title: Distribution and Risk Assessment of Antibiotics in a Typical River in North China Plain.
abstract: We evaluated the occurrence and distribution of 12 antibiotics from the sulfonamide (SAs), fluoroquinolone (FQs) and tetracycline (TCs) groups in the Weihe River, North China. The total antibiotic concentrations in surface water, pore water, and sediment samples ranged from 11.1 to 173.1 ng/L, 5.8 to 103.9 ng/L, and 9.5 to 153.4 μg/kg, respectively. The values of the sediment-water partitioning coefficient in the Weihe River varied widely, from not detected to 943, 2213, and 2405 L/kg for SAs, FQs, and TCs, respectively. The values of the partitioning coefficients between sediment and surface water were generally lower than those between sediment and pore water, which indicated ongoing inputs to the water. The risk assessment showed that there were relatively high ecological risks to aquatic algae in this area from sulfamethoxazole, norfloxacin, tetracycline, ofloxacin, and ciprofloxacin.
authors.affiliation: Research Center of Environment Pollution Control and Restoration, Zhengzhou University of Aeronautics, Zhengzhou, 450015, China. leeqz-iue@163.com.|Collaborative Innovation Center for Aviation Economy Development, Zhengzhou University of Aeronautics, Zhengzhou, 450015, China. leeqz-iue@163.com.
authors.forename: Qingzhao
authors.initials: Q
authors.lastname: Li
authors.affiliation: Research Center of Environment Pollution Control and Restoration, Zhengzhou University of Aeronautics, Zhengzhou, 450015, China.
authors.forename: Junxia
authors.initials: J
authors.lastname: Gao
authors.affiliation: College of Foresity, Henan Agricultural University, Zhengzhou, 450002, China.
authors.forename: Qiuling
authors.initials: Q
authors.lastname: Zhang
authors.affiliation: Research Center of Environment Pollution Control and Restoration, Zhengzhou University of Aeronautics, Zhengzhou, 450015, China.
authors.forename: Lizhen
authors.initials: L
authors.lastname: Liang
authors.affiliation: Research Center of Environment Pollution Control and Restoration, Zhengzhou University of Aeronautics, Zhengzhou, 450015, China.
authors.forename: He
authors.initials: H
authors.lastname: Tao
mesh_terms: D000900:Anti-Bacterial Agents / Q000032:analysis; D002681:China; D004784:Environmental Monitoring; D024841:Fluoroquinolones / Q000032:analysis*; D019015:Geologic Sediments / Q000737:chemistry*; D018570:Risk Assessment; D045483:Rivers / Q000737:chemistry*; D013449:Sulfonamides / Q000032:analysis*; D013754:Tetracyclines / Q000032:analysis*; D014867:Water; D014874:Water Pollutants, Chemical / Q000032:analysis
chemical_list: D000900:Anti-Bacterial Agents; D024841:Fluoroquinolones; D013449:Sulfonamides; D013754:Tetracyclines; D014874:Water Pollutants, Chemical; D014867:Water
keywords: Antibiotics; Partitioning coefficients; Risk assessment; Weihe River