Conventional and emerging halogenated flame retardants (HFRs) in sediment of Yangtze River Delta (YRD) region,East China |
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| Authors: | Bingqing Zhu James CW Lam Shouye Yang Paul KS Lam |
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| Institution: | 1. State Key Laboratory in Marine Pollution, City University of Hong Kong, Kowloon, Hong Kong Special Administrative Region, PR China;2. Research Centre for the Oceans and Human Health, City University of Hong Kong, Shenzhen Research Institute Building, Shenzhen 518057, PR China;3. Department of Biology and Chemistry, City University of Hong Kong, Kowloon, Hong Kong Special Administrative Region, PR China;4. State Key Laboratory of Marine Geology, Key Laboratory of Yangtze River Water Environment, Ministry of Education, Tongji University, Shanghai 200092, PR China |
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| Abstract: | The occurrence and distribution of polybrominated diphenyl ethers (PBDEs) and eleven non-PBDE halogenated flame retardants (HFRs) were investigated through the collection of marine and river sediment from Yangtze River Delta (YRD), East China. Among them, PBDEs, decabromodiphenyl ethane (DBDPE) and 1,2-dibromo-4-(1,2-dibromoethyl)cyclohexane (TBECH) were the three predominant HFRs with the highest detection frequencies in the sediment. Significant correlation between PBDEs and DBDPE indicated that they may have the similar emission sources. The production and use of DBDPE is growing rapidly and comparable concentrations between PBDEs and DBDPE in YRD sediment may suggest that DBDPE will likely become one of the major HFRs emerging in the environment in China. Of the seven detected non-PBDE HFRs, this is the first time that TBECH was reported in the Chinese environment and its predominance and prevalence in the YRD may imply its extensive use in these areas. |
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| Keywords: | Halogenated flame retardants PBDEs TBECH DBDPE Sediment Yangtze River Delta |
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