Hu Xiao-yu, Wen Bei, Shan Xiao-quan
Research Centre for Eco-Environmental Sciences, Chinese Academy of Sciences, P.O. Box 2871, Beijing 100085, China.
J Environ Monit. 2003 Aug;5(4):649-53. doi: 10.1039/b304669a.
The problem of pollution by phthalates is of global concern due to their widespread occurrence, toxicity and endocrine disruption properties. The contamination by phthalates such as dimethyl phthalate (DMP), diethyl phthalate (DEP), di-n-butyl phthalate (DBP) and di(2-ethylhexyl) phthalate (DEHP) in 23 arable soils throughout China was investigated to evaluate the present pollution situation. The survey results demonstrated that phthalates were ubiquitous pollutants in soils in China. The total concentrations of phthalates differed from one location to another, and ranged from 0.89 to 10.03 mg kg(-1) with a median concentration of 3.43 mg kg(-1). Among the phthalates, DEHP was dominant and detected in all 23 soils. DEP and DBP were also in abundance, and DMP was rarely detected. Similar contamination patterns were observed in all 23 soils. A distinct feature of phthalate pollution in China was that the average concentration in northern China was higher than that in southern China. In addition, a close relationship was observed between the concentration of phthalates in soils and the consumption of agricultural film. The correlation showed that the application of agriculture film might be a significant pollution source of phthalates in arable soils of China. The potential risk of phthalates in soils was assessed on the basis of current guide values and limits.
邻苯二甲酸酯的污染问题因其广泛存在、毒性和内分泌干扰特性而受到全球关注。对中国23个耕地土壤中邻苯二甲酸二甲酯（DMP）、邻苯二甲酸二乙酯（DEP）、邻苯二甲酸二正丁酯（DBP）和邻苯二甲酸二（2-乙基己基）酯（DEHP）等邻苯二甲酸酯的污染情况进行了调查，以评估当前的污染状况。调查结果表明，邻苯二甲酸酯是中国土壤中普遍存在的污染物。邻苯二甲酸酯的总浓度因地点而异，范围为0.89至10.03 mg kg(-1)，中位数浓度为3.43 mg kg(-1)。在邻苯二甲酸酯中，DEHP占主导地位，在所有23个土壤中均有检出。DEP和DBP也大量存在，而DMP很少被检测到。在所有23个土壤中都观察到了类似的污染模式。中国邻苯二甲酸酯污染的一个明显特征是，中国北方的平均浓度高于南方。此外，观察到土壤中邻苯二甲酸酯的浓度与农用薄膜的消费量之间存在密切关系。相关性表明，农用薄膜的使用可能是中国耕地土壤中邻苯二甲酸酯的一个重要污染源。根据当前的指导值和限值对土壤中邻苯二甲酸酯的潜在风险进行了评估。
