Increase of Dietary Chlordane Intake in Homes Treated for Termite Control
Increase of Dietary Chlordane Intake in Homes Treated for Termite Control
复制标题
增加白蚁防治家庭膳食氯丹摄入量
DOI：
10.3358/shokueishi.31.238
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发表时间：
1990
期刊：
影响因子：
--
通讯作者：
R. Tanaka
中科院分区：
文献类型：
--
作者：
Y. Konishi;T. Yakushiji;S. Taguchi;T. Nishimune;R. Tanaka
调查了膳食摄入的三氯甲烷（CHL），以澄清人类接触途径的贡献程度。对居住在近畿地区的25名家庭主妇和居住在北海道江别市的25名家庭主妇的75份日常饮食样品进行了CHL复合物（6种化合物）和4种其他有机氯化合物的分析。在近畿地区，CHL的平均摄入量约为2微克/天，高于DDT、DDE和六氯苯。尽管其他有机氯在相同范围内，但近畿地区所有CHL复合物的摄入量明显高于江别。在未经氯化铅处理的家庭中分析的所有污染物中，观察到化学品和鱼类的饮食摄入量之间存在密切和统计学上显著的关系，证实了其他人报告的结果。然而，在使用氯化锂的家庭中，氯化锂复合物的摄入量与鱼类的摄入量无关，尽管滴滴涕、DDE和六氯苯的摄入量与鱼类的摄入量有关。CHL处理和未处理的家庭之间的化学品摄入量的差异的显着性进行了检查，使用学生的t检验。DDT、DDE、HCB和HCE在两组间无明显变化。然而，接受治疗的家庭的CHL复合物摄入量明显高于未接受治疗的家庭。此外，CHL复合物在处理家庭的饮食中的色谱模式是非常具体的，这表明技术CHL中相对挥发性的成分可能被某些食品吸收。这些结果表明，在未经处理的家庭中，人类对氯化胆碱的接触主要取决于鱼类的摄入量，与对多氯联苯和滴滴涕的接触相似。另一方面，在使用氯化锂的家庭中，也有其他途径的参与，这可能是人类接触氯化锂的主要来源。
Dietary intakes of chlordane (CHL) were investigated in order to clarify the degree of contribution of the routes of human exposure. Seventy-five daily diet samples from 25 housewives living in the Kinki area and 25 samples from 25 housewives living in Ebetsu City, Hokkaido, were analyzed for CHL complex (6 compounds) and 4 other organochlorine compounds. Mean intake of CHL in the Kinki area, approximately 2μg/day, was higher than those of DDT, DDE and HCB. Intakes of all of the CHL complex in the Kinki area were significantly higher than those in Ebetsu, though other organochlorines were in the same ranges. Close and statistically significant relationships between dietary intakes of chemicals and fishes were observed for all of the pollutants analyzed in non-CHL-treated homes, confirming the results reported by others. In the CHL-treated homes, however, intake of CHL complex were not related to the amount of fish intake even though intakes of DDT, DDE and HCB were, again, related to that of fishes. The significance of the differences of chemical intakes between CHL-treated and non-treated homes was examined by using student's t test. No significant change was observed for DDT, DDE, HCB or HCE between these 2 groups. Intakes of CHL complex for treated homes were, however, remarkably higher than those of non-treated homes. Moreover, the chromatographic patterns of CHL complex in the diet from treated homes were very specific, indicating that relatively volatile components in technical CHL might be absorbed by certain foodstuffs. These results show that human exposure to CHL in nontreated homes depends mainly on the intakes of fishes, similar to the exposure to PCB and DDT. On the other hand, in a CHL-treated homes, participation of some other route, which could be a major source of human exposure, was indicated.