Pesticide Contamination in Varied Pesticide-Use Settings
New pesticides are developed continually, and increasingly, degradation byproducts of legacy and current-use pesticides are discovered. Information on the environmental occurrence of these chemicals is needed to evaluate their potential environmental and human health significance. This project activity has two-fold objectives: (1) develop methods to measure new pesticides and their byproducts in samples of various environmental media at concentrations relevant to assessing their persistence, transport, and fate; and (2) gather information on the environmental occurrence of these chemicals in sensitive and/or susceptible ecosystems near areas of common use of the pesticide, such as areas of similar land use, crop types, and/or farming practices. Pesticide-use studies in selected settings include:
Herbicides and other Agricultural Chemicals -- Midwest Cornbelt
Cotton Agriculture -- Southern United States
Agricultural Chemicals in Ground Water -- Plains, Georgia [Completed]
Transport of Herbicides in Streams and Shallow Ground Water , Cedar River, Iowa [Completed]
Program Headlines Related to Pesticide Research
- Glyphosate and its degradation product AMPA occur frequently and widely in U.S. soils, surface water, groundwater, and precipitation: Battaglin, W.A., Meyer, M.T., Kuivila, K.M., and Dietze, J.E., 2014, Journal of the American Water Resources Association, v. 50, no. 2, p. 275-290, doi:10.1111/jawr.12159.
- Contaminants in stream sediments from seven United States metropolitan areas--Part II-Sediment toxicity to the amphipod Hyalella azteca and the midge Chironomus dilutus: Kemble, N.E., Hardesty, D.K., Ingersoll, C.G., Kunz, J.L., Sibley, P.K., Calhoun, D.L., Gilliom, R.J., Kuivila, K.M., Nowell, L.H., and Moran, P.W., 2013, Archives of Environmental Contamination and Toxicology, v. 64, no. 1, p. 52-64, doi:10.1007/s00244-012-9815-y.
- Accumulation of pesticides in Pacific chorus frogs (Pseudacris regilla) from California’s Sierra Nevada Mountains, USA: Smalling, K.L., Fellers, G.M., Kleeman, P.M., and Kuivila, K.M., 2013, Environmental Toxicology and Chemistry, v. 32, no. 9, p. 2026-2034, doi:10.1002/etc.2308 (public access pdf file).
- Featured collection introduction--Contaminants of emerging concern II: Battaglin, W.A., and Kolok, A., 2014, JAWRA Journal of the American Water Resources Association, v. 50, no. 2, p. 261-265, doi:10.1111/jawr.12176.
- Persistent organic contaminants in Saharan dust air masses in West africa, Cape Verde and the eastern Caribbean: Garrison, V.H., Majewski, M.S., Foreman, W.T., Genualdi, S.A., Mohammed, A., and Massey Simonich, S.L., 2014, Science of the Total Environment, v. 468–469, p. 530-543, doi:10.1016/j.scitotenv.2013.08.076.