Marine Environment Research Division, National Fisheries Research and Development Institute, Busan 612-902, Republic of Korea.
Mar Pollut Bull. 2011 Jun;62(6):1352-61. doi: 10.1016/j.marpolbul.2011.03.029. Epub 2011 Apr 17.
Spatial and temporal trends of organic contaminants in sediments along the Korean coast were estimated through a nationwide environmental monitoring program from 2001 to 2007. The concentrations of organic contaminants in sediments along the Korean coast were relatively low or moderate compared with foreign studies. The mean detection frequencies of organic contaminants during the seven years were highest for PAHs and PCDD/Fs, followed by PCBs, DDTs, TBT and HCHs in decreasing order. Based on published sediment quality guidelines, the ecological risks of persistent organic pollutants in sediments along the Korean coast were low, despite exceedances of the ERL at 2-6 sites for DDTs, and the TEL at 9-18 sites for PCDD/Fs. Nonparametric tests to assess temporal trends revealed significant decreasing trends for PCBs and PCDD/Fs at four and three sites, respectively (p<0.05). These results reflect the effects of regulations on the use of those contaminants.
通过 2001 年至 2007 年的全国性环境监测计划，估算了韩国沿海沉积物中有机污染物的时空变化趋势。与国外研究相比，韩国沿海沉积物中有机污染物的浓度相对较低或处于中等水平。在这七年中，有机污染物的平均检出频率以多环芳烃（PAHs）和二恶英/呋喃（PCDD/Fs）最高，其次是多氯联苯（PCBs）、滴滴涕（DDTs）、三丁基锡（TBT）和六氯环己烷（HCHs），依次递减。根据已发布的沉积物质量准则，尽管在 2-6 个地点 DDT 的 ERL 值和 9-18 个地点 PCDD/Fs 的 TEL 值超标，但韩国沿海沉积物中持久性有机污染物的生态风险仍然较低。为评估时间变化趋势而进行的非参数检验显示，在四个和三个地点，多氯联苯和二恶英/呋喃分别呈现显著下降趋势（p<0.05）。这些结果反映了法规对这些污染物使用的影响。
