结合多表面和生物毒性模型,预测土壤中的生物可用性和积累
Simin Li1, Jiawen Zhou2, Tingting Mu3
1Research Center of Solid Waste Pollution and Prevention, Nanjing Institute of Environmental Science, Ministry of Ecology and Environment, Nanjing 210042, China; Key Laboratory Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 211135, China.
Ecotoxicology and environmental safety
|April 12, 2025
概括
基于机制的多表面模型 (MSM) 准确地预测了 (Cd) 在土壤动物 (如Folsomia candida) 中的生物利用率. MSMs-rBLM模型对评估Cd的生态风险和生物积累非常有希望.
科学领域:
- 环境化学环境化学
- 生态毒理学 生态毒理学
- 土壤科学 土壤科学
背景情况:
- 在土壤动物中金属的生物可用性对于生态毒性测试至关重要.
- 土壤中的 (Cd) 污染给环境带来了重大关注.
- 了解Cd从土壤接口转移到生物体是必不可少的.
研究的目的:
- 为了确定Cd在自然污染的土壤中对folsomia candida的生物利用性.
- 评估化学提取方法和基于机制的模型来预测Cd的生物可用性.
- 开发和验证用于Cd生物积累的机械预测的组合模型.
主要方法:
- 使用的化学提取方法 (0.01 M CaCl2,0.43 M HNO3,土壤溶液,DGT,总土壤Cd).
- 采用了基于机制的多面模型 (MSM) 和三个组合模型 (MSMs-FIAM,MSMs-rBLM,MSMs-GCSM).
- 在不同的土壤条件下,在Folsomia candida中评估Cd生物积累.
主要成果:
- 与传统的化学提取方法相比,MSM提供了更好的Cd生物利用率预测 (R2 = 0.667).
- 使用MSM计算的溶解Cd有效地表明了F. candida在不同土壤特性中的生物可用性.
- 结合的MSMs-rBLM模型显示了Cd生物积累的优异预测 (R2 = 0.793,RMSE = 0.172,MAPE = 15.4%).
结论:
- MSM是预测Cd在土壤无脊椎动物中的生物可用性的有效工具.
- 该MSMs-rBLM模型准确地预测了Cd生物积累,并将土壤-液体接口与生物体表面联系起来.
- MSMs-rBLM提供了一种新的方法来评估土壤生态系统中的Cd生态风险.
相关概念视频
Multicompartment Models: Overview
Multicompartment models are mathematical constructs that depict how drugs are distributed and eliminated within the body. They segment the body into several compartments, symbolizing various physiological or anatomical areas connected through drug transfer processes such as absorption, metabolism, distribution, and elimination.
These models offer a more comprehensive representation of drug behavior in the body than one-compartment models. They accommodate the complexity of drug distribution,...
These models offer a more comprehensive representation of drug behavior in the body than one-compartment models. They accommodate the complexity of drug distribution,...
Microbial Bioremediation of Uranium
Microorganisms play a critical role in the transformation and immobilization of uranium in contaminated environments through four main pathways: bioreduction, biosorption, bioaccumulation, and biomineralization. These mechanisms reduce uranium’s toxicity and prevent its migration through groundwater systems, offering sustainable approaches for in situ bioremediation.Bioreduction of UraniumBioreduction is driven by anaerobic bacteria such as certain strains of Geobacter and Shewanella, which use...


