The distribution of antibiotics in water of a river basin in South China

3rd International Conference on Water Resource and Environment

地球科学;生态环境科学

Meng, T.^1 ; Cheng, W.^1 ; Wang, M.^1 ; Wan, T.^1 ; Cheng, M.^1 ; Zhang, C.C.^2 ; Jia, Z.Y.^3

State Key Laboratory Base of Eco-Hydraulic Engineering in Arid Area, Xi'An University of Technology, Xi'an

710048, China^1

Xi'An Jiaotong University, Xi'an

710049, China^2

Xi'An Polytechnic University, Xi'an

710048, China^3

关键词: Detection rates;    Drinking water samples;    Maximum concentrations;    Membrane treatments;    Research topics;    Sampling points;    Sulfamonomethoxine;    Water environments;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/82/1/012078/pdf
DOI  :  10.1088/1755-1315/82/1/012078

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

In water environment field, one of the most attractive research topics is the determination of contamination characteristics of antibiotics in water. In order to investigate the distribution of antibiotics in surface water and drinking water of a certain river basin in southern China, we determined the types and concentrations of antibiotics that contaminated the river by performing HPLC-ESI-MS/MS method. Thus, we detected 17 antibiotics in four surface water samples (B1, B2, B3, and B4). In sampling points B3 and B4, we detected 16 antibiotics separately. The detection rates of norfloxacin, ofloxacin, and erythromycin-H2O were 100%, and the antibiotic erythromycin-H2O had the maximum concentration. In six drinking water samples (A1, A2, A3, A4, A5, and A6), we detected 13 antibiotics. In A5 water samples, we detected all the 13 antibiotics. The detection rate of ofloxacin and erythromycin-H2O was 100%, and erythromycin-H2O was the antibiotic with the highest concentration. We also found that from the upstream to the downstream of the river basin, the types of antibiotics in river increased gradually. In the upstream water samples (B1), we detected three antibiotics. Erythromycin-H2O was the antibiotic with the highest concentration of 6.61 ng/L, and sulfapyridine had the lowest concentration of 2.82 ng/L. In the downstream water samples (B4), we detected 16 antibiotics. Erythromycin-H2O was the antibiotic with the highest concentration of 277.58 ng/L, and the Sulfamonomethoxine was the antibiotic with the second-highest concentration of 242.1 ng/L. In addition, different membrane treatment processes could remove different amounts of antibiotics from the water samples. The study is an important reference for providing environmental protection to river water basin.