Document Detail

Environmental residues and biomonitoring estimates of human insecticide exposure from treated residential turf.
MedLine Citation:
PMID:  11462149     Owner:  NLM     Status:  MEDLINE    
Intentional and unavoidable human exposure is a consequence of using pesticides to nurture and protect residential turf. Limited exposure studies have been conducted for assessing potential human exposure of turf residues. Exposure was measured in persons who performed a 20-minute structured activity (Jazzercise) on chlorpyrifos (CP)-treated Kentucky bluegrass (12 +/- 4 microg CP/cm(2)). CP exposure was measured by determining urine clearance of the 3,5,6-trichloro-2-pyridinol (TCP). Study participants wore either 100% cotton whole body dosimeters (union suit, gloves, and socks) or exercise suits (shorts and a sports top or one-piece suit with similar amounts of exposed skin). An average of 1.6 mg CP/person was extracted from whole body dosimeters worn by study participants. The measured residue transfer was well below the 35 mg CP/person estimated using the US EPA standard operating procedures. Biomonitoring based on urine clearance of TCP indicated that an average of 1.3 microg CP/kg was absorbed. Absorbed dosages (0.5 to 2 microg CP/kg) derived from transferable residue on cotton cloths pressed to the turf with a weighted roller were similar to estimates from biomonitoring. A very limited amount of CP applied to turf is available for transfer and absorption during intensive human contact.
C E Bernard; H Nuygen; D Truong; R I Krieger
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Archives of environmental contamination and toxicology     Volume:  41     ISSN:  0090-4341     ISO Abbreviation:  Arch. Environ. Contam. Toxicol.     Publication Date:  2001 Aug 
Date Detail:
Created Date:  2001-07-19     Completed Date:  2001-09-06     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0357245     Medline TA:  Arch Environ Contam Toxicol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  237-40     Citation Subset:  IM    
Personal Chemical Exposure Program, Department of Entomology, University of California, Riverside, California 92521, USA.
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MeSH Terms
Biological Markers / analysis
Chlorpyrifos / analysis*,  metabolism
Environmental Exposure*
Insecticides / analysis*,  metabolism
Pyridones / urine*
Reg. No./Substance:
0/Biological Markers; 0/Insecticides; 0/Pyridones; 2921-88-2/Chlorpyrifos; 6515-38-4/3,5,6-trichloro-2-pyridinol

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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