Search Results for the EPA National Library Catalog

Items Found: 18
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Your Search: (AUTHOR=Lefohn AND A AND S)

Select Item Title Year Published
A review and assessment of the effects of pollutant mixtures on vegetation : research recommendations / 1984
Acidic precipitation a technical amplification of NAPAP's findings : proceedings of an APCA International conference / 1988
Co-Occurrence of Potentially Phytotoxic Concentrations of Various Gaseous Air Pollutants. 1984
Co-Occurrence Patterns of Gaseous Air Pollutant Pairs at Different Minimum Concentrations in the United States (Journal Version). 1987
Comparison of Indices That Describe the Relationship between Exposure to Ozone and Reduction in the Yield of Agricultural Crops. 1988
Detection of Atmospheric Pollutants at Parts-Per-Billion Levels by Infrared Spectroscopy. 1973
Development of Sulfur Dioxide and Ozone Exposure Profiles That Mimic Ambient Conditions in the Rural Southeastern United States. 1987
Effects of air pollution on western forests / 1989
Evaluation of the Kriging Method to Predict 7-h Seasonal Mean Ozone Concentrations for Estimating Crop Losses (Journal Version). 1987
Federally sponsored energy research in the Northern Great Plains : Montana, FY 1976 / 1977
Federally sponsored energy research in the Northern Great Plains, North Dakota : FY 1976 / 1977
Injury Response of 'Phaseolus vulgaris' to Ozone Flux Density. 1985
Method for Developing Ozone Exposures That Mimic Ambient Conditions in Agricultural Areas. 1986
Potential Bias from Non-Continuous Monitoring of Ambient Ozone Concentrations for Characterizing Hourly and Daily 7- and 12-Hour Average Concentrations. 1993
The Bioenvironmental impact of a coal-fired power plant : first interim report, Colstrip, Montana, December 1974 / 1976
The Bioenvironmental impact of a coal-fired power plant : second interim report, Colstrip, Montana, June 1975 / 1976
Transactions: Effects of Air Pollution on Western Forests. 1989
Use of Kriging to Estimate Monthly Ozone Exposure Parameters for the Southeastern United States (Journal Version). 1988

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