DOI: 10.1016/j.atmosenv.2019.117112
论文题名: An assessment of natural and anthropogenic trace elements in the atmospheric deposition during 1776–2004 A.D. using the Miaoergou ice core, eastern Tien Shan, China
作者: Zou X. ; Hou S. ; Wu S. ; Zhang W. ; Liu K. ; Yu J. ; Liu Y. ; Pang H.
刊名: Atmospheric Environment
ISSN: 1352-2310
出版年: 2020
卷: 221 语种: 英语
英文关键词: Arid regions
; Coal combustion
; Ice
; Industrial emissions
; Meteorological problems
; Trace elements
; Agricultural development
; Anthropogenic contribution
; Anthropogenic sources
; Atmospheric depositions
; Eastern Tien Shan
; Historical perspective
; Ice core
; Industrial revolutions
; Air pollution
; antimony
; arsenic
; barium
; bismuth
; chromium
; coal
; cobalt
; copper
; ice
; lead
; manganese
; molybdenum
; natural product
; nickel
; rubidium
; strontium
; thallium
; thorium
; tin
; trace metal
; uranium
; vanadium
; anthropology
; Article
; atmospheric deposition
; China
; combustion
; concentration (parameter)
; controlled study
; desert
; glacier
; historical period
; mining
; Northern Hemisphere
; priority journal
学科: Air pollution
; Eastern Tien Shan
; Ice core
; Trace elements
中文摘要: An annually resolved trace element (TE) record is established for V, Mn, Co, Ni, Cu, As, Rb, Sr, Mo, Sn, Sb, Ba, Tl, Bi, Th, U, Cr, and Pb from the Miaoergou ice core, eastern Tien Shan, China, covering the period 1776–2004 A.D. Using this record, we examined the continuous changes of atmospheric TE compositions and identified their natural and anthropogenic sources based on the analysis of their enrichment factors (EF) and excess (Ex) concentrations. First, the record shows high concentrations of crustal elements during the periods of 1787–1813 A.D., 1825–1887 A.D., 1941–1978 A.D., likely originated from the surrounding deserts, especially the Taklimakan Desert. Second, similar to other natural archive records from the Northern Hemisphere, the data show sporadic Ex concentrations of Pb, Sn, Cu, Tl before the 1950s, likely related to the coal combustion and non-ferrous production/smelting in the European countries since the Industrial Revolution. Finally, the record reveals significant anthropogenic contribution to concentrations of Pb, Sn, Cu, Sb, As, Bi, and Tl in the second half of the 20th century. The Ex concentration of these elements started to increase sharply in the 1950s, reached the maximum levels in the 1970s–1980s, subsequently declined in the early 1990s, and finally rose again in the late 1990s. The temporal TE trends could reflect the industrial and agricultural development in the possible source regions (e.g., the former Soviet Union). Therefore, our high-resolution record of atmospheric TEs provides a valuable historical perspective on air pollution emissions in these regions surrounding Miaoergou since the Industrial Revolution. © 2019 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/161096
Appears in Collections: 气候变化与战略
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作者单位: School of Geographic and Oceanographic Sciences, Nanjing University, Nanjing, China; CAS Center for Excellence in Tibetan Plateau Earth Sciences, Beijing, China; Department of Geology, University of Dayton, Dayton, OH, United States; State Key Laboratory of Cryospheric Sciences, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Science, Lanzhou, China
Recommended Citation:
Zou X.,Hou S.,Wu S.,et al. An assessment of natural and anthropogenic trace elements in the atmospheric deposition during 1776–2004 A.D. using the Miaoergou ice core, eastern Tien Shan, China[J]. Atmospheric Environment,2020-01-01,221