Occurrence, source apportionment and source-specific risk assessment of antibiotics in a typical tributary of the Yellow River basin

文献类型： 外文期刊

第一作者： Wang, Linfang

作者： Wang, Linfang;Li, Hua;Zhu, Yuen;Wang, Yifan;Liu, Ruimin;Wang, Linfang

作者机构：

关键词： Antibiotics; Surface water; Positive matrix factorization; Source-specific risk; Fenhe river

期刊名称：JOURNAL OF ENVIRONMENTAL MANAGEMENT （ 影响因子：8.91； 五年影响因子：8.549 ）

ISSN： 0301-4797

年卷期： 2022 年 305 卷

页码：

收录情况： SCI

摘要： The spatial distributions, sources, and source-specific risk apportionments of 26 antibiotics (5 categories) in the Fenhe River basin were determined based on sample data. The results showed that antibiotics were widely distributed in the surface water. There were significant differences between the different types of antibiotics, and the highest mean concentration was that of the sulfonamide category (33.74 ng/L), accounting for 36% of the total antibiotic concentration. Spatially, all antibiotics were mainly detected in the middle and downstream areas. The ecological risk assessment results showed that the significant risk rate of antibiotics accounted for 70% and was mainly distributed in the downstream area; however, the risks differed between the 5 categories. Quinolone antibiotics exhibited the highest significant risk rate, reaching 100%. The ecological risk associated with sulfamethoxazole was the highest among all detected antibiotics. The following five main factors influenced the antibiotic concentrations: aquaculture, pharmaceutical wastewater, livestock discharges, domestic sewage, and sewage treatment plants. Among these, pharmaceutical wastewater sources contributed the most (35%) to the total antibiotic concentration, and were distributed throughout the river. Although livestock discharges were not the main reason for the high level of ecological risk, these discharges were highest at certain sites in the midstream region. Different pollution sources posed different levels of ecological risk to the Fenhe River basin, the highest of which was pharmaceutical wastewater with a significant risk rate of 58%.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序