Articles | Volume 23, issue 20
https://doi.org/10.5194/acp-23-13049-2023
https://doi.org/10.5194/acp-23-13049-2023
Research article
 | 
17 Oct 2023
Research article |  | 17 Oct 2023

High enrichment of heavy metals in fine particulate matter through dust aerosol generation

Qianqian Gao, Shengqiang Zhu, Kaili Zhou, Jinghao Zhai, Shaodong Chen, Qihuang Wang, Shurong Wang, Jin Han, Xiaohui Lu, Hong Chen, Liwu Zhang, Lin Wang, Zimeng Wang, Xin Yang, Qi Ying, Hongliang Zhang, Jianmin Chen, and Xiaofei Wang

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Latest update: 16 Nov 2024
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Short summary
Dust is a major source of atmospheric aerosols. Its chemical composition is often assumed to be similar to the parent soil. However, this assumption has not been rigorously verified. Dust aerosols are mainly generated by wind erosion, which may have some chemical selectivity. Mn, Cd and Pb were found to be highly enriched in fine-dust (PM2.5) aerosols. In addition, estimation of heavy metal emissions from dust generation by air quality models may have errors without using proper dust profiles.
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