Environmental & Molecular Toxicology

Jeffrey Jenkins

Professor
Dept: EMT (331 Weniger Hall)
Ph.D. 1981, Michigan State University
Phone: 541-737-5993
Fax: 541-737-5001
jenkinsj@ace.orst.edu

Research

Current research activities include field studies to examine the impact of pesticide use on air and water quality, studies designed to investigate human and wildlife exposure as a result of pesticide use in both agricultural and urban settings, studies which investigate how sub-lethal exposures effect fitness and survival, and studies that may assist in the development of technologies that mitigate adverse human and environmental impacts. Collaborative research investigates impacts of chemical use on individuals, populations, and ecosystems.

Links:

Participate in the USDA CSREES Cooperative Regional Research Project
W-1045 - Agrochemical Impacts on Human and Environmental Health:
Mechanisms and Mitigation.

National Pesticide Information Center

Integrated Plant Protection Center

USDA Western Region Integrated Pest Management Center

Outreach

As a member of Cooperative Extension, efforts are focused on education and training of pesticide users, health care, regulatory agency, Extension personnel, and members of the community interested in the impact of pesticides and other xenobiotics on human health and the environment. A major goal of research and Extension Programs is risk reduction that leads to improved human health and environmental protection, while allowing for the continued use of beneficial pesticides in an integrated approach to pest management. Duties include Co-Principle Investigator for the National Pesticide Information Center and Extension Toxicology Network (Extoxnet) cooperator. Participate in the OSU Integrated Plant Protection Center in cooperation with the USDA Western Region Integrated Pest Management Center.

Recent Publications

Johnson, K., P. C. Jepson, and J. J. Jenkins. Esfenvalerate-Induced Case-Abandonment in the Larvae of the Caddisfly Brachycentrus americanus. Accepted for publication in Environ. Toxicol. Chem. (April 2008).

Sandahl, J. F., D. H. Baldwin, J. J. Jenkins, and N. L. Scholz. 2007. A sensory system at the interface between urban stormwater runoff and salmon survival. Environ. Sci. Technol. 41 (8), 2998 -3004.

Warner, K.E. and J.J. Jenkins. 2007. Effects of 17 Alpha-Ethinylestradiol and Bisphenol A on Vertebral Development in the Fathead Minnow (Pimephales promelas). Environ. Toxicol. Chem. 26, 732-737.

Villeneuve, D.L., L. R. Curtis, J. J. Jenkins, K. E. Warner, F. Tilton, M. L. Kent, V. G. Watral, M. E. Cunningham, D. F. Markle, D. Oraphinkrissanakriangkrai, E. R. Johnson, R. Grove, K. A. Anderson. 2005. Environmental Stresses and Skeletal Deformities in Fish from the Willamette River, Oregon. Environ. Sci. Technol., 39, 3495-3506

Sandahl, J. F., D. H. Baldwin, J. J. Jenkins, N. L. Scholz. 2005. Comparitive thresholds for acetylcholinesterase inhibition and behavior impairment in coho salmon exposed to chlorpyrifos. Environ. Toxicol. Chem. 24 (1): 169-178.

Jenkins, J., H. Runes, T. Moate. 2004. Xylenes in Oregon Hazelnuts. Bull. Environ. Contam. Toxicol. 72:1152-1156.

Buchwalter, D.B., J.F. Sandahl, J.J. Jenkins, L.R. Curtis. 2004. Roles of uptake, biotransformation, and target site sensitivity in determining the differential toxicity of chlorpyrifos to second to fourth instar Chironomous riparius (Meigen). Aquatic Toxicol. 66:149-157.

