Simonich S L, Hites R A
School of Public and Environmental Affairs, Indiana University, Bloomington 47405, USA.
Science. 1995 Sep 29;269(5232):1851-4. doi: 10.1126/science.7569923.
The global distribution of 22 potentially harmful organochlorine compounds was investigated in more than 200 tree bark samples from 90 sites worldwide. High concentrations of organochlorines were found not only in some developing countries but also in industrialized countries, which continue to be highly contaminated even though the use of many of these compounds is restricted. The distribution of relatively volatile organochlorine compounds (such as hexachlorobenzene) is dependent on latitude and demonstrates the global distillation effect, whereas less volatile organochlorine compounds (such as endosulfan) are not as effectively distilled and tend to remain in the region of use.
在来自全球90个地点的200多个树皮样本中，对22种潜在有害有机氯化合物的全球分布情况进行了调查。不仅在一些发展中国家，而且在工业化国家也发现了高浓度的有机氯，尽管其中许多化合物的使用受到限制，但这些国家仍受到高度污染。相对挥发性有机氯化合物（如六氯苯）的分布取决于纬度，并显示出全球蒸馏效应，而挥发性较小的有机氯化合物（如硫丹）则不能被有效蒸馏，倾向于留在使用地区。
