Title: Supervisor, Organic Chemistry & Environmental Toxicology

Phone Number: (608) 224-6269

E-mail: sgeis@mail.slh.wisc.edu

Education

• BS, Water Chemistry, University of Wisconsin - Stevens Point
• MS, Water Chemistry, University of Wisconsin - Madison

Fields of Interest

• Environmental Organic Chemistry
• Endocrine Disruptors
• Whole Effluent Toxicity Tests
• Sediment Toxicity Tests
• Algal Toxins

Publications

Geis, SW, Fleming, K, Mager, A, Reynolds, L. 2003. Modifications to the fathead minnow (Pimephales promelas) chronic test method to remove mortality due to pathogenic organisms. Environmental Toxicology & Chemistry. Vol 22, No. 10 pp. 2400-2404.

Rebecca J. Sheesley, James J. Schauer, Jocelyn D. Hemming, Miel A. Barman, Steven W. Geis, and James J. Tortorelli. Toxicity of ambient atmospheric particulate matter from the Lake Michigan (USA) airshed to aquatic organisms. Environmental Toxicology and Chemistry: Vol. 23, No. 1, pp. 133-140.

Cancilla, DA, Baird, JC, Geis, SW, Corsi SR. 2003. Studies of the environmental fate and effect of aircraft deicing fluids: detection of 5-methyl-1H-benzotriazole in the fathead minnow (Pimephales promelas). Environmental Toxicology & Chemistry. Vol 22, No. 1 pp. 134-140.

Amrhein J.F. and S. W. Geis. 2001. Mercury Concentrations in Yellow Perch (Perca flavescens) from Vilas County, Wisconsin: 1920s versus 1980s. Bulletin of Environmental Contamination & Toxicology. Vol 66. No. 5, pp. 638-645.

Corsi, S.R., D.W. Hall, and S.W. Geis. 2001. Aircraft and Runway Deicers at General Mitchell International Airport, Milwaukee, Wisconsin, USA. 2. Toxicity of Aircraft and Runway Deicers. Environmental Toxicology & Chemistry. Vol 20. No. 7, pp. 1483-1490.

Geis, S.W., K. Fleming, E. Korthals, G. Searle, L. Reynolds, and D. Karner. 2000. Modifications to the Algal Growth Inhibition Test for Use as a Regulatory Assay. Environmental Toxicology and Chemistry. Vol 19. No. 1, pp. 36-41.

Masnado, R.G., S.W. Geis, and W.C. Sonzogni.1995. Comparative Acute Toxicity of a Synthetic Mine Effluent to Ceriodaphnia dubia, larval fathead minnow, and the freshwater mussel, Anodonta imbecilis. Environmental Toxicology and Chemistry. Vol 14. No. 11, pp. 1913-1920.

Summary

My research activities have been in the field of Environmental Toxicology and more recently, Organic Chemistry. My research areas include endocrine disruption using the E-screen and frog assay. My activities in bioassay method development include improvements to the algae test and the chronic fathead minnow assay.