Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-17-1699-2017 |
Dust deposition and ambient PM10 concentration in northwest China: spatial and temporal variability | |
Zhang, Xiao-Xiao1,2; Sharratt, Brenton3; Chen, Xi1; Wang, Zi-Fa2; Liu, Lian-You4; Guo, Yu-Hong2; Li, Jie2; Chen, Huan-Sheng2; Yang, Wen-Yi2 | |
2017-02-03 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS
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ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2017 |
卷号 | 17期号:3 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; USA |
英文摘要 | Eolian dust transport and deposition are important geophysical processes which influence global biogeochemical cycles. Currently, reliable deposition data are scarce in central and east Asia. Located at the boundary of central and east Asia, Xinjiang Province of northwestern China has long played a strategic role in cultural and economic trade between Asia and Europe. In this paper, we investigated the spatial distribution and temporal variation in dust deposition and ambient PM10 (particulate matter in aerodynamic diameter <= 10 mu m) concentration from 2000 to 2013 in Xinjiang Province. This variation was assessed using environmental monitoring records from 14 stations in the province. Over the 14 years, annual average dust deposition across stations in the province ranged from 255.7 to 421.4 t km(-2). Annual dust deposition was greater in southern Xinjiang (663.6 t km(-2)) than northern (147.8 t km(-2)) and eastern Xinjiang (194.9 t km(-2)). Annual average PM10 concentration across stations in the province varied from 100 to 196 mu gm(-3) and was 70, 115 and 239 mu gm(-3) in northern, eastern and southern Xinjiang, respectively. The highest annual dust deposition (1394.1 t km(-2)) and ambient PM10 concentration (352 mu gm(-3)) were observed in Hotan, which is located in southern Xinjiang and at the southern boundary of the Taklamakan Desert. Dust deposition was more intense during the spring and summer than other seasons. PM10 was the main air pollutant that significantly influenced regional air quality. Annual average dust deposition increased logarithmically with ambient PM10 concentration (R-2 >= 0.81). While the annual average dust storm frequency remained unchanged from 2000 to 2013, there was a positive relationship between dust storm days and dust deposition and PM10 concentration across stations. This study suggests that sand storms are a major factor affecting the temporal variability and spatial distribution of dust deposition in northwest China. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000395097100003 |
WOS关键词 | MINERAL DUST ; DRY DEPOSITION ; AIRBORNE DUST ; AEOLIAN DUST ; CENTRAL-ASIA ; SIMULATED CLIMATOLOGY ; PARTICULATE MATTER ; TAKLIMAKAN DUST ; DESERT DUST ; AIR-QUALITY |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/17294 |
专题 | 地球科学 |
作者单位 | 1.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, State Key Lab Desert & Oasis Ecol, Urumqi 830011, Peoples R China; 2.Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Atmospher Boundary Layer Phys & Atm, Beijing 100029, Peoples R China; 3.Washington State Univ, USDA ARS, 215 Johnson Hall, Pullman, WA 99164 USA; 4.Beijing Normal Univ, Minist Educ, Key Lab Environm Change & Nat Disaster, Beijing 100875, Peoples R China |
推荐引用方式 GB/T 7714 | Zhang, Xiao-Xiao,Sharratt, Brenton,Chen, Xi,et al. Dust deposition and ambient PM10 concentration in northwest China: spatial and temporal variability[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2017,17(3). |
APA | Zhang, Xiao-Xiao.,Sharratt, Brenton.,Chen, Xi.,Wang, Zi-Fa.,Liu, Lian-You.,...&Yang, Wen-Yi.(2017).Dust deposition and ambient PM10 concentration in northwest China: spatial and temporal variability.ATMOSPHERIC CHEMISTRY AND PHYSICS,17(3). |
MLA | Zhang, Xiao-Xiao,et al."Dust deposition and ambient PM10 concentration in northwest China: spatial and temporal variability".ATMOSPHERIC CHEMISTRY AND PHYSICS 17.3(2017). |
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