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ALLEN S. LEFOHN

Complete Publication Listing

Published Books

Lefohn, A.S. (ed.) 1992. Surface-level Ozone Exposures and Their Effects on Vegetation. Published by Lewis Publishers, Inc., Chelsea, MI. 366 pp.

Lefohn, A.S. and S.V. Krupa (eds.) 1991. Proceedings of the A&WMA International Conference on the Scientific Evaluation of NAPAP's Integrated Assessment Report on Acidic Precipitation. Meeting held December 4-6, 1990. Published by Air & Waste Management Association, Pittsburgh, PA. 412 pp.

Olson, R. and A.S. Lefohn (eds.) 1989. Transactions of the Symposium on the Effects of Air Pollution on Western Forests. Meeting held June 29-30, 1989, Anaheim, CA. Published by Air & Waste Management Association, Pittsburgh, PA. 577 pp.

Lefohn, A.S. and S.V. Krupa (eds.) 1988. Proceedings of the APCA International Conference on Acidic Precipitation: A Technical Amplification of NAPAP's Findings. Meeting held January 26-28, 1988. Published by Air Pollution Control Association, Pittsburgh, PA. 239 pp.

Technical Publications

Lefohn, A.S., Malley, C.S., Simon, H., Wells. B., Xu, X., Zhang, L., Wang, T., 2017. Responses of human health and vegetation exposure metrics to changes in ozone concentration distributions in the European Union, United States, and China. Atmospheric Environment 152: 123-145. doi:10.1016/j.atmosenv.2016.12.025.

Lefohn, A.S., Cooper, O.R., 2015. Introduction to the special issue on observations and source attribution of ozone in rural regions of the western United States. Atmospheric Environment, 109: 279-281.

Lefohn, A.S., Emery, C., Shadwick, D., Wernli, H., Jung, J., Oltmans, S.J., 2014. Estimates of Background Surface Ozone Concentrations in the United States Based on Model-Derived Source Apportionment. Atmospheric Environment. http://dx.doi.org/10.1016/j.atmosenv.2013.11.033. 84:275-288.

Oltmans, S.J., Lefohn, A.S., Shadwick, D., Harris, J.M., Scheel, H.-E., Galbally, I., Tarasick, D.A., Johnson, B.J., Brunke, E., Claude, H., Zeng, G., Nichol, S., Schmidlin, F., Redondas, A., Cuevas, E., Nakano, T., Kawasato, T., 2013. Recent Tropospheric Ozone Changes - A Pattern Dominated by Slow or No Growth. Atmospheric Environment. 67:331-351.

Lefohn, A.S., Wernli, H., Shadwick, D., Oltmans, S.J., Shapiro, M., 2012. Quantifying the Importance of Stratospheric-Tropospheric Transport on Surface Ozone Concentrations at High- and Low-Elevation Monitoring Sites in the United States. Atmospheric Environment. 62:646-656.

McDonald-Buller, E.C., Allen, D.T., Brown, N., Jacob, D.J., Jaffe, D., Kolb, C.E., Lefohn, A.S., Oltmans, S., Parrish, D.D., Yarwood, G., Zhang, L., 2011. Establishing Policy Relevant Background (PRB) Ozone Concentrations in the United States. Environmental Science & Technology. 45(22):9484-97.

Lefohn, A.S., Wernli, H., Shadwick, D., Limbach, S., Oltmans, S.J., Shapiro, M. 2011. The Importance of Stratospheric-Tropospheric Transport in Affecting Surface Ozone Concentrations in the Western and Northern Tier of the United States. Atmospheric Environment. 45:4845-4857.

Lefohn, A.S., Shadwick, D., Oltmans, S.J. 2010. Characterizing Changes of Surface Ozone Levels in Metropolitan and Rural Areas in the United States for 1980-2008 and 1994-2008. Atmospheric Environment. 44:5199-5210.

Lefohn, A.S., Hazucha, M.J., Shadwick, D., Adams, W.C. 2010. An Alternative Form and Level of the Human Health Ozone Standard. Inhalation Toxicology. 22:999-1011.

