7Yang J F, Ying G G, Zhao J L, et al. Spatial and seasonal distribu- tion of selected antibiotics in surface waters of the Pearl Rivers, China. Environ Sci Health, 2011, 46: 272-280.
8Jia A, Hu J Y, Wu X Q, et al. Occurrence and source apportionment of sulfonamides and their metabolites in Liaodong Bay and the adjacent Liao River Basin, North China. Environ Toxicol Chem, 2011, 30: 1252-1260.
4Daughton C G, Ternes T A. Pharmaceutical and personal care products in the environment: Agents of subtle changes [J]. Environ Health Perspect, 1999, 107: 907- 938.
5Boxall A B A, Kolpin D W, Halling-oensen B, et al. Are veterinary medicines causing environmental risks? [J]. Environ Sci Technol, 2003, 37: 286A - 294A.
6Ternes T A, Kreckel P, Mueller J. Behaviour and occurrence of estrogens in municipal sewage treatment plants Ⅱ: Aerobic batch experiments with activated sludge [J]. Sci Total Environ, 1999, 25: 91-99.
7Ternes T A, Stuber J, Herrmann N, et al. Ozonation: A tool for removal of pharmaceuticals, contrast media and musk fragrances from wastewater [J]. Water Res, 2003, 37: 1976 - 1982.
8Golet E M, Strehler A, Aider A C, et al. Determination of fluoroquinolone antibacterial agents in sewage sludge and sludge-treated soil using accelerated solvent extraction followed by solid-phase extraction [J]. Anal Chem, 2002, 74:5455 - 5462.
9Kolpin D W, Furlong E T, Meyer M T, et al. Pharmaceuticals, hormones, and other organic wastewater contaminants in US streams, 1999 - 2000: A national reconnaissance[J]. Environ Sci Technol, 2002, 36: 1202- 1211.
10Heberer T. Tracking persistent pharmaceutical residues from municipal sewage to drinking water [J].J Hydrol, 2002, 266:175 - 189.