Polychlorinated biphenyls (PCBs) in sediments/soils of different wetlands along 100-year coastal reclamation chronosequence in the Pearl River Estuary, China
详细信息 查看全文
- 作者：Qingqing Zhao ; Junhong Bai ; junhongbai@163.com" class="auth_mail" title="E-mail the corresponding author ; Qiongqiong Lu ; Zhaoqin Gao ; Jia Jia ; Baoshan Cui ; Xinhui Liu
- 关键词：PCB congeners ; Wetland sediments/soils ; Dioxin-like PCBs ; Total toxic equivalent ; Reclamation chronosequence
- 刊名：Environmental Pollution
- 出版年：2016
- 出版时间：June 2016
- 年：2016
- 卷：213
- 期：Complete
- 页码：860-869
- 全文大小：1739 K
文摘
- •
All detected PCB congeners and total PCBs decreased along sediment/soil profiles.
- •
Old wetlands tended to have higher PCB concentrations than younger wetlands.
- •
The dominant PCB congeners at all sampling sites were light PCB homologues.
- •
TEQ concentrations of 10 detected DL-PCBs were mainly affected by PCB126.
- •
Higher toxicity risks were found in riparian wetlands sediments.