Levels and trends of chlorinated hydrocarbon contaminants in the breast milk of Canadian women.
Levels and trends of chlorinated hydrocarbon contaminants in the breast milk of Canadian women.
复制标题
加拿大妇女母乳中氯化烃污染物的水平和趋势。
DOI：
10.1080/02652038609373598
复制
发表时间：
1986
期刊：
影响因子：
--
通讯作者：
W. F. Sun
中科院分区：
文献类型：
--
作者：
J. Mes;D. Davies;D. Turton;W. F. Sun
对来自加拿大 5 个不同地区的总共 210 份母乳样本进行了分析，其中包括多氯联苯 (PCB)、六氯 1,3-丁二烯、十种氯化苯、两种氯化萘、灭蚁灵、灭蚁灵、α、β 和 γ 六氯环己烷、α 和 γ 氯丹、羟氯丹、反式九氯、对，对'-滴滴涕和一些类似物、七氯环氧化物、狄氏剂和八氯苯乙烯。没有证据表明母乳中存在六氯-1,3-丁二烯、灭蚁灵、八氯苯乙烯、氯化萘或四氯苯。除 1,2-二氯苯、γ-六氯环己烷、α-氯丹和γ-氯丹以及对，对'-TDE 等较少观察到的物质外，所有样品中均发现了其他化合物的残留，而邻，对'-滴滴涕仅在约四分之一的样品中发现。自 1967 年以来，环氧化物七氯、狄氏剂和对,对'-滴滴涕及相关残留物的稳定下降是显而易见的。然而，与此同时，自 1970 年以来 PCB 残留水平明显增加。这种明显的增加应该谨慎对待，因为这种增加很大程度上可能归因于更好的采样和分析技术。加拿大的母乳残留水平与其他工业国家的相似。残留水平的区域差异似乎很小。
A total of 210 breast milk samples from 5 different regions across Canada were analyzed for polychlorinated biphenyls (PCBs), hexachloro-1,3-butadiene, ten chlorinated benzenes, two chlorinated naphthalenes, Mirex, photomirex, alpha, beta and gamma hexachlorocyclohexane, alpha and gamma chlordane, oxychlordane, trans-nonachlor, p,p'-DDT and some analogs, heptachlor epoxide, dieldrin and octachlorostyrene. There was no evidence for the presence of hexachloro-1,3-butadiene, Mirex, octachlorostyrene, chlorinated naphthalenes or tetrachlorobenzenes in the breast milk. Residues of other compounds were found in all samples, except 1,2-dichlorobenzene, gamma hexachlorocyclohexane, alpha and gamma chlordane and p,p'-TDE, which were less frequently observed, while o,p'-DDT was only found in approximately one quarter of all samples. Since 1967, a steady decline in heptachlor epoxide, dieldrin and p,p'-DDT and related residues is apparent. At the same time however, there is an apparent increase in PCB residue levels since 1970. This apparent increase should be viewed with some caution, since much of this increase might be attributed to better sampling and analytical techniques. Residue levels of breast milk in Canada were similar to those found in other industrial nations. Regional differences in residue levels appeared to be minimal.