Oltmans, S.J., Lefohn, A.S., Harris, J.M., Tarasick, DW., Thompson, AM., Wernli, H., Johnson, B.J., Novelli, P.C., Montzka, S.A., Ray, J.D., Patrick, L.C., Sweeney, C., Jefferson, A., Dann, T., Davies, J., Shapiro, M., and Holben, B.N. 2010. Enhanced ozone over western North America from biomass burning in Eurasia during April 2008 as seen in surface and profile observations. Atmospheric Environment. 44:4497-4509.

Heath R.L., Lefohn A.S., and Musselman R.C. 2009. Temporal processes that contribute to nonlinearity in vegetation responses to ozone exposure and dose. Atmospheric Environment. 43:2919-2928.

Lefohn A.S., Shadwick D., and Oltmans, S.J. 2008. Characterizing long-term changes in surface ozone levels in the United States (1980-2005). Atmospheric Environment. 42:8252-8262.

Oltmans S.J., Lefohn A.S., Harris J.M., and Shadwick D. 2008. Background ozone levels of air entering the west coast of the U.S. and assessment of longer-term changes. Atmospheric Environment. 42:6020-6038.

Hazucha M.J. and Lefohn A.S. 2007. Nonlinearity in human health response to ozone: Experimental laboratory considerations. Atmospheric Environment. 41:4559-4570.

Musselman R.C. and Lefohn A.S. 2007. The use of critical levels for determining plant response to ozone in Europe and in North America. Short Communication. Proceedings: Impacts of Air Pollution and Climate Change on Forest Ecosystems. TheScientificWorldJOURNAL 7(S1), 15–21. ISSN 1537-744X; DOI 10.1100/tsw.2007.24. www.thescientificworld.com.

Oltmans S.J., Lefohn A.S., Harris J.M., Galbally I., Scheel H.E., Bodeker G., Brunke E., Claude H., Tarasick D., Johnson B.J., Simmonds P., Shadwick D., Anlauf K., Hayden K., Schmidlin F., Fujimoto T., Akagi K., Meyer C., Nichol S., Davies J., Redondas A., and Cuevas E. 2006. Long-term changes in tropospheric ozone. Atmospheric Environment. 40:3156-3173.

Musselman, R.C., A.S. Lefohn, W.J. Massman, and R.L. Heath. 2006. A critical review and analysis of the use of exposure- and flux-based ozone indices for predicting vegetation effects. Atmospheric Environment. 40:1869-1888.

Cooper, O.R., A. Stohl, G. Hübler, E.Y. Hsie, D.D. Parrish, A.F. Tuck, G.N. Kiladis, S.J. Oltmans, B.J. Johnson, M. Shapiro, J.L. Moody, and A.S. Lefohn. 2005. Direct transport of mid-latitude stratospheric ozone into the lower troposphere and marine boundary layer of the tropical Pacific Ocean. J. Geophys. Res., 110, D23310, doi:10.1029/2005JD005783.

Pinto, J.P., A.S. Lefohn, and D.S. Shadwick. 2004. Spatial variability of PM2.5 in urban areas in the United States. J. Air & Waste Management Association. 54:440-449.

Lefohn, A.S., S.J. Oltmans, T. Dann, and H.B. Singh. 2001. Present-day variability of background ozone in the lower troposphere. J. Geophys. Res., 106(D9):9945-9958.

Lefohn, A.S. and D.S. Shadwick. 2000. Differences in Trending Estimates in the United States Using Several Ozone Metrics. Proceedings of the 93rd Annual Meeting of the Air & Waste Management Association, Salt Lake City, Utah. Air & Waste Management Association, Pittsburgh, PA. Paper AS 1d-645.

Massman, W.J., R.C. Musselman, and A.S. Lefohn. 2000. A Conceptual Ozone Dose-Response Model to Develop a Standard to Protect Vegetation. Atmospheric Environment. 34(5):745-759.

Lefohn, A.S. 2000. Developing Realistic Air Pollution Exposure/Dose Criteria for Ecological Risk Assessments. In: Integrated Assessment of Ecosystem Health. K. Scow, G. Fogg, D. Hinton, M. Johnson (eds.). Published by Lewis Publishers, CRC Press, Boca Raton, FL. pp. 307-320.

Lefohn, A.S., J. D. Husar, and R. B. Husar. 1999. Estimating Historical Anthropogenic Global Sulfur Emission Patterns for the Period 1850-1990. Atmospheric Environment. 33(21):3435-3444.

