文献类型：期刊文献

英文题名：Contamination characteristics and potential health risk of brominated flame retardants in paddy soils and rice plants around a typical e-waste recycling site in south China

作者：Luo, Kailun[1];Qiao, Zhihua[1];Liang, Weiyu[1];Lu, Cong[1];Fu, Mengru[1];Zhou, Shanqi[1];Han, Yanna[1];Peng, Cheng[1];Zhang, Wei[1]

机构：[1]East China Univ Sci & Technol, Sch Resource & Environm Engn, State Environm Protect Key Lab Environm Risk Asses, Shanghai 200237, Peoples R China

年份：2023

卷号：334

外文期刊名：ENVIRONMENTAL POLLUTION

收录：;EI(收录号：20232914401625);WOS:【SCI-EXPANDED(收录号:WOS:001045633500001)】；

基金：This research was supported by the National Natural Science Foun-dation of China (41877124, 21737005) .

语种：英文

外文关键词：Brominated flame retardants; Paddy soil; Rice; Bioaccumulation; Risk assessment

摘要：Brominated flame retardants (BFRs) are widely used in various productions. As typical BFRs, polybrominated diphenyl ethers (PBDEs) are prohibited because of their toxicity and persistence. Some of the alternatives to PBDEs, new brominated flame retardants (NBFRs), have also been found in the environment and some have assigned hazardous properties and were categorized as persistent. In this study, a typical e-waste dismantling area was chosen as the study area, and the soil and rice samples were collected from the paddy fields around the circular economy park in Guiyu, China. The contaminations of PBDEs and NBFRs in soils and rice plants were detected, and the health risks associated with consumption and exposure to the environment were calculated as well. The concentrations of n-ary sumation PBDEs and n-ary sumation NBFRs in soil ranged from 283 to 928 & mu;g/kg and 54.7-437 & mu;g/kg, respectively. In rice plants, the majority of BFRs were concentrated in the following order: root > leaf > stem > grain. Additionally, only the PBT exhibited a stronger bioaccumulation ability in rice with the bioconcentration factors more than 1.00. The results of the health quotient calculation shown that BDE-47 might have an impact on people's health that only the HQ of BDE-47 in the soil was higher than 1.00, while there had no significant health risk in grain of BFRs. We believe that our work could assist researchers in investigating and revealing the human health effects of BFRs in soil and rice.