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Abstract
Dermal contact with contaminated soils may be a significant route of human exposure to toxic substances under some circumstances. Soil adherence to skin is an important determinant of such exposures, but factors influencing soil adherence are generally not well characterized. Petroleum hydrocarbons are often found in contaminated soils at relatively high concentrations. Results of an investigation of the influence of motor oil on soil adherence to skin are reported here. Studies were conducted at three oil concentrations (0, 1, and 10% by weight) under wet and dry conditions in three different soil types. Only two of six soil/moisture combinations showed consistently increasing adherence with increasing oil content. Overall, an increase was found in wet, but not dry soils. The results indicate that high concentrations of petroleum contaminants can increase the dermal adherence of soil, but that the magnitude of the effect is likely to be modest.
Notes
Address all correspondence to: John C. Kissel, Department of Environmental Health, Box 357234, University of Washington, Seattle, WA 98195–7234