Lefohn, A.S., D.S. Shadwick, and S.D. Ziman. 1999. The Establishment of a New 8-Hour Average Ozone Standard in the United States. Proceedings of the Atmospheric Sciences and Applications to Air Quality 6th International Conference. State Environmental Protection Administration. Beijing, China.

Lefohn, A.S., D.S. Shadwick, and S.D. Ziman. 1998. The Difficult Challenge of Attaining EPA's New Ozone Standard. Environmental Science and Technology. 32(11):276A-282A.

Oltmans, S.J., Lefohn, A.S., Scheel, H.E., Harris, J.M., Levy, H. II, Galbally, I.E. , Brunke, E.G., Meyer, C.P., Lathrop, J.A., Johnson, B.J., Shadwick, D.S., Cuevas, E., Schmidlin, F.J., Tarasick, D.W., Claude, H., Kerr, J.B., Uchino, O., Mohnen, and V. 1998. Trends of Ozone in the Troposphere. Geophysical Research Letters. 25:139-142.

Lefohn, A.S. 1997. New Directions: A New Ozone Standard in the United States. Atmospheric Environment. 31(22):3851-3852.

Lefohn, A.S. 1997. Science, Uncertainty, and EPA's New Ozone Standards. Environmental Science and Technology. 31(6):280A-284A.

Lefohn, A.S., W. Jackson, D.S. Shadwick, and H.P. Knudsen. 1997. Effect of Surface Ozone Exposures on Vegetation Grown in the Southern Appalachian Mountains: Identification of Possible Areas of Concern. Atmospheric Environment. 31(11):1695-1708.

Altshuller, A.P. and A.S. Lefohn. 1996. Background Ozone in the Planetary Boundary Layer Over the United States. J. Air Waste Manag. Assoc. 46:134-141.

Musselman, R.C., P.M. McCool, and A.S. Lefohn. 1996. The Form and Function of the Ozone Standard to Protect Vegetation. In: Proceedings of Special Conference, Tropospheric Ozone: Critical Issues in the Regulatory Process. Air & Waste Management Association, Pittsburgh, PA., pp. 277-285.

Lefohn, A.S. and W.J. Manning. 1995. Ozone Exposures Near Wilderness Areas in Northern New England. Atmospheric Environment. 29(5):601-606.

Musselman, R.C., P.M. McCool, and A.S. Lefohn. 1994. Ozone Descriptors for an Air Quality Standard to Protect Vegetation. J. Air Waste Manag. Assoc. 44 (12):1383-1390.

Lefohn, A.S., P.J. Edwards, and M.B. Adams. 1994. The Characterization of Ozone Exposures in Rural West Virginia and Virginia. J. Air Waste Manag. Assoc. 44 (11):1276-1283.

Lefohn, A.S. 1994. Selecting an Exposure Index to Protect Vegetation. In: Critical Levels for Ozone-A UN-ECE Workshop Report (J. Fuhrer and B. Achermann, Editors). Proceedings of the UN-ECE Workshop on Critical Levels for Ozone, Bern, Switzerland, November 1-4, 1993. pp. 138-166. Published by the Swiss Federal Research Station for Agricultural Chemistry and Environmental Hygiene CH-3097 Liebefeld-Bern, Switzerland.

Pedersen, U. and A.S. Lefohn. 1994. Characterizing Surface Ozone Concentrations in Norway. Atmospheric Environment. 28(1):89-102.

Lefohn, A.S., J.K. Foley, and B.E. Tilton. 1993. Changes in Ozone Concentration Regimes as a Function of Change in Site Attainment Status. In: Transactions of the Tropospheric Ozone, Nonattainment and Design Value Issues Specialty Conference. Air & Waste Management Association, Pittsburgh, PA., pp. 477-488.

Lefohn, A.S. 1993. Protecting Vegetation from Ozone Exposures: The Form and Function of the Secondary Standard. In: Transactions of the Tropospheric Ozone, Nonattainment and Design Value Issues Specialty Conference. Air & Waste Management Association, Pittsburgh, PA., pp. 49-52.

