A Simplified Determination Method of Dioxin Toxic Equivalent (TEQ) by Single GC/MS Measurement of Five Indicative Congeners
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- MINOMO Kotaro
- Center for Environmental Science in Saitama
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- OHTSUKA Nobutoshi
- Center for Environmental Science in Saitama
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- NOJIRI Kiyoshi
- Center for Environmental Science in Saitama
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- HOSONO Shigeo
- Center for Environmental Science in Saitama
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- KAWAMURA Kiyoshi
- Environmental Science and Infrastructure Engineering Division, Graduate School of Science and Engineering, Saitama University
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抄録
Here, we proposed a simplified determination method for dioxin (polychlorinated dibenzo-p-dioxins, polychlorinated dibenzofurans, and dioxin-like polychlorinated biphenyls (PCBs)) toxic equivalency (TEQ; based on the World Health Organization-2006 toxicity equivalent factor) in environmental samples collected in Japan. This method has estimated the total TEQ from the concentrations of only five indicative congeners, namely, 2,3,4,7,8-pentachlorodibenzofuran; 1,2,3,4,6,7,8-heptachlorodibenzo-p-dioxin; 1,2,3,7,8-pentachlorodibenzo-p-dioxin; and PCBs of IUPAC Nos. #126 and #105, which were obtained from a single GC/MS measurement using a combination of columns of 10-meter-long DB-5ms (injector side) and 20-meter-long DB-17ms (detector side). Applying this simplified determination method to various environmental samples (ambient air, river water, river sediment, and soil) showed that the estimated TEQ was in good agreement with TEQ obtained by the corresponding official methods. Moreover, this method could estimate the TEQ contributions of the four major dioxin sources in Japan: combustion by-products, pentachlorophenol formulations, chlornitrofen formulations and PCB products.
収録刊行物
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- Analytical Sciences
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Analytical Sciences 27 (4), 421-, 2011
社団法人 日本分析化学会
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詳細情報 詳細情報について
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- CRID
- 1390001204260833280
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- NII論文ID
- 130004442013
- 10028203619
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- NII書誌ID
- AA10500785
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- ISSN
- 13482246
- 09106340
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- NDL書誌ID
- 11042303
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 使用不可