• 关键词：垃圾填埋场  抗生素  固体废弃物  渗滤液

• 基金项目：国家自然科学基金（No.21577038，31370510）；科技部科技惠民计划项目（No.2013GS310202）

• 奚慧
• 华东师范大学生态与环境科学学院, 上海城市生态过程与生态恢复重点实验室, 上海 200241

• 孙金昭
• 华东师范大学生态与环境科学学院, 上海城市生态过程与生态恢复重点实验室, 上海 200241

• 谢冰
• 华东师范大学生态与环境科学学院, 上海城市生态过程与生态恢复重点实验室, 上海 200241

• 摘要：为研究城市生活垃圾填埋场中抗生素的残留及其浓度特征，采集上海市老港填埋场中固体废弃物和渗滤液样本，采用超高效液相色谱三重四级杆质谱联用技术（UPLC-3Q-MS）检测抗生素浓度.结果显示，固体废弃物和渗滤液中四环素类、磺胺类、喹诺酮类、大环内脂类及β-内酰胺类抗生素的检出浓度范围分别为0.1~4.9 μg·kg^-1，nd~3245.0 ng·L^-1、nd~16.3 μg·kg^-1，nd~1360.0 ng·L^-1、0.2~367.5 μg·kg^-1，nd~6950.0 ng·L^-1、LOQ~8.4 μg·kg^-1，0.3~9450.0 ng·L^-1及nd~2.8 μg·kg^-1，nd~293.5 ng·L^-1.抗生素浓度在垃圾填埋场中的分布存在时空差异，填埋场1.5 m处固体废弃物中抗生素的浓度高于0.5 m处，新鲜渗滤液中抗生素浓度大于老龄渗滤液.研究结果为可今后垃圾填埋场中残留抗生素的治理提供理论依据.

• Abstract：To study the distributional characteristics and contents of antibiotic residuals in municipal solid waste (MSW) landfill, samples including refuse and leachates were collected from the Laogang MSW landfill in Shanghai. The ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-3Q-MS) was used to quantify antibiotics concentrations in landfill samples. The obtained results shows that the concentrations of tetracyclines, sulfonamides, quinolones, macrolides and beta-lactams in solid wastes and leachates ranged from 0.1~4.9 μg·kg^-1, nd~3245.0 ng·L^-1、nd~16.3 μg·kg^-1, nd~1360.0 ng·L^-1、0.2~367.5 μg·kg^-1, nd~6950.0 ng·L^-1、LOQ~8.4 μg·kg^-1, 0.3~9450.0 ng·L^-1 and nd~2.8 μg·kg^-1, nd~293.5 ng·L^-1 respectively. Spatial and temporal differences regarding distribution of antibiotics were found in landfills:antibiotic concentrations in the 1.5 m-layer samples were higher than in 0.5 m ones. The total concentrations of detectable antibiotics in fresh leachates were higher than the mature leachates. The results in this study can provide the theoretical basis for the management of residual antibiotics in landfill.

• Key words：landfill  antibiotic  solid waste  leachate

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