Lefohn, A.S., R.B. Flagler, J.E. Miller, B. Hale, and J.M. Skelly. 1993. The Identification of Ambient Levels of Ozone that Will Protect Vegetation. In: Transactions of the Tropospheric Ozone, Nonattainment and Design Value Issues Specialty Conference. Air & Waste Management Association, Pittsburgh, PA., pp. 493-509.

Lefohn, A.S., J.K. Foley, D.S. Shadwick, and B.E. Tilton. 1993. Changes in Diurnal Patterns Related to Changes in Ozone Levels. J. Air Waste Manag. Assoc. 43:(11):1472-1478.

Lefohn, A.S. 1993. Realistic Concerns for Establishing a Secondary Standard to Protect Vegetation. Proceedings of the 86th Annual Meeting of the Air & Waste Management Association, Denver, Colorado. Air & Waste Management Association, Pittsburgh, PA.

Lefohn, A.S. and J.K. Foley. 1993. Establishing Ozone Standards to Protect Human Health and Vegetation: Exposure/Dose-Response Considerations. J. Air Waste Manag. Assoc. 43(2):106-112.

Lefohn, A.S., L.R. McEvoy, Jr., D.T. Tingey, J.L. Sebaugh, and W.E. Hogsett. 1993. Potential Bias from Non-continuous Monitoring of Ambient Ozone Concentrations for Characterizing Hourly and Daily 7- and 12-Hour Average Concentrations. Atmospheric Environment. 27A(2):145-152.

Lefohn, A.S. and J.K. Foley. 1992. NCLAN Results and Their Application to the Standard-Setting Process: Protecting Vegetation from Surface Ozone Exposures. J. Air Waste Manag. Assoc. 42(8):1046-1052.

Lefohn, A.S. 1992. Exposure Indices and the Standard-Setting Process: Protecting Vegetation from Surface Ozone Exposures. In: Proceedings of the 9th World Clean Air Congress and Exhibition, Montreal, Canada. Air & Waste Management Association, Pittsburgh, PA.

Lefohn, A.S., J.K. Foley, J. Spence, and D.S. Shadwick. 1992. Linking Surface-Level Ozone Exposures in the United States with Potential Vegetation Effects. In: Transactions of the Tropospheric Ozone and the Environment Specialty Conference II. (R.L. Berglund, editor). Air & Waste Management Association, Pittsburgh, PA, pp. 473-488.

Lefohn, A.S., H.P. Knudsen, D.S. Shadwick, and K.A. Hermann. 1992. Surface Ozone Exposures in the Eastern United States (1985-1989). In: Transactions of the Response of Southern Commercial Forests to Air Pollution Specialty Conference (R.B. Flagler, editor). Air & Waste Management Association, Pittsburgh, PA. pp. 81-93.

Lefohn, A.S., D.S. Shadwick, U. Feister, and V.A. Mohnen. 1992. Surface-Level Ozone: Climate Change and Evidence for Trends. J. Air Waste Manag. Assoc. 42(2):136-144.

Lefohn, A.S. 1992. The Characterization of Ambient Ozone Exposures. Chapter 3, pp. 39-92. In: Surface-Level Ozone Exposures and Their Effects on Vegetation. A.S. Lefohn (ed.). Published by Lewis Publishers, Inc., Chelsea, MI.

Lefohn, A.S. 1992. Ozone Standards and Their Relevance for Protecting Vegetation. Chapter 8, pp. 325-359. In: Surface-Level Ozone Exposures and Their Effects on Vegetation. A.S. Lefohn (ed.). Published by Lewis Publishers, Inc., Chelsea, MI.

Lefohn, A.S., D.S. Shadwick, M.C. Somerville, A.H. Chappelka, B.G. Lockaby, and R.S. Meldahl. 1992. The Characterization and Comparison of Ozone Exposure Indices Used in Assessing the Response of Loblolly Pine to Ozone. Atmospheric Environment. 26A(2):287-298.

Smith, L.A. and A.S. Lefohn. 1991. Co-Occurrence of Ozone and Wet Deposited Hydrogen Ion in the United States. Atmospheric Environment. 25A:2707-2716.

Lefohn, A.S. and J.K. Foley. 1991. Estimated Surface-level Ozone Exposures in Selected Class I Areas in the United States. Proceedings of the 84th Annual Meeting of the Air & Waste Management Association, Vancouver, British Columbia. Air & Waste Management Association, Pittsburgh, PA.

