抗生素
地下水
分水岭
环境科学
农业
牲畜
地表径流
生物群
抗生素耐药性
污水
地表水
水资源管理
生态学
环境工程
生物
微生物学
工程类
机器学习
岩土工程
计算机科学
作者
Hyun-Jeoung Lee,Deok‐Woo Kim,Chansik Kim,Hong-Duck Ryu,Eu Gene Chung,Kyung‐Hyun Kim
标识
DOI:10.3390/ijerph182010797
摘要
Antibiotics used for the treatment of humans and livestock are released into the environment, whereby they pose a grave threat to biota (including humans) as they can cause the emergence of various strains of resistant bacteria. An improved understanding of antibiotics in the environment is thus vital for appropriate management and mitigation. Herein, surface water and groundwater samples containing antibiotics were analyzed in an urban–rural complex watershed (Cheongmi Stream) comprising intensive livestock farms by collecting samples across different time points and locations. The spatiotemporal trends of the residual antibiotics were analyzed, and ecological and antibiotic resistance-based risk assessments were performed considering their concentrations. The results showed that the concentrations and detection frequencies of the residual antibiotics in the surface water were affected by various factors such as agricultural activities and point sources, and were higher than those found in groundwater; however, frequent detection of antibiotics in groundwater showed that residual antibiotics were influenced by factors such as usage pattern and sewage runoff. Furthermore, few antibiotics posed ecological risks. The risk assessment methods adopted in this study can be applied elsewhere, and the results can be considered in the environmental management of residual antibiotics in the Cheongmi Stream watershed.
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