DOI: 10.1016/j.atmosenv.2014.07.008
Scopus记录号: 2-s2.0-84903893652
论文题名: Downwind O3 and PM2.5 speciation during the wildfires in 2002 and 2010
作者: Kang C ; -M ; , Gold D ; , Koutrakis P
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2014
卷: 95 起始页码: 511
结束页码: 519
语种: 英语
英文关键词: Downwind effect
; Indoor exposure
; Ozone
; Wildfires
Scopus关键词: Carbon
; Chlorine compounds
; Indoor air pollution
; Ozone
; Potassium compounds
; Rural areas
; Carbon fraction
; Downwind effect
; Elemental compositions
; Indoor environment
; Indoor exposure
; Structural component
; UV-absorbing compounds
; Wildfires
; Fires
; black carbon
; chlorine
; hydroxyl radical
; organic carbon
; oxygen derivative
; ozone
; potassium
; sulfate
; trace element
; atmospheric pollution
; chemical composition
; concentration (composition)
; environmental monitoring
; indoor air
; ozone
; particulate matter
; pyrolysis
; speciation (chemistry)
; wildfire
; air pollution
; air quality standard
; article
; burn
; city
; combustion
; concentration (parameters)
; environmental exposure
; environmental impact
; fire and fire related phenomena
; fogo selvagem
; hypobarism
; mass
; particulate matter
; photooxidation
; plume
; priority journal
; pyrolysis
; rural area
; smoke
; spike
; wind
; wood
; Boston
; Canada
; Massachusetts
; Quebec [Canada]
; United States
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: A series of wildfires in northern Quebec, early July 2002, and in southern Quebec, late May 2010, resulted in severe air pollution downwind. Downwind exposures were investigated to estimate the impact on outdoor and indoor environments. The plumes derived from the wildfires resulted in an increase of over 10ppbv ozone (O3) concentrations in both major cities and rural areas, while O3 enhancement was not observed at locations adjacent to wildfire burning areas. Temporal trend in PM2.5 concentration showed a peak of 105.5μg/m3 on July 7, 2002, while on May 31, 2010 the peak was 151.1μg/m3 in Boston downwind. PM2.5 speciation showed similar trends between the episodes, along with spikes in the PM2.5/PM10 ratio, and in the concentrations of Black Carbon, δC (i.e., UV absorbing compounds minus Black Carbon), Organic Carbon (OC), potassium, and chlorine. OC was the most dominant constituent of the PM2.5 mass in the wildfires. The dominant specific carbon fractions include OC fraction 3, pyrolysis carbon, and EC fraction 1, likely due to pyrolysis of structural components of wood. Indoor PM2.5 peaks at two houses corresponded well with the ambient PM2.5 peak, along with the elemental composition, which could indicate an impact of wildfires on indoor air pollution exposure. © 2014 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/80975
Appears in Collections: 气候变化事实与影响
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作者单位: Exposure, Epidemiology, and Risk Program, Department of Environmental Health, Harvard School of Public Health, Boston, MA 02215, United States; Channing Laboratory, Department of Medicine, Brigham and Women's Hospital, Boston, MA 02115, United States
Recommended Citation:
Kang C,-M,, Gold D,et al. Downwind O3 and PM2.5 speciation during the wildfires in 2002 and 2010[J]. Atmospheric Environment,2014-01-01,95