Lefohn, A.S and A.A. Lucier. 1991. Spatial and Temporal Variability of Ozone Exposure in Forested Areas of the United States and Canada: 1978-1988. J. Air Waste Manage. Assoc. 41(5):694-701.

Lefohn, A.S., D.S. Shadwick, and J.K. Foley. 1991. The Quantification of Surface Level Ozone Exposures Across the United States, pp. 197-224. In: Transactions of the Tropospheric Ozone and the Environment Specialty Conference. Air & Waste Management Association, Pittsburgh, PA.

Lefohn, A.S. and D.S. Shadwick. 1991. Ozone, Sulfur Dioxide, and Nitrogen Dioxide Trends at Rural Sites Located in the United States. Atmospheric Environment. 25A(2):491-501.

Lefohn, A.S., D.S. Shadwick, and V.A. Mohnen. 1990. The Characterization of Ozone Concentrations at a Select Set of High-Elevation Sites in the Eastern United States. Environmental Pollution. 67:147-178.

Lefohn, A.S. and C.M. Benkovitz. 1990. Air Quality Measurements and Characterizations for Vegetation Effects Research. Proceedings of the 83rd Annual Meeting of the Air & Waste Management Association, Pittsburgh, PA.

Krug, E.C. and A.S. Lefohn. 1990. The Importance of Natural Processes in Understanding Ecosystem Change: A Case Study of Limed Lakes. J. Air Waste Manag. Assoc. 40:846-854.

Lefohn, A.S., C.M. Benkovitz, R.L. Tanner, D.S. Shadwick, and L.A. Smith. 1990. Air Quality Measurements and Characterization for Terrestrial Effects Research. Report 7, In: NAPAP State of Science and State of Technology. National Acid Precipitation Assessment Program, Washington, DC. September, 1990.

Lefohn, A.S., S.V. Krupa, and D. Winstanley. 1990. Surface Ozone Exposures Measured at Clean Locations Around the World. Environmental Pollution. 63(3):189-224.

Legge, A.H., M. Nosal, E. Peake, M. Strosher, M. Hansen, and A.S. Lefohn. 1990. Air Quality of an Area Proximal to Anthropogenic Emissions, pp. 249-345. In: Acidic Deposition: Sulphur and Nitrogen Oxides. A.H. Legge and S.V. Krupa (eds). Lewis Publishers, Inc., Chelsea, MI.

Mohnen, V.A. and A.S. Lefohn. 1989. Temporal Development of the Pollution Load of Reactive Trace Gases in Forested Areas in the United States. In: Proceedings of the International Congress on Forest Decline Research: State of Knowledge and Perspectives. Friedrichshafen, Lake Constance, Federal Republic of Germany. October 2-6, 1989.

Winner, W.E., A.S. Lefohn, I.S. Cotter, C.S. Greitner, J. Nellessen, L.R. McEvoy, Jr., R.L. Olson, C.J. Atkinson, and L.D. Moore. 1989. Plant Responses to Elevational Gradients of O3 Exposures in Virginia. Proc. Natl. Acad. Sci. USA 86:8828-8832.

Lefohn, A.S., V.C. Runeckles, S.V. Krupa, and D.S. Shadwick. 1989. Important Considerations for Establishing A Secondary Ozone Standard to Protect Vegetation. JAPCA. 39(8):1039-1045.

Lefohn, A.S. and J.E. Pinkerton. 1988. High Resolution Characterization of Ozone Data for Sites Located in Forested Areas of the United States. JAPCA. 38(12):1504-1511.

Lefohn, A.S. and S.V. Krupa. 1988. Acidic Precipitation: A Technical Amplification of NAPAP's Findings. JAPCA. 38(6):766-776.

Lefohn, A.S. and P.M. Irving. 1988. Characterizing Ambient Ozone Exposure Regimes in Agricultural Areas. In: Proceedings of the 81st Annual Meeting of the Air Pollution Control Association in Dallas, TX, June 21-24, 1988. Pittsburgh, PA.

