兰州大学机构库
Significant roles of aged dust aerosols on rapid nitrate formation under dry conditions in a semi-arid city
Li, Jiayun1; Zhang, Naiyue1; Tian, Pengfei1; Zhang, Min1; Shi, Jinsen1,2; Chang, Yi3; Zhang, Lei1,2; Liu, Zirui4; Wang, Yuesi4
2023-11-01
Online publication date2023-08
Source PublicationENVIRONMENTAL POLLUTION   Impact Factor & Quartile
ISSN0269-7491 ; 1873-6424
EISSN1873-6424
Volume336
page numbers8
AbstractMineral dust can accelerate secondary aerosol formation under humid conditions. However, it is unclear whether it can promote secondary aerosol formation under dry conditions. To investigate this issue, two years of comprehensive observations was conducted at a semi-arid site, near the dust source regions. Three types of episodes were selected: dust, anthropogenic-dominated, and mixed (mixed with dust and anthropogenic aerosols). Compared to anthropogenic-dominated episodes under humid conditions, rapid nitrate formation was still observed in mixed episodes under dry conditions, suggesting that active metallic oxides in dust, such as titanium dioxide, could promote photochemical reactions of nitrogen dioxide. The detailed evolutionary processes are further illustrated by a typical dust-to-mixed episode. After the arrival of the dust, titanium sharply increased tenfold and rapid nitrate formation was observed, together with a rapid increase in the two most important photochemical pollutants, ozone and peroxyacetyl nitrate. The increased secondary organic carbon further illustrated that the suspended dust particles accelerated the atmospheric oxidative capacity, thereby enhancing secondary aerosol formation and eventually leading to haze pollution. These results differ from those in humid regions and therefore expand the scientific understanding of the impact of dust aerosols on haze pollution under dry conditions.
KeywordDust Nitrate Secondary formation Photochemistry Semi-arid city
PublisherELSEVIER SCI LTD
DOI10.1016/j.envpol.2023.122395
Indexed BySCIE
Language英语
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:001077522100001
Original Document TypeArticle
PMID 37595735
Citation statistics
Document Type期刊论文
Identifierhttps://ir.lzu.edu.cn/handle/262010/569062
Collection兰州大学
Corresponding AuthorLi, Jiayun
Affiliation
1.Lanzhou Univ, Coll Atmospher Sci, Key Lab Semiarid Climate Change, Minist Educ, Lanzhou 730000, Peoples R China;
2.Lanzhou Univ, Collaborat Innovat Ctr Western Ecol Safety, Lanzhou 730000, Peoples R China;
3.Gansu Prov Environm Monitoring Ctr, Lanzhou 730020, Peoples R China;
4.Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Atmospher Boundary Layer Phys & Atmo, Beijing, 100029, Peoples R China
Recommended Citation
GB/T 7714
Li, Jiayun,Zhang, Naiyue,Tian, Pengfei,et al. Significant roles of aged dust aerosols on rapid nitrate formation under dry conditions in a semi-arid city[J]. ENVIRONMENTAL POLLUTION,2023,336.
APA Li, Jiayun.,Zhang, Naiyue.,Tian, Pengfei.,Zhang, Min.,Shi, Jinsen.,...&Wang, Yuesi.(2023).Significant roles of aged dust aerosols on rapid nitrate formation under dry conditions in a semi-arid city.ENVIRONMENTAL POLLUTION,336.
MLA Li, Jiayun,et al."Significant roles of aged dust aerosols on rapid nitrate formation under dry conditions in a semi-arid city".ENVIRONMENTAL POLLUTION 336(2023).
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Altmetrics Score
Google Scholar
Similar articles in Google Scholar
[Li, Jiayun]'s Articles
[Zhang, Naiyue]'s Articles
[Tian, Pengfei]'s Articles
Baidu academic
Similar articles in Baidu academic
[Li, Jiayun]'s Articles
[Zhang, Naiyue]'s Articles
[Tian, Pengfei]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Li, Jiayun]'s Articles
[Zhang, Naiyue]'s Articles
[Tian, Pengfei]'s Articles
Terms of Use
No data!
Social Bookmark/Share
No comment.
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.