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Selecting analytical target pesticides in monitoring: Sensitivity analysis and scoring

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Title: Selecting analytical target pesticides in monitoring: Sensitivity analysis and scoring
Authors: Tani, Koji Browse this author
Matsui, Yoshihiko Browse this author →KAKEN DB
Iwao, Kensuke Browse this author
Kamata, Motoyuki Browse this author
Matsushita, Taku Browse this author
Keywords: Pesticide runoff
Index
Ranking
Risk assessment
Issue Date: 1-Mar-2012
Publisher: Elsevier
Journal Title: Water Research
Volume: 46
Issue: 3
Start Page: 741
End Page: 749
Publisher DOI: 10.1016/j.watres.2011.11.036
PMID: 22154284
Abstract: Measuring river water concentrations of all pesticides applied in a catchment area is a daunting task. In this study, we conducted sensitivity analyses using a diffuse pollution hydrologic model to quantitatively evaluate the influence of pesticide properties (e.g., log K_[OC], degradability [half-life]) on concentrations of rice-farming pesticides in river water. Using the results of the analyses, score tables were systematically designed for the pesticide properties such that the sum of the scores for a particular pesticide, designated as the contamination index, was proportional to the expected/predicted concentration of that pesticide in river water. The contamination indexes for pesticides applied in three river basins were calculated and compared with the corresponding observed pesticide concentrations. Correlations between contamination indexes and observed concentrations were fairly good. Pesticides were ranked according to the quotients obtained by dividing the pesticide concentrations predicted from the contamination indexes by the corresponding drinking-water quality guideline values, and pesticide candidates to be monitored were successfully selected on the basis of a threshold quotient.
Type: article (author version)
URI: http://hdl.handle.net/2115/48548
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 松井 佳彦

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