DOI: 10.1016/j.atmosenv.2015.10.082
Scopus记录号: 2-s2.0-84946570657
论文题名: Source apportionment of PM10 mass and particulate carbon in the Kathmandu Valley, Nepal
作者: Kim B ; M ; , Park J ; -S ; , Kim S ; -W ; , Kim H ; , Jeon H ; , Cho C ; , Kim J ; -H ; , Hong S ; , Rupakheti M ; , Panday A ; K ; , Park R ; J ; , Hong J ; , Yoon S ; -C
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2015
卷: 123 起始页码: 190
结束页码: 199
语种: 英语
英文关键词: Kathmandu
; Particulate carbon
; PM10
; SMP model
; Source apportionment
Scopus关键词: Air pollution
; Biomass
; Brick
; Brickmaking
; Crashworthiness
; Dust
; Health
; Kilns
; Landforms
; Particles (particulate matter)
; Soil pollution
; Soils
; Vehicles
; Visibility
; Climate warming
; Control strategies
; Elemental carbon
; Fine particulates
; Kathmandu
; Particulate carbon
; Source apportionment
; Source contributions
; Organic carbon
; black carbon
; carbon
; chemical compound
; air quality
; atmospheric pollution
; automobile
; biomass burning
; black carbon
; carbon
; concentration (composition)
; melting
; multivariate analysis
; particulate matter
; public health
; warming
; air pollution
; Article
; biomass
; carbon source
; chemical composition
; China
; control strategy
; controlled study
; greenhouse effect
; motor vehicle
; multivariate receptor model
; Nepal
; particulate matter
; priority journal
; public health
; South Asia
; statistical model
; winter
; China
; Himalayas
; Kathmandu Valley
; Nepal
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: The Kathmandu Valley in Nepal is a bowl-shaped urban basin in the Himalayan foothills with a serious problem of fine particulate air pollution that impacts local health and impairs visibility. Particulate carbon concentrations have reached severe levels that threaten the health of 3.5 million local residents. Moreover, snow and ice on the Himalayan mountains are melting as a result of additional warming due to particulate carbon, especially high black carbon concentrations. To date, the sources of the Valley's particulate carbon and the impacts of different sources on particulate carbon concentrations are not well understood. Thus, before an effective control strategy can be developed, these particulate carbon sources must be identified and quantified. Our study has found that the four primary sources of particulate carbon in the Kathmandu Valley during winter are brick kilns, motor vehicles, fugitive soil dust, and biomass/garbage burning. Their source contributions are quantified using a recently developed new multivariate receptor model SMP. In contrast to other highly polluted areas such as China, secondary contribution is almost negligible in Kathmandu Valley. Brick kilns (40%), motor vehicles (37%) and biomass/garbage burning (22%) have been identified as the major sources of elemental carbon (black carbon) in the Kathmandu Valley during winter, while motor vehicles (47%), biomass/garbage burning (32%), and soil dust (13%) have been identified as the most important sources of organic carbon. Our research indicates that controlling emissions from motor vehicles, brick kilns, biomass/garbage burning, and soil dust is essential for the mitigation of the particulate carbon that threatens public health, impairs visibility, and influences climate warming within and downwind from the Kathmandu Valley. In addition, this paper suggests several useful particulate carbon mitigation methods that can be applied to Kathmandu Valley and other areas in South Asia with similar sources and high particulate carbon concentrations. © 2015 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81388
Appears in Collections: 气候变化事实与影响
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作者单位: School of Earth and Environmental Sciences, Seoul National University, Seoul, South Korea; IGBu, Corona, CA, United States; National Institute of Environmental Research, Incheon, South Korea; Institute for Advanced Sustainability Studies, Potsdam, Germany; International Centre for Integrated Mountain Development, Kathmandu, Nepal
Recommended Citation:
Kim B,M,, Park J,et al. Source apportionment of PM10 mass and particulate carbon in the Kathmandu Valley, Nepal[J]. Atmospheric Environment,2015-01-01,123