Du Jing, Hu Chao-Kui, Xie Huai-Jun, Tian Jia-Shen, Li Ai, Xie Qing, Wu Jin-Hao, Song Lun
Key Laboratory of Marine Biological Resources and Ecology, Liaoning Ocean and Fisheries Science Research Institute, Dalian 116023, China.
School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China.
Huan Jing Ke Xue. 2021 Apr 8;42(4):1772-1780. doi: 10.13227/j.hjkx.202008125.
Fourteen current-use pesticides (CUPs) in the surface seawaters of the typical Liaoning sea areas were analyzed using HPLC-MS/MS. The concentrations, distribution, and ecological risks were studied, as well as their source appointments using principal component analysis (PCA). The results revealed that seven types of CUPs were detected in the surface seawaters of the typical Liaoning sea areas. The total concentrations of these CUPs ranged from 16.7 ng·L to 176.1 ng·L. The samples with high concentrations were collected mostly from the estuary, and the concentrations of CUPs in the western Liaodong Bay were generally higher than those in the northeastern Yellow Sea. Atrazine and triadimenol were the predominant CUPs, and their contribution rates accounted for 56.0% and 34.5%, respectively. The PCA results indicated that six types of CUPs might be caused by the runoff from farmlands and the wastewater discharge from the chemical pesticide factory, and fruit planting could be a substantial contributor to the single component acetochlor. Atrazine and acetochlor posed medium-high ecological risks to the microalgae, while all the seven types of CUPs showed relatively lower risks to invertebrates and fish.
采用高效液相色谱-串联质谱法（HPLC-MS/MS）对辽宁典型海域表层海水中的14种现行使用农药（CUPs）进行了分析。研究了其浓度、分布、生态风险，并运用主成分分析（PCA）对其来源进行了判定。结果显示，在辽宁典型海域表层海水中检测出7种CUPs。这些CUPs的总浓度范围为16.7 ng·L至176.1 ng·L。高浓度样品大多采集自河口，辽东湾西部CUPs的浓度普遍高于黄海东北部。阿特拉津和三唑醇是主要的CUPs，其贡献率分别为56.0%和34.5%。主成分分析结果表明，6种CUPs可能来源于农田径流和化学农药厂废水排放，水果种植可能是单一组分乙草胺的主要贡献源。阿特拉津和乙草胺对微藻构成中高生态风险，而所有7种CUPs对无脊椎动物和鱼类的风险相对较低。
