Potential health risks from indoor exposure to chlorpyrifos (O,O-diethyl O-[3,5,6-trichloro-2-pyridyl] phosphorothioate).
A four-season, indoor air quality survey was conducted in Southern Louisiana to determine the indoor air levels of the pesticide chlorpyrifos. Gas chromatographic analysis of 213 air samples collected from 53 houses revealed levels of chlorpyrifos ranging from non-detected to 2.13 micrograms/m3. Using the Florida-Pinella exposure guideline (24-hr exposure to chlorpyrifos at 0.48 microgram/m3), it was noted that 14% of the samples exceeded this guideline. The exposure of occupants to the indoor air concentrations of the pesticide, however, were below either the irritation or the odor thresholds, and effects on acute and chronic health responses remains uncertain.
Lemus
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Department of Environmental Health Sciences, Tulane University School of Public Health and Tropical Medicine, New Orleans, LA 70112, USA. assafa@mailhost.tcs.tulane.edu
Abdelghani
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Akers
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Horner
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D016902:Air Pollution, Indoor / Q000032:analysis*; D004390:Chlorpyrifos / Q000032:analysis*; D004781:Environmental Exposure; D004782:Environmental Health; D004784:Environmental Monitoring / Q000706:statistics & numerical data; D006798:Housing; D006801:Humans; D007306:Insecticides / Q000032:analysis*; D008145:Louisiana; D012306:Risk
D007306:Insecticides; D004390:Chlorpyrifos