Search Results for the EPA National Library Catalog

Items Found: 79

Showing: Items 1 - 50

Your Search: (SUBJECT=Ratios)

 
 
 

1 2 NEXT
Select Item Title Year Published
A Fortran program for computing the pollutant standards index (PSI) / 1978
Air Pollution Indices in the United States and Canada - The Present Picture. 1976
Analysis of population exposure to air pollution in New York-New Jersey-Connecticut tri-State Region / 1976
Analysis of the Public Health and Welfare Effects of EPA Proposed Aircraft Noise Regulations. 1976
Aquatic-Biotic Community Structure as an Indicator of Pollution. 1972
Bacteriological Criteria for Market Oysters. 1960
BOD5/DO Ratio. A New Analytical Tool for Water Quality Evaluation. 1960
Carboxy Hemoglobin Formation Due to Transient Exposure to High Level Carbon Monoxide: Experimental Results and an Explanatory Model. 1994
Carboxyhemoglobin Formation due to Transient Exposure to High Level Carbon Monoxide: Experimental Results and an Explanatory Model. 1994
Cesium: Potassium Index of Food Web Structure and Biomagnification of Trace Elements in a Polluted Harbor of Southern California. 1987
Comparison of ambient NMHC/NOx ratios with NMHC/NOx ratios calculated from emission inventories / 1978
Comparison of some new and old indices and measurements of trophic state / 1979
Comparison of working level ratios in houses occupied by smokers and non-smokers / 1986
Comparison of working level ratios in houses occupied by smokers and non-smokers {microfiche} 1986
Control strategies for the activated sludge process / 1980
Control strategies for the activated sludge process / 1980
Critical Review of Air Pollution Index Systems in the United States and Canada. 1976
Determination of Mercury Content in a Shallow Firn Core from Summit, Greenland by Isotope Dilution Inductively Coupled Plasma Mass Spectrometry. 2003
Distribution and importance of phytoplankton in the Atchafalaya Basin / 1978
Distribution of phytoplankton in Arkansas Lakes / 1978
Distribution of phytoplankton in Arkansas lakes / 1978
Distribution of phytoplankton in Florida lakes / 1978
Distribution of phytoplankton in Kansas lakes / 1979
Distribution of phytoplankton in Louisiana lakes / 1979
Distribution of phytoplankton in Missouri lakes / 1979
Distribution of phytoplankton in Nebraska lakes / 1979
Distribution of phytoplankton in North Carolina lakes / 1978
Distribution of phytoplankton in North Dakota lakes / 1979
Distribution of phytoplankton in Oklahoma lakes / 1979
Distribution of phytoplankton in Texas lakes / 1979
Distribution of phytoplankton in Utah lakes / 1979
Distribution of phytoplankton in West Virginia lakes / 1977
Effect of Carbon to Nitrogen Ratio on Activated Sludge Subsidence and Dewatering Characteristics. 1974
Effect of Temperature and Pore Size on the Hydraulic Properties and Flow of a Hydrocarbon Oil in the Subsurface. 1994
Effects of 4-ter-Octylphenol on Xenopus tropicalis in a Long Term Exposure. 2011
Effervescent Atomization at Low Air/Liquid Ratios. 1998
Environmental Indices for the Los Angeles Database. 1975
Evaluation of Ozone Exposure Indices for Relating Exposure to Plant Production and for Estimating Agricultural Losses. 1988
Evaluation of Ozone Exposure Indices in Exposure-Response Modeling (Journal Version). 1988
Feasibility of identifying mystery oil spills / 1981
Field measurement of denitrification / 1977
Guideline for public reporting of daily air quality : pollutant standards index (PSI) / 1976
Human scalp hair : an environmental exposure index for trace lements / 1978
Human scalp hair : an environmental exposure index for trace lements / 1978
Human scalp hair : an environmental exposure index for trace lements / 1978
Influence of Environmental Temperature on Sex-Ratios in the Tidewater Silverside, 'Menidia peninsulae' (Pisces: Atherinidae). 1987
Infrared Two Dimensional Image Analysis by Fourier Transform. 1970
Intensive Survey of the DuPage River Basin, 1983. 1988
Interim guidance on determination and use of water-effect ratios for metals / 1994
Lake and reservoir classification systems / 1979
1 2 NEXT

Save, Print or Email Selected Records