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. 2009;15(6):1304-1316.
doi: 10.1080/10807030903306984.

Organophosphate Pesticide Residues in Drinking Water from Artesian Wells and Health Risk Assessment of Agricultural Communities, Thailand

S Jaipieam  1 , P Visuthismajarn, P Sutheravut, W Siriwong, S Thoumsang, M Borjan, M Robson
Affiliations

Organophosphate Pesticide Residues in Drinking Water from Artesian Wells and Health Risk Assessment of Agricultural Communities, Thailand

S Jaipieam et al. Hum Ecol Risk Assess. 2009.

Abstract

Organophosphate pesticide (OPPs) concentrations in artesian wells located in Thai agricultural and non-agricultural communities were studied during both wet and dry seasons. A total of 100 water samples were collected and subjects were asked to complete a survey. Gas chromatography flame photometric detector was used for OPP analysis. The average OPP concentration in the agricultural communities (0.085 and 0.418 microg/l in dry and wet season) was higher than in the non-agricultural communities (0.004 microg/l in both seasons). Ingestion of OPPs in contaminated water in the agricultural communities were estimated to be 0.187 and 0.919 microg/day during the dry and wet seasons, respectively, and 0.008 microg/day during both seasons in the non-agricultural communities. Agricultural communities were exposed to pesticide residues under the oral chronic reference dose. This study suggests that people in agricultural communities may be exposed to significantly greater levels of pesticides than non-agricultural populations during the dry and wet seasons (p < .001, .001).

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Figures

Figure 1
Figure 1
Locations of the artesian wells located in the Bang Rieng sub-district, Khuan Neing district, Songkhla Province [Farm areas (▲), n = 33; Reference areas (■), n = 17].
See this image and copyright information in PMC

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