ABSTRACT
The pesticides used in forestry since the 1940s may have caused some environmental impact at the time of application. Pesticides are applied to control pests for public health or aesthetic reasons in and around homes, yards, gardens, public parks, urban forests, golf courses, and public and commercial buildings. Pesticides, particularly the organochlorine insecticides, are often observed in bed sediment and aquatic biota in remote areas of the United States and of the rest of the world. Another source of pesticides to surface water systems, and thus to bed sediment and aquatic biota, is from urban areas. For pesticides in bed sediment and aquatic biota, there are two categories of physical and chemical properties that govern their behavior and allow for the interpretive and predictive roles of chemodynamics. The primary sources of a pesticide to surface waters are seasonal application of the pesticide, and transport of pesticide-contaminated soil to surface waters.
