Hashimoto S, Hyeon-Seo C, Morita M
National Institute for Environmental Studies, Tsukuba, Japan.
Chemosphere. 1998 Aug;37(5):951-9. doi: 10.1016/s0045-6535(98)00097-6.
PCDDs and PCDFs were analyzed by high resolution GC-MS in two species of shellfish collected from southern coast of Korea. PCDDs and PCDFs were detected from all samples. Total concentration of PCDDs and PCDFs ranged from 4.4 to 19 pg/g wet weight and from 2.5 to 26 pg/g wet weight, respectively. By using a method of cluster analysis based on congener profiles, samples were categorized into two groups, "the urban group" and "the rural group". A tendency that TEQ levels of the urban group were higher than those of the other group was observed. Although a reliable source of dioxins in the samples was identified in this study, it was suggested that combustion sources are responsible for occurrence of dioxins in samples of both groups.
采用高分辨率气相色谱-质谱联用仪对采自韩国南部海岸的两种贝类中的多氯二苯并二噁英（PCDDs）和多氯二苯并呋喃（PCDFs）进行了分析。所有样本均检测出了PCDDs和PCDFs。PCDDs和PCDFs的总浓度分别为4.4至19皮克/克湿重以及2.5至26皮克/克湿重。通过基于同系物谱的聚类分析方法，样本被分为两组，即“城市组”和“农村组”。观察到城市组的毒性当量（TEQ）水平高于另一组的趋势。尽管本研究确定了样本中二噁英的可靠来源，但仍表明燃烧源是两组样本中二噁英产生的原因。
