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Evaluation of Whole Effluent Toxicity (WET) Proficiency Testing for Water Quality Measurement Agencies in Korea  

Park, Woo Sang (Watershed Ecology Research Team Water Environment Research Department National Institute of Environmental Research)
Kim, Sang Hun (Watershed Ecology Research Team Water Environment Research Department National Institute of Environmental Research)
Publication Information
Journal of Korean Society on Water Environment / v.29, no.4, 2013 , pp. 568-573 More about this Journal
Abstract
In this study, we conducted whole effluent toxicity (WET) proficiency testing based on the results which $EC_{50}$ value of 3 types (A, B, C) unknown samples calculated from 32 water quality measurement agencies in Korea. WET proficiency testing was expected to their improve of analysis skill and ensure reliability of analysis results. Ultimately, it is intended to promote the reliable enforcement of WET. WET proficiency testing was evaluated using the z-score, robust z-score and the results showed that 30 participating agencies were "compliance". In addition, $EC_{50}$ values of "unknown sample A" were the normal distribution. Therefore, "unknown sample A" was considered as the most suitable standard toxicity substance.
Keywords
Daphnia magna; Proficiency testing; Standard reference substance; WET (Whole Effluent Toxicity); WWTP (Wastewater Treatment Plant);
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Times Cited By KSCI : 1  (Citation Analysis)
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