Chemical Characterization of PCBs and Dioxins in the Waste PCB Stockpiles
スポンサーリンク
概要
- 論文の詳細を見る
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.
- 日本環境化学会の論文
日本環境化学会 | 論文
- 廃棄物埋立地浸出水および処理水中の無機成分、ジオキサン、フェノール類およびフタル酸エステル類の濃度
- 有機スズ代替船底防汚剤による広島湾北部海域の底質汚染状況
- 広島湾北部における有機スズ代替船底防汚剤による海域の汚染状況について
- 難燃処理済スチレンポリマー中のポリ臭素化ジフェニルエーテルの溶媒抽出及び熱脱着 GC/MS 分析
- プレカラム分離導入システムを用いたダイオキシン類の測定