Adsorption Behaviors of Cadmium Regulated by Microplastics Properties in a Forest Soil.

IF 2.7 4区 环境科学与生态学 Q3 ENVIRONMENTAL SCIENCES
Akaninyene Joseph, Rongxin Xie, Zhiwang Feng, Hanzhou Wu, Jizhou Li, Xuyin Yuan, Ningyuan Zhu, Yimin Wang
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Abstract

Co-contamination of microplastics (MPs) and cadmium (Cd) has attracted attentions in forest soils due to their complex behaviors and ecological risks. This study investigates the interactions between MPs and Cd2+, focusing on effects of different types (polyethylene: PE, polybutylene succinate: PBS, poly-11-bromoundecyl acrylate: PBA), sizes (75-150 and 150-300 μm) and concentrations (1% and 10%) of MPs on soil properties. Results showed that MPs significantly influence contents of soil dissolved organic carbon and available nitrogen, while increased MPs concentrations reduced the dissolved organic matter (DOM) availability and decomposition. Adsorption and desorption of Cd2+ were higher in biodegradable MPs (PBS and PBA), with the Freundlich model providing a better fit for Cd2+ adsorption. Pearson correlation and redundancy analysis identified soil DOM, number of humic-like substances, and microbial by-products as key factors influencing Cd2+ behavior. These findings contribute to understanding risks of co-contamination by MPs and heavy metals in forest soils.

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来源期刊
CiteScore
5.60
自引率
3.70%
发文量
230
审稿时长
1.7 months
期刊介绍: The Bulletin of Environmental Contamination and Toxicology(BECT) is a peer-reviewed journal that offers rapid review and publication. Accepted submissions will be presented as clear, concise reports of current research for a readership concerned with environmental contamination and toxicology. Scientific quality and clarity are paramount.
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