Marx, D.H., A.S. Lefohn, H.P. Knudsen, R.B. Husar, J. Paul, J.K. Forbus, J. Jorgensen, C. Wells, K. Ludovici, R. Beltz, H.D. Brown, R.L. Anderson, W. Clerke, R.J. Uhler, and C. Dull. 1988. Southern Forest Atlas Project. In: Proceedings of the 81st Annual Meeting of the Air Pollution Control Association in Dallas, TX, June 21-24, 1988. Pittsburgh, PA.

Knudsen, H.P. and A.S. Lefohn. 1988. The Use of Spatial Statistics to Characterize Regional Ozone Exposures, pp 91-105. In: Assessment of Crop Loss from Air Pollutants. W.W. Heck, O.C. Taylor, D.T. Tingey (eds). Elsevier Applied Science Publishing, London, U.K.

Lefohn, A.S., H.P. Knudsen, and L.R. McEvoy, Jr. 1988. The Use of Kriging to Estimate Monthly Ozone Exposure Parameters for the Southeastern United States. Environmental Pollution. 53:27-42.

Lefohn, A.S. 1988. Reply to comments by M.R. Ashmore and M.A.J. Parry and W. Day concerning the paper: A Comparison of Indices that Describe the Relationship Between Exposure to Ozone and Reduction in the Yield of Agricultural Crops. Atmospheric Environment. 22(9):2057-2064.

Lefohn, A.S., J.A. Laurence, and R.J. Kohut. 1988. Reply to comments by V.C. Runeckles concerning the paper: A Comparison of Indices that Describe the Relationship Between Exposure to Ozone and Reduction in the Yield of Agricultural Crops. Atmospheric Environment. 22(6):1241-1243.

Lefohn, A.S., J.A. Laurence, and R.J. Kohut. 1988. A Comparison of Indices that Describe the Relationship Between Exposure to Ozone and Reduction in the Yield of Agricultural Crops. Atmospheric Environment. 22(6):1229-1240.

Lefohn, A.S., C.E. Davis, C.K. Jones, D.T. Tingey, and W.E. Hogsett. 1988. Reply to comments by Marie and Ormrod concerning the paper: Co-Occurrence Patterns of Gaseous Air Pollutant Pairs at Different Minimum Concentrations in the United States. Atmospheric Environment. 22(6):1243.

Lefohn, A.S. and S.V. Krupa. 1988. The Relationship between Hydrogen and Sulfate Ions in Precipitation - A Numerical Analysis of Rain and Snowfall Chemistry. Environmental Pollution. 49:289-311.

Lefohn, A.S., C.E. Davis, C.K. Jones, D.T. Tingey, and W.E. Hogsett. 1987. Co-Occurrence Patterns of Gaseous Air Pollutant Pairs at Different Minimum Concentrations in the United States. Atmospheric Environment. 21(11):2435-2444.

Lefohn, A.S. and L.R. McEvoy, Jr. 1987. The Possible Effects of Acidic Deposition on Agricultural Crops. In: Proceedings of the Fourth Annual Pittsburgh Coal Conference. Pittsburgh, PA., September 28-October 2, 1987.

Pinkerton, J.E. and A.S. Lefohn. 1987. The Characterization of Ozone Data for Sites Located in Forested Areas of the Eastern United States. JAPCA. 37(9):1005-1010.

Pinkerton, J.E. and A.S. Lefohn. 1987. An Examination of Ozone Levels in Selected Forested Areas of the Eastern United States. In: Proceedings of the North American Oxidant Symposium. Quebec, February 25-27, 1987. Published by Quebec Ministry of the Environment, Sainte-Foy, Quebec, Canada..

Lefohn, A.S., H.P. Knudsen, J.L. Logan, J. Simpson, and C. Bhumralkar. 1987. An Evaluation of the Kriging Method To Predict 7-Hr Seasonal Mean Ozone Concentrations for Estimating Crop Losses. JAPCA. 37(5):595-602.

Lefohn, A.S. and V.C. Runeckles. 1987. Establishing a Standard to Protect Vegetation - Ozone Exposure/Dose Considerations. Atmospheric Environment. 21(3):561-568.

Lefohn, A.S., W.E. Hogsett, and D.T. Tingey. 1987. The Development of Sulfur Dioxide and Ozone Exposure Profiles that Mimic Ambient Conditions in the Rural Southeastern United States. Atmospheric Environment. 21(3):659-669.

