胶州湾海岸带表层沉积物中典型喹诺酮类抗生素污染特征研究

发布时间：2019-08-24 09:09

【摘要】：本研究对胶州湾海岸带表层沉积物中吡哌酸、氧氟沙星、环丙沙星、恩诺沙星、洛美沙星、沙拉沙星、恶喹酸和氟甲喹8种喹诺酮类抗生素的含量以及分布特征进行分析探讨。结果表明,研究区域内36个站点均检测到喹诺酮类抗生素,含量范围在0.48×10~(-9)~47.54×10~(-9),平均含量为8.45×10~(-9),含量最高点出现在人口、医院密集的市区附近海域。研究区中恶喹酸检出率最高,可达94.44%,其平均含量为0.89×10~(-9),这与恶喹酸在水产养殖中广泛使用有关。洋河河口站点平均含量(8.91×10~(-9))高于大沽河口(3.74×10~(-9)),且其个别站点沉积物的喹诺酮抗生素总含量高达20.32×10~(-9);红岛码头区沉积物中喹诺酮抗生素总含量均达到6.00×10~(-9)以上,检出四种喹诺酮类抗生素;湾口养殖基地周边沉积物中检测出喹诺酮抗生素种类较多,总含量为11.12×10~(-9),可见胶州湾海岸带已明显受到喹诺酮类抗生素污染。然而与其他海岸带及我国典型河流沉积物中喹诺酮类抗生素污染相比,胶州湾表层沉积物中喹诺酮抗生素含量较低,处于低污染水平,但个别站位污染种类较多、含量偏高,应引起相关部门重视,合理规划海洋功能区,加强环湾环境保护。
[Abstract]:In this study, the contents and distribution characteristics of palmetasone, ofloxacin, ciprofloxacin, enrofloxacin, lomefloxacin, salafloxacin, cciprofloxacin and fluoxacin in the surface sediments of the coastal zone of Jiaozhou Bay were analyzed and discussed. The results showed that the content of the antibiotics in 36 sites in the study area was in the range of 0.48-10-(-9)-47.54-10-(-9), the average content was 8.45-10-(-9), and the highest point of the content appeared in the near-urban areas of the population and the hospital. The highest detectable rate in the study area can reach 94.44%, and the average content is 0.89-10 ~ (-9), which is related to the wide use of the discorbic acid in the aquiculture. The average content (8.91-10 ~ (-9)) of the Yanghe River estuary is higher than that of the Dagu estuary (3.74-10 ~ (-9)), and the total content of the unnoone antibiotics in the sediment of the individual site is as high as 2032-10 ~ (-9), and the total content of the pronoone antibiotics in the sediment of the red-island code-head area reaches above 6.00-10-(-9). The results showed that there were more antibiotics in the periphery of the bay culture base, with the total content of 11.12-10 ~ (-9), and the coastal zone of the Jiaozhou Bay was obviously contaminated with the Onoone antibiotics. However, compared with the other coastal zone and in the typical river sediments of China, the content of the noone antibiotics in the surface sediments of the Jiaozhou Bay is low and is at the low pollution level. However, the pollution types of the individual stations are high and the content is high, which should give attention to the relevant departments. The marine functional area shall be planned reasonably, and the environmental protection of the ring bay shall be strengthened.
【作者单位】：青岛大学环境科学与工程学院;中国地质调查局滨海湿地生物地质重点实验室;青岛海洋地质研究所;
【基金】：国家自然科学基金资助项目(41306064,31400371) 国土资源部公益性行业基金项目(201411072)
【分类号】：X55

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