書誌事項
- タイトル別名
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- Chemical Characterization of PCBs and Dioxins in the Waste PCB Stockpiles
- ホカン PCB ハイキブツ ノ PCBs オヨビ ダイオキシンルイ
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説明
PCBs, PCDDs, PCDFs, and coplanar PCBs in the waste PCB stockpiles were comprehensively, quantitatively, and congener-specifically analyzed by HRGC/HRMS, and compared to technical PCB such as Kanechlors. Composition of homologues and congeners of PCBs in the waste PCB stockpiles was almost similar to that of Kanechlors, although the ratio of low chlorinated homologues was increased in some fillers of the stabilizer for fluorescent lamp. Coplanar PCBs were dominant in the total of PCDDs/DFs and Co-PCBs, whereas PCDDs and PCDFs were only about 1/10, 000. As for the 2, 3, 7, 8-TCDD toxicity equivalent (TEQ), waste PCB stockpiles have a similar trend with the corresponding kinds of Kanechlor preparations.<BR>We focused the denaturation points of PCBs occurred in the process of using heating medium reported in Yusho accident, which had shown the increase in the ratio of PCDFs to total PCBs, the percentages of TEQ of PCDFs to total TEQ, and the percentages of TEQ of 2, 3, 4, 7, 8-PeCDF and 1, 2, 3, 4, 7, 8-HxCDF to total TEQ. Those points in the waste PCB stockpiles were compared to Kanechlor preparations and it revealed that the denaturation of PCBs did not occur after having used PCBs as transformer oil, capacitor oil and heat transformer medium.
収録刊行物
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- 環境化学
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環境化学 14 (3), 501-518, 2004
一般社団法人 日本環境化学会
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詳細情報 詳細情報について
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- CRID
- 1390282679346156672
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- NII論文ID
- 10013591663
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- NII書誌ID
- AN10547099
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- COI
- 1:CAS:528:DC%2BD2cXptVegtLc%3D
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- ISSN
- 18825818
- 09172408
- http://id.crossref.org/issn/09172408
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- NDL書誌ID
- 7098213
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- 本文言語コード
- ja
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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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- 抄録ライセンスフラグ
- 使用不可