养殖场周边土壤-蔬菜系统磺胺类药物残留及风险评价

发布时间：2019-08-20 09:52

【摘要】：采集了新乡市周边不同种类、规模的养殖场施用粪便的土壤以及蔬菜样品,并采用高效液相-荧光分析法测定了样品中磺胺嘧啶、磺胺间甲氧嘧啶和磺胺甲恶唑这3种主要磺胺类药物的残留情况.结果表明,3种磺胺类药物在土壤和蔬菜中的总含量范围分别为7.60~176.26μg·kg~(-1)和ND~32.70μg·kg~(-1),平均含量分别为70.73μg·kg~(-1)和7.08μg·kg-1.土壤中药物平均残留量均低于兽药国际协调委员会规定的生态毒害效应触发值(100μg·kg~(-1)).不同种类蔬菜中药物的残留量不同,青菜、油麦菜、白菜和大葱这4种蔬菜中3种磺胺类药物的平均残留量最高.所有蔬菜样品中3种药物的残留水平未超过磺胺类药物的日允许摄入量,但仍不能忽略人类长期食用所导致人体抗药细菌或基因的形成.
[Abstract]:Soil and vegetable samples were collected from different kinds and scales of farms around Xinxiang City. The residues of sulfadimine, m-methoxypyrimidine and sulfamethoxazole in the samples were determined by high performance liquid chromatography-fluorescence analysis. The results showed that the total contents of the three sulfonamides in soil and vegetables were 7.60 ~ 176.26 渭 g kg~ (- 1) and ND~ 32.70 渭 g kg~ (- 1), respectively, and the average contents were 70.73 渭 g kg~ (- 1) and 7.08 渭 g kg-1., respectively. The average residue of drugs in soil was lower than the trigger value of ecotoxic effects specified by the International Coordinating Committee of Veterinary drugs (100 渭 g kg~ (- 1). The residues of drugs in different kinds of vegetables were different. The average residues of three sulfonamides were the highest among the four vegetables, green vegetables, wheat vegetables, cabbage and onions. The residual level of three drugs in all vegetable samples did not exceed the daily allowable intake of sulfonamides, but the formation of drug-resistant bacteria or genes caused by long-term human consumption could not be ignored.
【作者单位】：河南师范大学环境学院河南省环境污染控制重点实验室黄淮水环境与污染防治省部共建教育部重点实验室;
【基金】：国家自然科学基金项目(21107023) 中国博士后科学基金项目(20110491001) 河南省高等学校青年骨干教师资助计划项目(2015GGJS-087)
【分类号】：X592;X82

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