| 郝雨阳,宋鹏,徐彦军,田光明,许艇.苏州生态涵养区农业土壤中农药残留的分布特征及风险评估[J].农业环境科学学报,2023,42(9):1974-1982. |
| 苏州生态涵养区农业土壤中农药残留的分布特征及风险评估 |
| Residue distribution and risk assessment of pesticides in the farmland soil of Suzhou ecological conservation area |
| 投稿时间：2022-11-30 修订日期：2023-03-09 |
| DOI：10.11654/jaes.2022-1232 |
| 中文关键词: 土壤 农药残留 分布特征 风险评估 |
| 英文关键词: soil pesticides residue distribution characteristic risk assessment |
| 基金项目:政府间国际科技创新合作重点项目（2019YFE0115800）；苏州市农业科技创新项目（SNG2020041） |
| 作者 | 单位 | E-mail | | 郝雨阳 | 中国农业大学资源与环境学院, 北京 100193
中国农业大学生物多样性与有机农业北京市重点实验室, 北京 100193
中国农业大学有机循环研究院(苏州), 苏州 215000 | | | 宋鹏 | 中国农业大学资源与环境学院, 北京 100193
中国农业大学生物多样性与有机农业北京市重点实验室, 北京 100193
中国农业大学有机循环研究院(苏州), 苏州 215000 | | | 徐彦军 | 中国农业大学理学院应用化学系农药创新研究中心, 北京 100193 | | | 田光明 | 中国农业大学有机循环研究院(苏州), 苏州 215000
浙江大学环境与资源学院, 杭州 310058 | | | 许艇 | 中国农业大学资源与环境学院, 北京 100193
中国农业大学生物多样性与有机农业北京市重点实验室, 北京 100193
中国农业大学有机循环研究院(苏州), 苏州 215000 | xuting@cau.edu.cn |
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| 中文摘要: |
| 为评价苏州生态涵养发展实验区农业土壤中农药的污染状况与潜在风险，运用气相色谱-质谱法（GC-MS）检测了苏州生态涵养区63个位点的农业土壤中46种农药的残留水平，结合非度量多维尺度分析其时空分布特征，并以风险商法评估其生态风险。结果显示：土壤样品中共检出有机氯、有机磷、噻二嗪及拟除虫菊酯4类农药，其平均浓度分别为31.8、56.9、109.8 μg·kg-1和71.9 μg·kg-1。p'p-DDE检出范围最广（检出率91%~100%），噻嗪酮检出浓度最高（1 061.1 μg·kg-1）。生态风险评估显示，27%的土壤样点存在潜在生态高风险，风险来自p，p'-DDE、噻嗪酮、水胺硫磷、联苯菊酯、氯氰菊酯、氰戊菊酯、溴氰菊酯7种农药。 |
| 英文摘要: |
| To evaluate the pollution status and potential risks of pesticides present in Suzhou Ecological Conservation Area' farmland, a reliable Gas chromatography-mass spectrometer(GC-MS)method was developed for simultaneous analysis of 46 pesticides across 63 sampling sites. A non-metric multidimensional scaling method was used to characterize the spatial-temporal distribution of pesticides. In addition, the risk quotient method was used to quantify the risk assessment of ecosystem exposure to different pesticides. The results revealed that four pesticide categories, including organochlorine, organophosphorus, thiadiazine, and pyrethroid, were detectable in various samples, with an average concentration of 31.8, 56.9, 109.8 μg·kg-1, and 71.9 μg·kg-1, respectively. p' p-DDE was the most widely detected, with a detection rate of 91%~100%. The concentration of buprofezin(1 061.1 μg·kg-1)was the highest among all pesticides detected. Based on the ecological risk assessment, potentially high ecological risks were observed in 27% of the sampling sites. These risks were caused by seven types of pesticides:p' p-DDE, buprofezin, isocarbophos, bifenthrin, cypermethrin, fenvalerate, and deltamethrin. |
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