Abstract：Five antibiotics (including four sulfonamides and trimethoprim) in the Qinzhou Bay, South China, were analyzed using highperformance liquid chromatography-electrospray ionization tandem mass spectrometry. Focus was on the levels and distribution of antibiotics pollution in the waters. Sulfamethoxazole, with concentrations up to 12ng/L, was the most frequently detected compound, following by TMP. In general, the contamination level was relatively low when compared with other areas. The average antibiotic concentrations from different sections of the bay decreased in the following order: Maowei Sea (8.4ng/L) > outer Qinzhou Bay (1.9ng/L) > Sanning Bay (1.4ng/L). The concentrations of antibiotics in the aquaculture area were higher those in other areas, indicating that aquaculture activities could contribute to the antibiotic residues in the environment. An ecological risk assessment revealed that sulfamethoxazole may present possible risk to the environment. Therefore, the long-term ecological effects caused by the continuous discharge of antibiotics in the Qinzhou Bay can not be ignored.
薛保铭, 杨惟薇, 王英辉, 黄闻宇, 李平阳, 张瑞杰, 黄魁. 钦州湾水体中磺胺类抗生素污染特征与生态风险[J]. 中国环境科学, 2013, 33(9): 1664-1669.
XUE Bao-Ming, YANG Wei-Wei, WANG Ying-Hui, HUANG Wen-Yu, LI Ping-Yang, ZHANG Rui-Jie, HUANG Kui. Occurrence, distribution and ecological risks of sulfonamides in the Qinzhou Bay, South China. CHINA ENVIRONMENTAL SCIENCECE, 2013, 33(9): 1664-1669.
