Direct Evidence from Multiscale Measurements Explains the Nonmonotonic Deposition of Microplastics in the Presence of Dissolved Organic Matter: Overlooked Contribution of Molecular Self-Assembly

μm/min. Critical DOM concentrations serving as the "inflection point" of deposition fluxes for both pristine MPs and aged MPs were identified. Overall, this study establishes a novel framework for investigating the deposition mechanisms of MPs and other particulate pollutants, highlighting the critical role of DOM self-assembly in regulating the fate of contaminants in DOM-rich environments. The observed molecular fractionation of DOM, dictated by both concentration and composition, determines its interactions with minerals, thereby regulating the subsequent stabilization and biogeochemical cycling of carbon within the earth's critical zone.

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Publication Details

Journal
Environmental Science & Technology
Published
2026-03-31
DOI
https://doi.org/10.1021/acs.est.5c12968
Primary Topic
Microplastics and Plastic Pollution
Type
article
Field-Weighted Citation Impact
0.00

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article

Direct Evidence from Multiscale Measurements Explains the Nonmonotonic Deposition of Microplastics in the Presence of Dissolved Organic Matter: Overlooked Contribution of Molecular Self-Assembly

Yijun Mo, Zihan Xiao, Yu Luo, Yi Fu et al.
Environmental Science & Technology
Microplastics and Plastic Pollution
article

Direct Evidence from Multiscale Measurements Explains the Nonmonotonic Deposition of Microplastics in the Presence of Dissolved Organic Matter: Overlooked Contribution of Molecular Self-Assembly

Yijun Mo, Zihan Xiao, Yu Luo, Yi Fu, X F Yang, Hongbo Zeng, Shishu Zhu, Peng Wang, Meng Zhang, Rongliang Qiu
article en

Abstract

μm/min. Critical DOM concentrations serving as the "inflection point" of deposition fluxes for both pristine MPs and aged MPs were identified. Overall, this study establishes a novel framework for investigating the deposition mechanisms of MPs and other particulate pollutants, highlighting the critical role of DOM self-assembly in regulating the fate of contaminants in DOM-rich environments. The observed molecular fractionation of DOM, dictated by both concentration and composition, determines its interactions with minerals, thereby regulating the subsequent stabilization and biogeochemical cycling of carbon within the earth's critical zone.

Environmental Science & TechnologyVol. 60(17)
South China Agricultural University (CN), University of Alberta (CA), Sun Yat-sen University (CN), Beijing Normal University (CN), Institute of Ecology and Geography (MD), Key Laboratory of Guangdong Province (CN), Ministry of Education (IR), NOAA Center for Satellite Applications and Research (US), Human Media (US), Guangdong Provincial Academy of Environmental Science (CN), Advanced Applications (United States) (US), State Key Laboratory of Earth Surface Processes and Resource Ecology, South China University of Technology (CN)
National Natural Science Foundation of China, National Key Research and Development Program of China, Basic and Applied Basic Research Foundation of Guangdong Province
Life in Land
Openalex Percentile: Top 38%
Microplastics and Plastic Pollution
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