Institute for Sustainability and Peace, United Nations University, Shibuya-ku, Tokyo, Japan.
Chemosphere. 2010 Apr;79(3):299-304. doi: 10.1016/j.chemosphere.2010.01.023. Epub 2010 Feb 7.
China is a country with the most severe termite damage in the world. Mirex is one of the two effective orgochlorine pesticides used in China for termite control. A high-resolution gas chromatography/high-resolution mass spectrometry (HRGC/HRMS) was employed for mirex analysis in soil samples from Liyang city, which once was an important mirex production base in China. The detected mirex levels in soil in Liyang were 2.9-4300pgg(-1)dw (dry weight), with the geometric mean 26.83pgg(-1)dw and the geometric standard deviation 5.02. The highest level occurred at the site near the Liyang Guanghua Chemical Factory. It implies the contribution of industrial activities to the mirex pollution in the surrounding environment. However, the factory only influenced very limited adjacent areas. A Level III fugacity model was developed to study the mirex pollution in Chinese provinces. The results show that the highest concentration occurred in Jiangxi Province, which has the largest consumption of mirex among Chinese provinces. On a regional scale, the calculated concentrations of mirex in the environment are generally so low that it indicates no harm to human and organisms. The total amount of mirex in the environment in China was estimated to be about 25.12tons, most of which exists in soil.
中国是世界上受白蚁危害最严重的国家之一。灭蚁灵是中国用于白蚁防治的两种有效有机氯农药之一。本研究采用高分辨气相色谱/高分辨质谱（HRGC/HRMS）对曾经是中国重要的灭蚁灵生产基地的溧阳市土壤样品中的灭蚁灵进行了分析。溧阳市土壤中灭蚁灵的检出浓度为 2.9-4300pg/g（干重），几何平均值为 26.83pg/g，几何标准差为 5.02。最高浓度出现在离溧阳市光华化工厂较近的地点，这表明工业活动对周围环境的灭蚁灵污染有一定贡献。然而，该工厂仅对附近非常有限的区域有影响。建立了一个三级逸度模型来研究中国各省的灭蚁灵污染。结果表明，浓度最高的是江西省，它是中国各省中灭蚁灵消耗量最大的省份。在区域尺度上，环境中灭蚁灵的计算浓度通常很低，表明对人类和生物没有危害。估计中国环境中的灭蚁灵总量约为 25.12 吨，其中大部分存在于土壤中。