Lefohn, A.S. and V.A. Mohnen. 1986. The Characterization of Ozone, Sulfur Dioxide, and Nitrogen Dioxide For Selected Monitoring Sites in the Federal Republic of Germany. JAPCA. 36(12):1329-1337.

Lefohn, A.S. and C.K. Jones. 1986. The Characterization of Ozone and Sulfur Dioxide Air Quality Data for Assessing Possible Vegetation Effects. JAPCA. 36(10):1123-1129.

Lefohn, A.S. and C.K. Jones. 1986. The Characterization of Air Quality Data for Biological Assessment Purposes. In: Proceedings of the 79th Annual Meeting of the Air Pollution Control Association in Minneapolis, MN, June 22-27, 1986. Pittsburgh, PA.

Lefohn, A.S., W.E. Hogsett, and D.T. Tingey. 1986. A Method for Developing Ozone Exposures that Mimic Ambient Conditions in Agricultural Areas. Atmospheric Environment. 20(2):361-366.

Pinkerton, J.E. and A.S. Lefohn. 1986. Characterization of Ambient Ozone Concentrations in Commercial Timberlands Using Available Monitoring Data. Tappi Journal. 69(4):58-62.

Lefohn, A.S. and H.M. Benedict. 1985. Exposure Considerations Associated with Characterizing Ozone Ambient Air Quality Monitoring Data. In: Evaluation of the Scientific Basis for Ozone/Oxidants Standards. Air Pollution Control Association. Pittsburgh, PA. pp. 17-31.

Lefohn, A.S. and G.O. Klock. 1985. Possible Importance of Forest Soil Processes in Defining Surface Water pH Depressions. JAPCA. 35:632-637.

Lefohn, A.S. and D.T. Tingey. 1985. Comments on Atmospheric Environment Paper: Injury Response of Phaseolus Vulgaris to Ozone Flux Density. Atmospheric Environment. 19(1):206-208.

Lefohn, A.S. and D.T. Tingey. 1984. The Co-Occurrence of Potentially Phytotoxic Concentrations of Various Gaseous Air Pollutants. Atmospheric Environment. 18(11):2521-2526.

Lefohn, A.S. and R.W. Brocksen. 1984. Acid Rain Effects Research - A Status Report. JAPCA. 34(10):1005-1013.

Lefohn, A.S. 1984. A Comparison of Ambient Ozone Exposures for Selected Nonurban Sites. In: Proceedings of the 77th Annual Meeting of the Air Pollution Control Association in San Francisco, California, June 24-29, 1984. Air Pollution Control Association. Pittsburgh, PA.

Lefohn, A.S. and R.W. Brocksen. 1984. Acid Rain Effects Research--A Status Report. In: Proceedings of the 77th Annual Meeting of the Air Pollution Control Association in San Francisco, California, June 24-29, 1984. Air Pollution Control Association. Pittsburgh, PA.

Lefohn, A.S. and D.T. Tingey. 1984. The Co-Occurrence of Potentially Phytotoxic Concentrations of Various Gaseous Air Pollutants. In: Proceedings of the 77th Annual Meeting of the Air Pollution Control Association in San Francisco, California, June 24-29, 1984. Air Pollution Control Association. Pittsburgh, PA.

Lefohn, A.S. 1983. The Availability and Analysis of Ozone Air Quality Data. In: Proceedings of the Symposium on Air Pollution and the Productivity of the Forest. Izaak Walton League of America.

Lefohn, A.S. and H.M. Benedict. 1983. The Potential for the Interaction of Acidic Precipitation and Ozone Pollutant Doses Affecting Agricultural Crops. In: Proceedings of the 76th Annual Meeting of the Air Pollution Control Association, Atlanta, GA. Air Pollution Control Association. Pittsburgh, PA.

Lefohn, A.S. and R.W. Brocksen. 1983. A Status Report: What is Currently Known About the Effects of Acid Rain on the Environment. Presented at the Forty-Third Annual Meeting of the Montana Academy of Sciences, Bozeman, Montana, April 8-9, 1983.

