养殖场周边土壤-蔬菜系统磺胺类药物残留及风险评价  

Distribution and Risk Assessment of Sulfonamides Antibiotics in Soil and Vegetables from Feedlot Livestock

作　　者：金彩霞[1] 司晓薇 王子英[1] 张琴文 

机构地区：[1]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,新乡453007

出　　处：《环境科学》2016年第4期1562-1567,共6页Environmental Science

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)

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.Soil and vegetable samples were collected from 13 different livestock farms of different sizes in Xinxiang of China,and the residues of three sulfonamides including sulfadiazine,sulfamonomethoxine,and sulfamethoxazole were analyzed by HPLC with a fluorimetric detector. The results indicated that the total concentration ranges of the three sulfonamides in soil and vegetable were 7. 60-176. 26 μg·kg^-1 and ND-32. 70 μg·kg^-1,respectively. The mean concentrations were 70. 73 μg·kg^-1 and 7. 08 μg·kg^-1 for soil and vegetables. The residue levels in soil were all lower than the ecotoxic effect trigger value（ 100 μg·kg^-1） set by the Veterinary Medicine International Coordination Commission,indicating the low risk for organisms in soil. The concentrations of three sulfonamides varied significantly in different kinds of vegetables and were all lower than the acceptable daily intake values [50 μg·（ kg·d）^-1]set by Joint FAO / WHO Expert Committee on Food Additives. But we cannot neglect the potential ecotoxicity and resistance for human via food chain.

关 键 词：磺胺类药物 土壤 蔬菜 残留 风险评价 

分 类 号：X171.5[环境科学与工程—环境科学] X820.4