Handwipe sampling and analysis procedure for the measurement of dermal contact with pesticides.
A handwipe sampling and analysis procedure was developed for the measurement of dermal contact to pesticides. This procedure utilizes cellulose dressing sponges wetted with 2-propanol. A two-step wiping procedure is described that ensures that the entire hand is sampled. Removal efficiency experiments show that dry residues of the pesticides chlorpyrifos and pyrethrin I are quantitatively removed from hands immediately following contact. Results suggest that the procedure may remove pesticide residues that are deeply embedded in the skin and not removed by soap-and-water washing. Extraction efficiency studies for 29 other pesticides show that the proposed extraction method may be applicable for a wide range of pesticides including phenoxy-acid herbicides. Field testing of the procedure indicates that it is easily implemented by sampling personnel and readily accepted by children.
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Southwest Research Institute, San Antonio, Texas 77828-0510, USA.
Camann
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DE
Harding
H J
HJ
Villalobos
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K
Lewis
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RG
D002648:Child; D002675:Child, Preschool; D004390:Chlorpyrifos / Q000032:analysis; D004781:Environmental Exposure; D005618:Fresh Water; D008401:Gas Chromatography-Mass Spectrometry; D006225:Hand; D006801:Humans; D007306:Insecticides / Q000032:analysis*; D016273:Occupational Exposure; D011722:Pyrethrins / Q000032:analysis; D012867:Skin / Q000737:chemistry* / Q000473:pathology
D007306:Insecticides; D011722:Pyrethrins; D004390:Chlorpyrifos; C009119:pyrethrin I