Occurrence, compositional profiles and possible sources of polybrominated diphenyl ethers in urban soils of Shanghai, China.
Occurrence, compositional profiles and possible sources of polybrominated diphenyl ethers in urban soils of Shanghai, China.
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DOI：
10.1016/j.chemosphere.2010.04.007
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发表时间：
2010-06
期刊：
影响因子：
8.8
通讯作者：
Yufeng Jiang;Xuetong Wang;K. Zhu;Ming-hong Wu;G. Sheng;Jia-mo Fu
中科院分区：
文献类型：
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作者：
Yufeng Jiang;Xuetong Wang;K. Zhu;Ming-hong Wu;G. Sheng;Jia-mo Fu
通过长期的野外调查，分析了上海城区55个表层土壤样品中多溴二苯醚（PBDE）的存在、组成特征及可能来源。结果显示，44个靶PBDE中检出29个PBDE。∑29PBDE的浓度范围为23.6 ~ 3797ngkg−1，平均值为735ngkg−1。在0.291-2910ngkg - 1范围内，BDE209是主要的同系物，平均值为477ngkg - 1，这与商业十溴联苯醚（DeBDE）混合物是中国使用的主要技术多溴联苯醚混合物的事实一致。与此同时，多溴二苯醚同系物分析和主成分分析（PCA）也表明，土壤样品中多溴二苯醚的主要来源与普遍使用的技术性多溴二苯醚有关。相关性分析表明，除BDE209外，总有机碳（TOC）与各PBDE之间存在显著相关性，说明TOC对土壤中PBDE污染有显著影响。
By a long-term field investigation, occurrence, compositional profiles and possible sources of polybrominated diphenyl ethers (PBDE) were analyzed with 55 samples collected from surface soil at the urban areas of Shanghai. The results showed that 29 PBDE were detected among 44 target PBDEs. The concentrations of ∑29PBDE ranged from 23.6 to 3797ngkg−1with a mean value of 735ngkg−1. BDE209 was the predominant congener in a range of 0.291–2910ngkg−1with a mean of 477ngkg−1in agreement with the fact that commercial decabromodiphenyl ether (DeBDE) mixtures were dominant technical PBDEs mixtures used in China. Meanwhile, PBDE congeners and homologues analysis and principal component analysis (PCA) also revealed that the major source of PBDE in the soil samples was associated with the prevalent use of technical DePBDE. The correlation analysis proved that there was a significant correlation between total organic carbon (TOC) and individual PBDEs excluding BDE209, suggesting the significant influence of TOC on PBDE contamination in soil.