Brocksen, R.W. and A.S. Lefohn. 1983. Lake Acidification: Sources of Surface Water Acidification--Anthropogenic and Natural. In: Proceedings of the AIAA 21st Aerospace Sciences Meeting, Reno, NV, January 10-13, 1983.

Lefohn, A.S. 1983. Dose Response Considerations Associated with Acid Precipitation Effects on Vegetation. Published in the Proceedings of the Second National Symposium on Acid Rain, Greater Pittsburgh Chamber of Commerce, Pittsburgh, PA, October 6-7, 1982.

Lefohn, A.S. and H.M. Benedict. 1982. Development of a Mathematical Index that Describes Ozone Concentration, Frequency, and Duration. Atmospheric Environment. 16(10):2529-2532.

Lefohn, A.S. 1982. Acid Rain - Uncertainties in the Data Base and Its Application. In: Proceedings of the 63rd Annual Meeting Pacific Division, American Association for the Advancement of Science.

Lefohn, A.S. 1980. An Alternative Use of the Environmental Impact Statement, EIS: Digest of Environmental Impact Statements. Vol. 4, No. 5, May 1980. Abstract Nos. 80-0348-80-0426.

Lefohn, A.S. 1979. The Transfer of Energy Information Beyond Washington, ASIS Bulletin. Vol. 6, No. 2, December, 1979.

Lefohn, A.S. and K. Collins. 1979. New Trends in Energy Information Transfer. In: Proceedings of the 1979 National Conference on Technology for Energy Conservation, pp. 483-486.

Lefohn, A.S. 1979. Networking - A Way of Marketing Information, In: Proceedings of the State Energy Audit Impact '79 Conference, Dallas, Texas.

Lefohn, A.S. 1978. An Approach Toward Transferring Energy Information. In: Proceedings of the 1978 National Conference on Technology for Energy Conservation, pp. 726-728.

Lefohn, A.S. 1978. An Experiment in Cooperation. In: Proceedings of the 1978 Fall Meeting of the Federal Laboratory Consortium, Naval Weapons Center, China Lake, California.

Lefohn, A.S. 1978. Western Information Network on Energy, Solar Greenhouse Digest, Vol.1, No. 2, pp. 20-21.

Lewis, R.A., A.S. Lefohn, and N.R. Glass. 1975. An Investigation of the Bioenvironmental Effects of a Coal-Fired Power Plant. In: Proceedings of the Fort Union Coal Field Symposium. 5:531-536.

Lefohn, A.S., R.A. Lewis, and N.R. Glass. 1974. An Approach to the Investigation of the Bioenvironmental Impact of Air Pollution from Fossil Fuel Power Plants. Air Pollution Control Association. Preprint. 77-206, pp.1-22.

Hanst, P.L., A.S. Lefohn, and B.W. Gay, Jr. 1973. Detection of Atmospheric Pollutants at Parts-per-Billion Levels by Infrared Spectroscopy. Applied Spectroscopy. 27:188-198.

Lefohn, A.S., P.L. Hanst, and R.K. Patterson. 1972. Application of Fourier Spectroscopy for Air Pollution Measurements. Proceedings of Annual Pittsburgh Conference.

Lefohn, A.S. and W.T. Sayers. 1972. Remote Sensors and Their Application to Oceanographic Monitoring. Proceedings of the Means of Acquisition and Communication of Ocean Data.

Lefohn, A.S. and G.C. Pimentel. 1971. Infrared Spectrum of Gaseous CF by Rapid Scan Spectroscopy. The Journal of Chemical Physics. 20:1213-1217.

I-San, Lin R., C.S. Garner, and A.S. Lefohn. 1967. The Chemical Effects of Neutron Capture in CIS- and TRANS-Dichloro-bis (ethylene-diamine) Chromium (III) Nitrate. J. Inorganic Chem. 29:1553-1557.

McCullough, J.D. and A.S. Lefohn. 1966. Improved Methods for the Synthesis of the Cyclis Selinides, Selenacyclopentane. Inorganic Chemistry. 5:150.

Miscellaneous Publications

Lefohn, A.S. 1984. Lost in the Wilderness. QST. January 1984.

Lefohn, A.S., W. Standing, and P. Bondurant. 1979. The Solar Eclipse Net. QST. LXIII - 7, pp. 12-14.

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