DOI: 10.1038/ngeo2724
论文题名: Space-based detection of missing sulfur dioxide sources of global air pollution
作者: McLinden C.A. ; Fioletov V. ; Shephard M.W. ; Krotkov N. ; Li C. ; Martin R.V. ; Moran M.D. ; Joiner J.
刊名: Nature Geoscience
ISSN: 17520894
出版年: 2016
卷: 9, 期: 7 起始页码: 496
结束页码: 500
语种: 英语
Scopus关键词: atmospheric pollution
; bottom-up approach
; detection method
; emission inventory
; global change
; pollutant source
; pollution effect
; satellite data
; space technology
; sulfur dioxide
; Arabian Sea
; Indian Ocean
; Persian Gulf
英文摘要: Sulfur dioxide is designated a criteria air contaminant (or equivalent) by virtually all developed nations. When released into the atmosphere, sulfur dioxide forms sulfuric acid and fine particulate matter, secondary pollutants that have significant adverse effects on human health, the environment and the economy. The conventional, bottom-up emissions inventories used to assess impacts, however, are often incomplete or outdated, particularly for developing nations that lack comprehensive emission reporting requirements and infrastructure. Here we present a satellite-based, global emission inventory for SO2 that is derived through a simultaneous detection, mapping and emission-quantifying procedure, and thereby independent of conventional information sources. We find that of the 500 or so large sources in our inventory, nearly 40 are not captured in leading conventional inventories. These missing sources are scattered throughout the developing world-over a third are clustered around the Persian Gulf-and add up to 7 to 14 Tg of SO2yr-1, or roughly 6-12% of the global anthropogenic source. Our estimates of national total emissions are generally in line with conventional numbers, but for some regions, and for SO2 emissions from volcanoes, discrepancies can be as large as a factor of three or more. We anticipate that our inventory will help eliminate gaps in bottom-up inventories, independent of geopolitical borders and source types. © 2016 Macmillan Publishers Limited. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/105978
Appears in Collections: 气候减缓与适应 科学计划与规划
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作者单位: Air Quality Research Division, Environment and Climate Change Canada, Toronto, Canada; Atmospheric Chemistry and Dynamics Laboratory, Goddard Space Flight Center, Greenbelt, MD, United States; Earth System Science Interdisciplinary Center, University of Maryland, College Park, MD, United States; Dalhousie University, Department of Physics and Atmospheric Science, Halifax, NS, Canada; Harvard-Smithsonian Center for Astrophysics, Cambridge, MA, United States
Recommended Citation:
McLinden C.A.,Fioletov V.,Shephard M.W.,et al. Space-based detection of missing sulfur dioxide sources of global air pollution[J]. Nature Geoscience,2016-01-01,9(7)