Biotic and Abiotic Transformation Pathways of a Short-Chain Chlorinated Paraffin Congener, 1,2,5,6,9,10-C10H16Cl6, in a Rice Seedling Hydroponic Exposure System
文献类型:期刊论文
作者 | Chen, Weifang; Hou, Xingwang![]() ![]() ![]() ![]() ![]() |
刊名 | ENVIRONMENTAL SCIENCE & TECHNOLOGY
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出版日期 | 2022-05 |
期号 | 0页码:1-11 |
关键词 | POLYCHLORINATED-BIPHENYLS PCBS HYDROXYLATED METABOLITES ARABIDOPSIS-THALIANA PHYTOREMEDIATION TRANSLOCATION TRENDS AIR DECHLORINATION CONJUGATION EXCRETION |
ISSN号 | 0013-936X |
英文摘要 | In this work, a typical congener of short-chain chlorinated paraffins (SCCPs) with six chlorine atoms (CP-4, 1,2,5,6,9,10-C10H16Cl6, 250 ng/mL) was selected to elaborate the comprehensive environmental transformation of SCCPs in rice seedling exposure system. CP-4 was quickly absorbed, translocated, and phytovolatilized by seedlings with a small quality of CP-4 (5.81-36.5 ng) being detected in the gas phase. Only 21.4 +/- 1.6% of an initial amount (10,000 ng) of CP-4 remained in the exposure system at the end of exposure. Among the transformed CP-4, some were attributed to the degradation of the rhizosphere microorganism (9.1 +/- 5.8%), root exudates (2.2 +/- 4.2%), and abiotic transformation (3.0 +/- 2.8%) that were proved by several transformation products found in the root exudate exposure groups and unplanted controls, and a majority was phytotransformed by rice seedlings. Here, 61 products were determined through complex transformation pathways, including multihydroxylation, -HCl elimination, dechlorination, acetylation, sulfation, glycosylation, and amide acid conjugation. The acetylated and amide acid conjugates of CPs were first observed. Phase I and Phase II phytometabolic reactions of CPs were found intertwining. These findings demonstrate that multiactive transformation reactions contribute to the overlook of CPs accumulated in plants and are helpful for the environmental and health risk assessments of SCCPs in agricultural plants. |
源URL | [https://ir.rcees.ac.cn/handle/311016/47479] ![]() |
专题 | 生态环境研究中心_环境化学与生态毒理学国家重点实验室 |
通讯作者 | Liu, Jiyan |
作者单位 | 1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Chem & Ecotoxicol, Beijing 100085, Peoples R China 2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China 3.Jianghan Univ, Sch Environm & Hlth, Wuhan 430056, Peoples R China 4.Northeastern Univ, Coll Sci, Res Ctr Analyt Sci, Dept Chem, Shenyang 110819, Peoples R China 5.UCAS, Hangzhou Inst Adv Study, Sch Environm, Hangzhou 310000, Peoples R China |
推荐引用方式 GB/T 7714 | Chen, Weifang,Hou, Xingwang,Mao, Xiaowei,et al. Biotic and Abiotic Transformation Pathways of a Short-Chain Chlorinated Paraffin Congener, 1,2,5,6,9,10-C10H16Cl6, in a Rice Seedling Hydroponic Exposure System[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2022(0):1-11. |
APA | Chen, Weifang.,Hou, Xingwang.,Mao, Xiaowei.,Jiao, Suning.,Wei, Linfeng.,...&Jiang, Guibin.(2022).Biotic and Abiotic Transformation Pathways of a Short-Chain Chlorinated Paraffin Congener, 1,2,5,6,9,10-C10H16Cl6, in a Rice Seedling Hydroponic Exposure System.ENVIRONMENTAL SCIENCE & TECHNOLOGY(0),1-11. |
MLA | Chen, Weifang,et al."Biotic and Abiotic Transformation Pathways of a Short-Chain Chlorinated Paraffin Congener, 1,2,5,6,9,10-C10H16Cl6, in a Rice Seedling Hydroponic Exposure System".ENVIRONMENTAL SCIENCE & TECHNOLOGY .0(2022):1-11. |
入库方式: OAI收割
来源:生态环境研究中心
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