Type 2, BD-4. 1963
PREV 1 ... 9 10 11 12 13 14 15 16 17 18 19 ... 22 NEXT

Save, Print or Email Selected Records