Wang Wenqiang, Zhang Jing, Wu Jingya, Yu Ran, Zhang Yimin, Sun Liwei, Gao Yuexiang
School of Energy & Environment, Southeast University, Nanjing 210096, China.
Taihu Lake Water Environment Engineering Research Center (Wuxi), Southeast University, Wuxi 214000, China.
Int J Environ Res Public Health. 2021 Oct 26;18(21):11232. doi: 10.3390/ijerph182111232.
Pesticide adjuvants (PAs) are important components of pesticide. Nonetheless, limited information is available regarding their toxic effects on biota in terrestrial ecosystem. In the present study, the mortality, growth inhibition ratio, and avoidance behavior of were examined to investigate the ecotoxicological effects of toluene, xylene, and trichloroethylene and further their mixture. The 24 h median lethal concentration (24 h-LC) of the three PAs were 300.23, 1190.45, and 5332.36 mg/kg, and the 48 h-LC values were 221.62, 962.89, and 4522.41 mg/kg, respectively. The mixture exhibited significant synergistic effect on the . There was significant growth inhibition on by the tested PAs. The avoidance threshold values of for the tested PAs were 1100 mg/kg, 250 mg/kg, 5000 mg/kg, and 25% of the mixture, respectively. The results evaluated the toxic effects of the three PAs and their mixture on , provided a basis for ecotoxicological risk assessment of PAs in the soil ecosystem.
农药助剂（PAs）是农药的重要组成部分。然而，关于它们对陆地生态系统生物群的毒性影响的信息有限。在本研究中，检测了[具体生物]的死亡率、生长抑制率和回避行为，以研究甲苯、二甲苯和三氯乙烯及其混合物的生态毒理学效应。这三种农药助剂的24小时半数致死浓度（24 h-LC）分别为300.23、1190.45和5332.36毫克/千克，48小时LC值分别为221.62、962.89和4522.41毫克/千克。该混合物对[具体生物]表现出显著的协同效应。受试农药助剂对[具体生物]有显著的生长抑制作用。[具体生物]对受试农药助剂的回避阈值分别为1100毫克/千克、250毫克/千克、5000毫克/千克和混合物的25%。研究结果评估了这三种农药助剂及其混合物对[具体生物]的毒性影响，为土壤生态系统中农药助剂的生态毒理学风险评估提供了依据。
