Associate Committee on Agricultural and Forestry Aviation, National Research Council Canada, pp. Presented at the Society of Toxicology 2005 Annual Meeting, New Orleans, LA, March 6-10, 2005. Paustenbach D, Richter R, Finley B, Williams P, Sheehan P. Proceedings, Symposium on the Future Role of Aviation in Agriculture. Prediction of ecotoxicological behavior of chemicals: Relationship between physico-chemical properties and bioaccumulation of organic chemicals in the mussel, Mytilus edulis. Evaluation of proposed threshold doses for chrysotile exposure and respiratory disease. Presented at the Society for Risk Analysis 2004 Annual Meeting, Palm Springs, CA, December 5-8, 2004.

The health hazards posed by chromium contaminated soils in residential and industrial areas: Conclusions of an expert panel. Presentation at the Society for Risk Analysis 23rd Annual Meeting, Baltimore, MD, December 7-10, 2003. The risks of MTBE relative to other VOCs in public drinking in California.

Assessment of the human health risks posed by exposure to chromium contaminated soils at residential sites. Presented at the Society for Risk Analysis 23rd Annual Meeting, Baltimore, MD, December 7-10, 2003. Residential exposures to elemental mercury due to releases from gas pressure regulators.

He specialized in assessing and quantifying potential historical, current and future exposures to chemicals in the environment, workplace and home, and associated health risks. Sheehan has designed and directed studies to simulate and reconstruct historical exposures in occupational and residential settings to benzene, MTBE, TCE, PCE and other volatile chemicals in solvents, and asbestos in adhesives, roofing products, joint compound and talc, as well as lead, phthalates, formaldehyde and various other chemicals in consumer products. He has also evaluated potential future chemical exposures associated with new facilities, combustion sources and products. Dermal versus total uptake of benzene from mineral spirits solvents during parts washing. Brorby GP, Sheehan PJ, Berman DW, Bogen KT, Holm SE. Simulation tests to assess occupational exposure to airborne asbestos from asphalt-based roofing products. Sheehan PJ, Warmerdam JM, Ogle S, Humphrey DN, Patenaude SM. The risk of MTBE relative to other VOCs in public drinking water in California. Paustenbach D, Lu E, Finley B, Brorby G, Sheehan P. An evaluation of the historical exposures of mechanics to asbestos in brake dust. Tsuji J, Williams P, Edwards M, Allamneni K, Kelsh M, Paustenbach D, Sheehan P. Data available for evaluating the risks and benefits of MTBE and ethanol as alternative fuel oxygenates. Sheehan PJ, Wenning RJ, Wright BD, King NM, Paustenbach DJ, Becklin DM. Presentation at the Society for Risk Analysis Annual Meeting and Exposition, 1998. Probabilistic methods to estimate potential exposures of endangered species.

He has prepared and presented product risk assessments under California’s Proposition 65 and U. He assists companies develop new products with testing and prospective risk assessment including assessment of allergic contact dermatitis risk from chemical allergens released from electronic wearable products. Sheehan also has designed and directed wildlife population assessments, aquatic toxicity tests, toxicity identification evaluations, risk allocation evaluations, and probabilistic uncertainty analyses. Sheehan frequently interacts with local, state, and federal regulatory agencies, and has testified as an expert before government panels and in legal proceedings on toxicology, exposure and human health and wildlife risks from chemical exposures and has communicated risk issues in public, regulatory and legal forums. Assessment of health risk from historical use of cosmetic talcum powder. Exposures from chrysotile-containing joint compound: evaluation of new model relating respirable dust to fiber concentrations. Berman DW, Brorby GP, Sheehan PJ, Bogen KT, Holm SE. automobile mechanics involved in brake repair (circa 1950s-2000). Evaluating the risk to aquatic ecosystems posed by leachate from tire shred fill in roads using toxicity tests, toxicity identification evaluations, and groundwater modeling. Environmental and occupational health hazards associated with the presence of asbestos in brake linings and pads (1900 to present): A state-of-the-art review. Evaluation of mercury in urine as an indicator of exposure to low levels of mercury vapors. Presented at Annual Meeting Society for Risk Analysis, Washington, DC, 1997. Probabilistic methods to estimate potential exposures of endangered species to emissions associated with proposed incinerators.

Presented at the Society for Risk Analysis 2004 Annual Meeting, Palm Springs, CA, December 5-8, 2004. Aquatic toxicity testing: Assessing the safe use of scrap tires as roadbed fill.

ASTM STP 920, American Society of Testing and Materials, Philadelphia, PA, 1986. A multi-level approach to the assessment of ecotoxicological effects in a heavy metal polluted stream. Finley B, Richter R, Mowat F, Mlynarek S, Paustenbach D, Warmerdam J, Sheehan P. Evaluating asbestos exposure with vehicle brake cleaning and machining activities using short-term and TWA measurements.

Characterization of the cumulative asbestos exposures of U. Finley B, Mowat F, Richter R, Brorby G, Craven B, Sheehan P.

Appraisal of Tests to Predict the Environmental Behavior of Chemicals. Sheehan P, Brorby G, Kalmes R, Mowat F, Richter R, Finley B. Presented at the American Industrial Hygiene Conference and Expo, Anaheim, CA, May 23-26, 2005.

More on the dynamics of dust generation: The effects of mixing and sanding chrysotile, calcium carbonate and other components on the characteristics of joint compound dusts. Sheehan PJ, Brorby GP, Berman DW, Bogen KT, Holm SE. Simulation tests to assess occupational exposure to airborne asbestos from artificially weathered asphalt-based roofing products. Sheehan P, Bogen K, Hicks J, Goswami E, Brorby G, Lau E. Simulation of benzene exposure during use of a mineral spirits solvent to clean elevator bearing housings. Finley BL, Richter RO, Mowat FS, Mlynarek S, Paustenbach DJ, Warmerdam JL, Sheehan PJ. Presented at SETAC 18th Annual Meeting, San Francisco, CA, 1997. Probabilistic methods to develop toxicity reference values for ecological effects assessments.