Sandahl, J. F., D. H. Baldwin, J. J. Jenkins, N. L. Scholz. 2004. Odor-evoked field potentials as indicators of sublethal neurotoxicity in juvenile coho salmon (Oncorhynchus kisutch) exposed to copper, chlorpyrifos, or esfenvalerate. Can. J. Fish. Aquat. Sci. 61(3): 404-413

Buchwalter, D.B. J. J. Jenkins, and L. R. Curtis. 2003. Temperature Influences on Water Permeability and Chlorpyrifos Uptake in Aquatic Insects with Differing Respiratory Strategies. Environ. Toxicol. Chem. Vol. 22, No. 11, pp. 2806-2812.

Runes, H. B., J. J. Jenkins, J. A. Moore, P. J. Bottomley, and B. D. Wilson. 2002. Treatment of atrazine in nursery irrigation runoff by a constructed wetland. Water Res., Vol. 37, Issue 3, p. 539-550.

Sandahl, J. F, and J. J. Jenkins. 2002. Pacific Streelhead (Oncorhynchus Mykiss) exposed to chlorpyrifos: benchmark concentration estimates for acetylcholinesterase inhibition. Environ. Toxicol. Chem. 21: 2452-2458.

Buchwalter, D., J. J. Jenkins, L. R. Curtis. 2002. Respiratory strategy is a major determinant of [3H]water and [13C]chlorpyrifos uptake in aquatic insects. Can. J. Fish Aquat. Sci. 59: 1315-1322.

Buchwalter, D., D. Judd, J. Jenkins, L. Curtis. 2001. Testing Toxicological Hypotheses Based on Ecological Observations: A Case Study Using Aquatic Insects and Epithelia. In Society of Environmental Toxicology and Chemistry Globe, Vol. 2, No.1, p. 30-31.

Runes, H. B., J. J. Jenkins, and P. J. Bottomley. 2001. Atrazine degradation by bioaugmented sediment from constructed wetlands. Appl. Microbiol. Biotechnol., 57:427-432.

Peterson, J. L., P. C. Jepson, J. J. Jenkins. 2001. Effect of varying pesticide exposure duration and concentration on the toxicity of carbaryl to two field-collected stream invertebrates, Calineuria californica (Plecoptera: Perlidae) and Cinygma sp. (Ephemeroptera: Heptageniidae). Environ. Toxicol. Chem. Vol. 20 No. 10, pp 2215-2223.

Peterson, J. L., P. C. Jepson, J. J. Jenkins. 2001. A test system to evaluate the susceptibility of Oregon native stream invertebrates to triclopyr and carbaryl. Environ. Toxicol. Chem. Vol 20 No. 10, pp. 2205-2214.

Runes, H. B., P. J. Bottomley, R. N. Lerch, and J. J. Jenkins. 2001. Atrazine remediation in wetland microcosms. Environ. Toxicol. Chem. Vol. 20 No. 5. pp. 1059-1066.

Bailey, B. J. and J. J. Jenkins. 2000. Association of azinphos-methyl with rat erythrocytes and hemoglobin. Arch. Toxicol. 74: 322-328.

Recent Extension Publications

Jenkins, J.J. and S. Castignoli. 2004. Pesticide Monitoring in Hood River Area Streams. In: Hood River Growers and Shippers Association Best Management Practice Areawide II Handbook. http://community.gorge.net/hrgsa/table%20of%20contents.htm

Jenkins, J.J. and E. Foster. 2002. Hood River Watershed: Water Quality & Pesticides. Oregon Department of Environmental Quality/Oregon State University Extension Fact Sheet.

Jenkins, J. J. and P. A. Thomson. 1999. OSU Pesticide Properties Database. Oregon State University Extension & Station Communications. EM 8709, 10 p.

Rothlein, J. and J. J. Jenkins. 2000. Oregon Pesticide Use Reporting System Analytical Review. Report to the Oregon Department of Agriculture, 175 p. http://oda.state.or.us/pesticide/pubform/AnReview.pdf

Jepson, P., R. Dick, B. Boggess, J. J. Jenkins, and M. Gamroth. 2000. Oregon Agricultural Ecosystems. In: Oregon State of the Environment Report 2000. Oregon Progress Board, Salem OR, 97310.