Search Results for the EPA National Library Catalog

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Mutagenicity of Coal Tar Paints Used in Drinking Water Distribution Systems. 1984
Mutagenicity of emissions from the simulated open burning of scrap rubber tires 1992
Mutagenicity of the Fractionated Organic Emissions from Diesel, Cigarette Smoke Condensate, Coke Oven, and Roofing Tar in the Ames Assay. 1985
N2O field study (final report) / 1989
NAPCA Abstract Bulletin. Volume 1, Number 11, December 1970. 1970
NAS Report on Technological Feasibility of 1975-76 Motor Vehicle Emission Standards. A Critique of the 1975 Federal Automobile Emission Standard for Carbon Monoxide, National Academy of Sciences. 1973
National dioxin study tier 4 : combustion sources : project summary report / 1987
National dioxin study tier 4 : combustion sources : quality assurance evaluation / 1986
National dioxin study tier 4 : combustion sources : quality assurance project plan / 1985
National guidance for the permitting, monitoring, and enforcement of water quality-based effluent limitations set below analytical detection / quantitation levels (draft) / 1994
National performance audit program : 1979 proficiency surveys for sulfur dioxide, nitrogen dioxide, carbon monoxide, sulfate, nitrate, lead, and high volume flow / 1981
National Performance Audit Program: 1980 Proficiency Survey for Sulfur Dioxide, Nitrogen Dioxide, Carbon Monoxide, Sulfate, Nitrate, Lead and High Volume Flow. 1982
National pesticide survey : glossary. 1990
National pesticide survey : project summary. 1990
National pesticide survey : summary results of EPA's national survey of pesticides in drinking water wells. 1990
National pesticide survey : survey analytes. 1990
National pesticide survey : survey design. 1990
National surface water survey : stream survey (pilot, middle-Atlantic phase I, southeast screening, and middle-Atlantic episode pilot): analytical methods manual / 1987
National survey of pesticides in drinking water wells : phase I report / 1990
National Water Quality Network Applications and Development Report. 6. Evaluation of the Field Performance of a Hays Dissolved Oxygen Analyzer. 1962
NBS Program for Standards for Trace Organic Analysis in the Marine Environment. 1977
NERC/RTP Research Projects - Fiscal Year 1973 (Summaries of Intramural and Extramural Active Research Projects). 1972
Network Design Factors for Assessing Temporal Variability in Ground-Water Quality. 1989
Neutron Activation Analysis for Simultaneous Determination of Trace Elements in Ambient Air Collected on Glass-Fiber Filters. 1979
Neutron Activation Analysis of Bottom Sediments. 1973
New Audit Method for EPA (Environmental Protection Agency) Reference Method 6. 1984
New liquid chromatographic detection system for environmental pollutants / 1980
New Methods of Nitrite and Nitrate Analysis for Natural Waters. 1973
Nitrate interference in total kjeldahl nitrogen determinations and its removal by anion exchange resins / 1977
Nitrate removal for small public water systems / 1983
Nitric oxide measurement study : volume III : comparison of optical and probe methods / 1980
Nitric Oxide Measurement Study: Optical Calibration - Volume I. 1980
Nitric Oxide Measurement Study: Probe Methods - Volume II. 1980
Nitrogen dioxide photolytic, radiometric and meteorological field data / 1978
Nitrogen in the subsurface environment / 1975
Nitrogen oxides / 1976
Nitrogen Oxides: An Annotated Bibliography. 1970
Nitrogen Removal and Identification for Water Quality Control. 1971
Nitrosamine analysis of diesel crankcase emissions / 1980
NO2 Measuring System. 1974
Noble Gases. 1973
Nomethane organic compound monitoring program : final report 1988. Volume 2. Urban air toxics monitoring program / 1988
Non-Ferrous Metals Industry. Accomplishment Plan. Broad Objectives. 1972
Non-polar volatile organic compounds in whole air samples from the autotex studies. {microfiche} 1991
Non-urban hydrocarbon concentrations in ambient air north of Houston, Texas / 1979
Nonmethane Organic Carbon Concentrations in Air Masses Advected into Urban Areas in the United States. 1987
Nonmethane Organic Compound and Air Toxics Monitoring Program. Final Report 1987. Volume 1. Hydrocarbons. 1988
Nonmethane Organic Compound and Toxics Monitoring Program. Final Report 1987. Volume 2. Toxic Species. 1988
Nonmethane organic emissions from bread producing operations / 1978
Nonselective Collector for Sampling Gaseous Air Pollutants. 1959
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