Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/36263
Title: Polluted dust promotes new particle formation and growth
Authors: Nie, W
Ding, AJ
Wang, T 
Kerminen, VM
George, C
Xue, LK
Wang, WX
Zhang, QZ
Petaja, T
Qi, XM
Gao, XM
Wang, XF
Yang, XQ
Fu, CB
Kulmala, M
Issue Date: 2014
Source: Scientific reports, 16 2014, v. 4, no. , p. 1-7
Abstract: Understanding new particle formation and their subsequent growth in the troposphere has a critical impact on our ability to predict atmospheric composition and global climate change. High pre-existing particle loadings have been thought to suppress the formation of new atmospheric aerosol particles due to high condensation and coagulation sinks. Here, based on field measurements at a mountain site in South China, we report, for the first time, in situ observational evidence on new particle formation and growth in remote ambient atmosphere during heavy dust episodes mixed with anthropogenic pollution. Both the formation and growth rates of particles in the diameter range 15-50 nm were enhanced during the dust episodes, indicating the influence of photo-induced, dust surface-mediated reactions and resulting condensable vapor production. This study provides unique in situ observations of heterogeneous photochemical processes inducing new particle formation and growth in the real atmosphere, and suggests an unexpected impact of mineral dust on climate and atmospheric chemistry.
Publisher: Nature Publishing Group
Journal: Scientific reports 
EISSN: 2045-2322
DOI: 10.1038/srep06634
Rights: This work is licensed under a Creative Commons Attribution-NonCommercial ShareAlike 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder in order to reproduce the material. To view a copy of this license, visit http:// creativecommons.org/licenses/by-nc-sa/4.0/
The following publication Nie, W., Ding, A., Wang, T. et al. Polluted dust promotes new particle formation and growth. Sci Rep 4, 6634 (2015) is available at https://dx.doi.org/10.1038/srep06634
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