Novel brominated flame retardant (NBFR) concentrations and spatial distributions in global fishmeal
文献类型： 外文期刊
作者： Li, Xiaomin 1 ; Dong, Shujun 1 ; Wang, Ruiguo 1 ; Wang, Peilong 1 ; Ruan, Zheng 2 ; Sun, Xiaoming 2 ; Rao, Qinxiong 3 ; L 1 ;
作者机构： 1.CAAS, Inst Qual Stand & Testing Technol Agroprod, Beijing 100081, Peoples R China
2.Nanchang Univ, Sch Food Sci & Technol, State Key Lab Food Sci & Technol, Nanchang 330047, Jiangxi, Peoples R China
3.Shanghai Acad Agr Sci, Inst Agrofood Stand & Testing Technol, Shanghai 201403, Peoples R China
关键词： Fishmeal; Novel brominated flame retardants; Animal feeds; Global
期刊名称：ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY （ 影响因子：6.291； 五年影响因子：6.393 ）
ISSN： 0147-6513
年卷期： 2019 年 170 卷
页码：
收录情况： SCI
摘要： Novel brominated flame retardants (NBFRs), which are lipophilic compounds that have been widely applied after the phasing-out of legacy BFRs, can bioaccumulate through the food chain. However, information on NBFRs in animal feeds, the beginning of farm-to-fork pathway, is very limited. Fishmeal is one of the most widely applied feedstuff worldwide. The present study identified eleven NBFRs from ninety-two globally collected fishmeal samples with levels in the range of 0.13-822 (mean: 15.1 +/- 85.5) ng/g lipid weight (lw). Hexabromobenzene (HBB) and pentabromotoluene (PBT) were the most prevalent contributors (detection frequencies: 95.7% and 73.9%, respectively), and decabromodiphenylethane (DBDPE) was the weightiest contributor (accounted for 67.1% of the Sigma NBFRs, mean: 12.1 +/- 84.8 ng/g 1w). From a geographical view, the highest NBFR level was found in Chinese fishmeal. The NBFRs fell within an order of magnitude in South America, Southeast Asia, Europe and United States. DBDPE was predominant in the fishmeal collected from China, South America and United States, but it was not detected in European fishmeal. The NBFR levels are significantly lower compared to the polybrominated diphenyl ethers (PBDEs) (p < 0.01), indicating that the distribution of NBFRs was not as wide as PBDEs in fishmeal. DBDPE was significantly correlated with BDE209 (r = 0.557, p < 0.01), which implies that the two chemicals might have similar sources. Quantitative structure-activity relationship (QSAR)results imply that the NBFRs might have similar persistence and biomagnification potential as legacy lipophilic POPs.
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