Articles | Volume 25, issue 14
https://doi.org/10.5194/acp-25-7699-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-25-7699-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Asian dust transport of proteinaceous matter from the Gobi Desert to northern China
Ren-Guo Zhu
School of Water Resources and Environmental Engineering, East China University of Technology, Nanchang 330013, China
Jiangxi Provincial Key Laboratory of Genesis and Remediation of Groundwater Pollution, East China University of Technology, Nanchang 330013, China
Hua-Yun Xiao
CORRESPONDING AUTHOR
School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China
Meiju Yin
School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China
Hao Xiao
School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China
Zhongkui Zhou
School of Water Resources and Environmental Engineering, East China University of Technology, Nanchang 330013, China
Yuanyuan Pan
School of Water Resources and Environmental Engineering, East China University of Technology, Nanchang 330013, China
Guo Wei
School of Water Resources and Environmental Engineering, East China University of Technology, Nanchang 330013, China
Cheng Liu
School of Water Resources and Environmental Engineering, East China University of Technology, Nanchang 330013, China
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Short summary
The concentrations and δ15N isotopic values of CAAs (combined amino acids) in surface soil and plants from the Gobi Desert, as well as in PM2.5 samples from four cities in Northern China, were measured. CAAs transported by Gobi dust were rich in alanine, glycine and glutamic acid. Glycine and leucine in Gobi Desert sources exhibited δ15N depletion by more than 6 ‰ compared to their values in urban PM2.5. Substantial protein-N deposition can be transported by the Gobi Desert to northern China over brief periods.
The concentrations and δ15N isotopic values of CAAs (combined amino acids) in surface soil and...
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