Identification of Species-Specific Prey Uptake and Biotransformation of Chiral Polychlorinated Biphenyls (PCBs) in Riparian and Aquatic Food Webs
文献类型：期刊论文
| 作者 | Zheng, Xiaobo4; Wu, Xiaodan4; Lu, Ruifeng2,3; Cao, Xingpei2,3; Mai, Bi-Xian1,2,3 |
| 刊名 | ENVIRONMENTAL SCIENCE & TECHNOLOGY
 |
| 出版日期 | 2023-11-15 |
| 卷号 | 57期号:48页码:20282-20291 |
| 关键词 | chiral PCBs enantiomer fraction biomagnificationfactor amphibian bird |
| ISSN号 | 0013-936X |
| DOI | 10.1021/acs.est.3c07377 |
| 英文摘要 | The atropisomeric enrichment of chiral polychlorinated biphenyls (PCBs) can trace the movement of PCBs through food webs, but it is a challenge to elucidate the prey uptake and stereoselective biotransformation of PCBs in different species. The present study investigated the concentrations and enantiomer fractions (EFs) of chiral PCBs in invertebrates, fishes, amphibians, and birds. Chiral PCB signature was estimated in total prey for different predators based on quantitative prey sources. The nonracemic PCBs in snakehead (Ophiocephalus argus) were mainly from prey. EFs of PCBs in amphibians and birds were mainly influenced by biotransformation, which showed enrichment of (+)-CBs 132 and 135/144 and different enantiomers of CBs 95 and 139/149. Biomagnification factors (BMFs) of chiral PCBs were higher than 1 for amphibians and passerine birds and lower than 1 for kingfisher (Alcedo atthis) and snakehead. BMFs were significantly correlated with EFs of chiral PCBs in predators and indicative of atropisomeric enrichment of PCBs across different species. Trophic magnification factors (TMFs) were higher in the riparian food web than in the aquatic food web because of the high metabolism capacity of chiral PCBs in aquatic predators. The results highlight the influences of species-specific prey sources and biotransformation on the trophic dynamics of chiral PCBs. |
| WOS研究方向 | Engineering ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:001114479800001 |
| 源URL | [http://ir.gig.ac.cn/handle/344008/79201]  |
| 专题 | 有机地球化学国家重点实验室 |
| 通讯作者 | Zheng, Xiaobo |
| 作者单位 | 1.CAS Ctr Excellence Deep Earth Sci, Guangzhou 510640, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Peoples R China 3.Chinese Acad Sci, Guangzhou Inst Geochem, Guangdong Key Lab Environm Protect & Resources Uti, Guangzhou 510640, Peoples R China 4.South China Agr Univ, Coll Resources & Environm, Guangdong Prov Key Lab Agr & Rural Pollut Abatemen, Guangzhou 510642, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zheng, Xiaobo,Wu, Xiaodan,Lu, Ruifeng,et al. Identification of Species-Specific Prey Uptake and Biotransformation of Chiral Polychlorinated Biphenyls (PCBs) in Riparian and Aquatic Food Webs[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2023,57(48):20282-20291. |
| APA | Zheng, Xiaobo,Wu, Xiaodan,Lu, Ruifeng,Cao, Xingpei,&Mai, Bi-Xian.(2023).Identification of Species-Specific Prey Uptake and Biotransformation of Chiral Polychlorinated Biphenyls (PCBs) in Riparian and Aquatic Food Webs.ENVIRONMENTAL SCIENCE & TECHNOLOGY,57(48),20282-20291. |
| MLA | Zheng, Xiaobo,et al."Identification of Species-Specific Prey Uptake and Biotransformation of Chiral Polychlorinated Biphenyls (PCBs) in Riparian and Aquatic Food Webs".ENVIRONMENTAL SCIENCE & TECHNOLOGY 57.48(2023):20282-20291. |
入库方式： OAI收割
来源：广州地球化学研究所
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