南阳市某畜禽养殖场地下水污染因子识别及风险评价

doi:10.14088/j.cnki.issn0439-8114.2023.03.025

摘要/Abstract

摘要： 以南阳市内乡县某畜禽养殖场为研究对象,在其周边地区共采集地下水样品11个,测试指标包括常规指标35项及抗生素指标24项,运用数理统计、Piper图、相关性分析、污染指数法、健康风险评价模型等方法,系统开展了水化学分析、地下水质量评价、污染评价和健康风险评价。结果表明,养殖场周边地下水特征污染因子为总硬度、硝酸盐、铅、铁和锰等,浓度相对较高的抗生素组分有交沙霉素、林可霉素、诺氟沙星、达氟沙星、氟甲喹等,其中林可霉素风险性最高。健康风险评价表明,非致癌风险主要由硝酸盐氮和铅以口摄入造成,非致癌健康风险指数最大值分别达0.908和0.875,已经接近风险阈值。最后结合研究区地质条件和人为因素剖析了污染成因。

关键词: 畜禽养殖场, 地下水, 污染因子, 识别与风险评价, 抗生素, 南阳市

Abstract: A livestock and poultry farm in Neixiang County, Nanyang City was chosen as the research object and a total of 11 groundwater samples were collected in its surrounding areas. The test indicators included 35 conventional indicators and 24 antibiotic indicators. Water chemical analysis, groundwater quality assessment, pollution assessment and health risk assessment were carried out by using mathematical statistics, Piper diagram, correlation analysis, pollution index method and health risk assessment model. The results showed that the characteristic pollution factors of groundwater around the farm included total hardness, nitrate, lead, iron and manganese. The antibiotic components with relatively high concentrations were josamycin, lincomycin, norfloxacin, danofloxacin and flumequine, among which lincomycin had the highest pollution risk. The health risk assessment showed that the non-carcinogenic risk was mainly caused by oral intake of nitrate nitrogen and lead, and the maximum non-carcinogenic health risk index reached 0.908 and 0.875, respectively, which was close to the risk threshold. Finally, the causes of pollution were analyzed based on the geological conditions and human factors of the study area.

Key words: livestock and poultry farm, groundwater, pollution factor, identification and risk assessment, antibiotics, Nanyang City

中图分类号:

X523

石国伟, 李亚松, 刘雅慈, 曹胜伟, 敦宇. 南阳市某畜禽养殖场地下水污染因子识别及风险评价[J]. 湖北农业科学, 2023, 62(3): 157-164.

SHI Guo-wei, LI Ya-song, LIU Ya-ci, CAO Sheng-wei, DUN Yu. Pollution factors identification and risk assessment of groundwater around a livestock and poultry farm in Nanyang City[J]. HUBEI AGRICULTURAL SCIENCES, 2023, 62(3): 157-164.

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