Key Laboratory of Industrial Ecology and Environmental Engineering (MOE), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China.
Key Laboratory of Industrial Ecology and Environmental Engineering (MOE), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China.
Sci Total Environ. 2019 Mar 15;656:946-951. doi: 10.1016/j.scitotenv.2018.11.449. Epub 2018 Dec 1.
Mariculture activities and river inputs can lead to pollution of micropollutants (e.g., antibiotics and pesticides) in coastal seawater which is the base of the most dynamic ecosystems due to its hosting some of the highest biodiversity and biological production in the world. It is thus of importance to investigate the occurrence and risks of organic micropollutants in coastal waters. In this study, 13 antibiotics and 15 pesticides were screened in coastal waters around the Liaodong Peninsula, China. Among the targets, thirteen were detected with concentrations up to 64.8 ng L. Simazine, atrazine and triadimenol were found to be the predominant pesticides with detection frequencies of 100%, and sulfamethoxazole was the predominant antibiotic with a detection frequency of 62.5%. The total level of the pollutants in the Bohai Sea was generally higher than that in the Yellow Sea, and a seaward decreasing trend of the pollutants was observed. Terrestrial inputs and mariculture were distinguished as main pollution sources by principal component analysis. Finally, ecological risk quotients were calculated and atrazine and acetochlor showed relatively higher risks to aquatic organisms.
水产养殖活动和河流输入可能导致沿海海水中的微量污染物（如抗生素和农药）污染，而沿海海水是世界上生物多样性和生物生产力最高的最活跃生态系统的基础。因此，调查沿海水域中有机微量污染物的存在和风险非常重要。在这项研究中，筛选了中国辽东半岛沿海海域的 13 种抗生素和 15 种农药。在所研究的目标中，有 13 种被检测到，浓度高达 64.8ng/L。西玛津、莠去津和三唑醇是主要的农药，检测频率为 100%，磺胺甲恶唑是主要的抗生素，检测频率为 62.5%。渤海的污染物总水平普遍高于黄海，且污染物呈向海递减的趋势。主成分分析将陆地输入和水产养殖区分为本区的主要污染源。最后，计算了生态风险商数，发现莠去津和乙草胺对水生生物具有相对较高的风险。
