干旱区生态环境知识资源中心(Arid): Temporal Variation of Airborne Dust Concentrations in the Mogao Grottoes, Dunhuang, China

Arid

DOI	10.3389/fenvs.2022.878466
	Temporal Variation of Airborne Dust Concentrations in the Mogao Grottoes, Dunhuang, China
	Zhang, Guobin; Tan, Lihai; Zhang, Weimin; Zhan, Hongtao; Qiu, Fei
通讯作者	Tan, LH
来源期刊	FRONTIERS IN ENVIRONMENTAL SCIENCE
EISSN	2296-665X
出版年	2022
卷号	10
英文摘要	Dust storms bring a large quantity of dust aerosols from arid and semi-arid regions of the Earth. However, real-time dust concentration data for dust storms in arid regions, important for wind erosion studies, are still limited. Here, temporal variation of airborne dust concentrations in the Mogao Grottoes, Northwest China, during the monitoring period from February to October 2012 and typical dust storms under different wind directions were analyzed. Results reveal that the monthly mean total suspended particle (TSP), particulate matter less than 10 mu m (PM10), and particulate matter less than 2.5 mu m (PM2.5) concentrations gradually decreased from February to October. The daily mean dust concentrations fluctuated with the day, with extreme values occurring mainly on February, March, and April. The daily mean PM10/TSP ratio ranged from 0.67 to 0.98 (mean of 0.82), and the PM2.5/PM10 ratio ranged from 0.31 to 0.73 (mean of 0.55), indicating PM10 dominated in TSP. In typical dust storms, the maximum real-time concentrations can reach 16, 000-21, 000 mu g TSP m(-3), similar to 11, 000 mu g PM10 m(-3), and 3000-3500 mu g PM2.5 m(-3), and extreme real-time dust concentrations of 50358.03 mu g TSP m(-3), 33100.86 mu g PM10 m(-3), and 7502.59 mu g PM2.5 m(-3) were recorded. Coincidence of the dry climate and windy season and sufficient dust sources in the surrounding environment contributed to the high dust concentrations in the Mogao Grottoes. To achieve the goal of minimizing the damage of falling dust to the murals and statues, establishing a dust storm early warning system and improving the existing sand control system are recommended.
英文关键词	dust storms particulate matter dust concentration temporal variation dust hazards Mogao Grottoes
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000792883400001
WOS关键词	NORTHWESTERN CHINA ; MINERAL DUST ; SURFACE ; STORM ; GOBI ; SAND ; SIMULATION ; TRANSPORT ; IMPACTS ; REGION
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/392725
推荐引用方式 GB/T 7714	Zhang, Guobin,Tan, Lihai,Zhang, Weimin,et al. Temporal Variation of Airborne Dust Concentrations in the Mogao Grottoes, Dunhuang, China[J],2022,10.
APA	Zhang, Guobin,Tan, Lihai,Zhang, Weimin,Zhan, Hongtao,&Qiu, Fei.(2022).Temporal Variation of Airborne Dust Concentrations in the Mogao Grottoes, Dunhuang, China.FRONTIERS IN ENVIRONMENTAL SCIENCE,10.
MLA	Zhang, Guobin,et al."Temporal Variation of Airborne Dust Concentrations in the Mogao Grottoes, Dunhuang, China".FRONTIERS IN ENVIRONMENTAL SCIENCE 10(2022).