期刊
MOLECULES
卷 19, 期 5, 页码 6877-6890出版社
MDPI
DOI: 10.3390/molecules19056877
关键词
ionic liquids; luciferase; molecular level; joint toxicity; concentration addition; independent action; two-stage prediction; NOEC; mixture risk assessment
资金
- Key Science and Technology Projects of Hainan Province [ZDXM20130043]
- National Natural Science Foundation of China [21177097]
The predicted toxicity of mixtures of imidazolium and pyridinium ionic liquids (ILs) in the ratios of their EC50, EC10, and NOEC (no observed effect concentration) were compared to the observed toxicity of these mixtures on luciferase. The toxicities of EC50 ratio mixture can be effectively predicted by two-stage prediction (TSP) method, but were overestimated by the concentration addition (CA) model and underestimated by the independent action (IA) model. The toxicities of EC10 ratio mixtures can be basically predicted by TSP and CA, but were underestimated by IA. The toxicities of NOEC ratio mixtures can be predicted by TSP and CA in a certain concentration range, but were underestimated by IA. Our results support the use of TSP as a default approach for predicting the combined effect of different types of ILs at the molecular level. In addition, mixtures of ILs mixed at NOEC and EC10 could cause significant effects of 64.1% and 97.7%, respectively. Therefore, we should pay high attention to the combined effects in mixture risk assessment.
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