Publication: Ethion exposure and biological monitoring in vegetable farmers
Issued Date
2011-03-01
Resource Type
ISSN
01252208
01252208
01252208
Other identifier(s)
2-s2.0-79953697419
Rights
Mahidol University
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SCOPUS
Bibliographic Citation
Journal of the Medical Association of Thailand. Vol.94, No.3 (2011), 286-294
Suggested Citation
Pornpimol Kongtip, Sirinnapa Changfuang, Witaya Yoosook, Suttinun Chantanakul, Dusit Sujirarat Ethion exposure and biological monitoring in vegetable farmers. Journal of the Medical Association of Thailand. Vol.94, No.3 (2011), 286-294. Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/12593
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Title
Ethion exposure and biological monitoring in vegetable farmers
Other Contributor(s)
Abstract
Objective: To modify the method of analysis of urinary diethyl phosphate (DEP) in order to determine the relationship between atmospheric ethion concentration and urinary DEP concentration. Materials and Method: A cross-sectional study was conducted by collecting atmospheric ethion in the breathing zone of 28 farmers following the NIOSH 5600 method. Urine samples were also collected to analyze urinary DEP concentrations by a modified method using a Gas Chromatography-Flame Photometric Detector (FPD). Results: The average atmospheric ethion concentration in the breathing zone of farmers was 0.036 ± 0.018 mg/m 3 . The average urinary DEP in pre-shift and post-shift was 0.030 ± 0.06 and 0.851 ± 1.80 mg/g of creatinine respectively. The average DEP during work shifts was 0.53 ± 0.27, and ranged from 0.12 to 1.16 mg/g of creatinine. A high correlation coefficient (r = 0.645) was found between atmospheric ethion concentrations and urinary DEP concentrations at p < 0.001. Conclusion: The modified method provided a reliable result and the urinary DEP during work shifts was found to be a reliable biomarker of ethion exposure.