Refining the aquatic microplastic risk assessment framework through dynamic flux simulation and ecological thresholds
文献类型：期刊论文
| 作者 | Li, Hengchen1,2; Xue, Yuxuan1,2; Lu, Hongwei2; Feng, Sansan2; Zhang, Xiaohan1,2; Zhu, Ke1,2; Cheng, Kaiwen1,2 |
| 刊名 | JOURNAL OF HAZARDOUS MATERIALS
 |
| 出版日期 | 2026-04-01 |
| 卷号 | 507页码:141697 |
| 关键词 | Microplastic flux Ecological risk assessment Species sensitivity distribution Jinsha River Qinghai-Tibet Plateau |
| ISSN号 | 0304-3894 |
| DOI | 10.1016/j.jhazmat.2026.141697 |
| 产权排序 | 1 |
| 文献子类 | Article |
| 英文摘要 | To address the limitations of existing models in simulating dynamics across arbitrary river cross-sections and the tendency of traditional assessments to neglect the spatial heterogeneity of receptor species, this study developed a microplastic flux simulation (MFS) model and a species sensitivity distribution-based ecological risk assessment (SSD-ERA) method. By coupling hydrological processes with microplastic emission and transport mechanisms, the MFS model enables dynamic simulation with strong predictive performance. Concurrently, the SSD-ERA method overcomes uniform-threshold limitations by dynamically adjusting risk thresholds based on local aquatic species richness. Application to the Jinsha River on the Qinghai-Tibet Plateau demonstrated strong agreement between simulated and observed values. Results indicated that surface-layer microplastic flux ranged from 0.66 to 276.82 tons/yr (95% CI: 0.54-334.58 tons/yr), placing 13.04-43.47% of the watershed at mediumto-high risk. This study highlights the critical role of spatial threshold adjustment, providing a refined methodological framework for future aquatic microplastic flux and risk modeling. |
| URL标识 | 查看原文 |
| WOS研究方向 | Engineering ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:001714476000001 |
| 出版者 | ELSEVIER |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/221281]  |
| 专题 | 陆地水循环及地表过程院重点实验室_外文论文 |
| 通讯作者 | Lu, Hongwei |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Li, Hengchen,Xue, Yuxuan,Lu, Hongwei,et al. Refining the aquatic microplastic risk assessment framework through dynamic flux simulation and ecological thresholds[J]. JOURNAL OF HAZARDOUS MATERIALS,2026,507:141697. |
| APA | Li, Hengchen.,Xue, Yuxuan.,Lu, Hongwei.,Feng, Sansan.,Zhang, Xiaohan.,...&Cheng, Kaiwen.(2026).Refining the aquatic microplastic risk assessment framework through dynamic flux simulation and ecological thresholds.JOURNAL OF HAZARDOUS MATERIALS,507,141697. |
| MLA | Li, Hengchen,et al."Refining the aquatic microplastic risk assessment framework through dynamic flux simulation and ecological thresholds".JOURNAL OF HAZARDOUS MATERIALS 507(2026):141697. |
入库方式： OAI收割
来源：地理科学与资源研究所
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