韩国马山市海湾多溴二苯醚和多氯联苯的时间趋势、空间分布和陆地来源。
Temporal trend, spatial distribution, and terrestrial sources of PBDEs and PCBs in Masan Bay, Korea.
机构信息
Oil and POPs Research Group, Korea Ocean Research and Development Institute, 391 Jangmok-myon, Geoje-shi 656-834, Republic of Korea.
出版信息
Mar Pollut Bull. 2010 Oct;60(10):1836-41. doi: 10.1016/j.marpolbul.2010.05.023. Epub 2010 Jun 26.
Congener specific determination of polybrominated diphenyl ethers (PBDEs) and polychlorinated biphenyls (PCBs) was carried out in 21 surface sediment samples and a sediment core from Masan Bay, Korea. Among the 40 PBDE congeners targeted only 29 were detectable. PBDE congener profile within sediments was dominated by BDE-209 followed by BDEs-99, -47, -153 and -183, sequentially. In surface sediments, the average ΣPBDEs levels approached that of average ΣPCBs values. However, trends observed in the sediment core suggest that this pattern will alter over time and result in higher surface sediment PBDE concentrations than PCBs in future. Various diffuse and point sources for PBDEs and PCBs were identified in this location. Shipping and other industrial activities were associated with PCB contamination while domestic and industrial waste discharges corresponded with PBDE contamination. The average concentration for PBDEs and PCBs in surface sediments were 5.7, 7.2 ng/g dry weight, respectively.
在韩国马山市湾的 21 个表层沉积物样本和一个沉积物芯中进行了多溴二苯醚 (PBDEs) 和多氯联苯 (PCBs) 的同系物特异性测定。在所针对的 40 种 PBDE 同系物中，只有 29 种是可检测到的。沉积物中的 PBDE 同系物分布以 BDE-209 为主，其次是 BDEs-99、-47、-153 和 -183。在表层沉积物中，ΣPBDEs 的平均水平接近 ΣPCBs 的平均水平。然而，沉积物芯中观察到的趋势表明，这种模式将随着时间的推移而改变，导致未来表层沉积物中的 PBDE 浓度高于 PCB。在该地区确定了各种 PBDEs 和 PCBs 的弥散和点源。船舶运输和其他工业活动与 PCB 污染有关，而生活和工业废水排放则与 PBDE 污染有关。表层沉积物中 PBDEs 和 PCBs 的平均浓度分别为 5.7 和 7.2ng/g 干重。
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