DOI: 10.1016/j.atmosenv.2015.08.038
Scopus记录号: 2-s2.0-84941268420
论文题名: Characterization of aerosol composition, concentrations, and sources at Baengnyeong Island, Korea using an aerosol mass spectrometer
作者: Lee T ; , Choi J ; , Lee G ; , Ahn J ; , Park J ; S ; , Atwood S ; A ; , Schurman M ; , Choi Y ; , Chung Y ; , Collett J ; L ; , Jr
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2015
卷: 120 起始页码: 297
结束页码: 306
语种: 英语
英文关键词: Baengnyeong island
; Biomass burning
; HR-ToF-AMS
; Long-range transport
; Potential source contribution
Scopus关键词: Biogeochemistry
; Biological materials
; Biomass
; Factorization
; Mass spectrometers
; Organic compounds
; Oxidation
; Particle size
; Size distribution
; Spectrometers
; Sulfur compounds
; Baengnyeong island
; Biomass-burning
; Long range transport
; Potential sources
; Tof-ams
; Aerosols
; ammonia
; chemical compound
; hydrocarbon
; nitrate
; organic matter
; sulfate
; aerosol composition
; ammonium
; biomass burning
; chemical analysis
; concentration (composition)
; long range transport
; mass spectrometry
; nitrate
; particulate organic matter
; pollutant source
; pollutant transport
; size distribution
; spatiotemporal analysis
; sulfate
; aerosol
; air pollution
; Article
; biomass
; boundary layer
; China
; circadian rhythm
; Korea
; mass spectrometer
; particulate matter
; prescribed burning
; priority journal
; rural area
; season
; South Korea
; Baegryeong Island
; China
; Kyonggi
; South Korea
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: To improve understanding of the sources and chemical properties of particulate pollutants on the western side of the Korean Peninsula, an Aerodyne High Resolution Time of Flight Aerosol Mass Spectrometer (HR-ToF-AMS) measured non-refractory fine (PM1) particles from May to November, 2011 at Baengnyeong Island, South Korea. Organic matter and sulfate were generally the most abundant species and exhibited maximum concentrations of 36 μg/m3 and 39 μg/m3, respectively. Nitrate concentrations peaked at 32 μg/m3 but were typically much lower than sulfate and organic matter concentrations. May, September, October, and November featured the highest monthly average concentrations, with lower concentrations typically observed from June through August. Potential source contribution function (PSCF) analysis and individual case studies revealed that transport from eastern China, an area with high SO2 emissions, was associated with high particulate sulfate concentrations at the measurement site. Observed sulfate aerosol sometimes was fully neutralized by ammonium but often was acidic; the average ammonium to sulfate molar ratio was 1.49. Measured species size distributions revealed a range of sulfate particle size distributions with modes between 100 and 600 nm. Organic aerosol source regions were widespread, including contributions from eastern China and South Korea. Positive matrix factorization (PMF) analysis indicated three "factors," or types of organic aerosol, comprising one primary, hydrocarbon-like organic aerosol (HOA) and two oxidized organic aerosol (OOA) components, including a more oxidized (MO-OOA) and a less oxidized (LO-OOA) oxidized organic aerosol. On average, HOA and OOA contributed 21% and 79% of the organic mass (OM), respectively, with the MO-OOA fraction nearly three times as abundant as the LO-OOA fraction. Biomass burning contributions to observed OM were low during the late spring/early summer agricultural burning season in eastern China, since airflow into eastern China during the Asian Monsoon generally prevents transport of emissions eastward to the Korean Peninsula. Concentrations of the m/z 60 AMS biomass burning marker were more abundant in autumn, when transport patterns appeared to bring some smoke from fires in northern Asia to the island. © 2015 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81504
Appears in Collections: 气候变化事实与影响
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作者单位: Department of Environmental Science, Hankuk University of Foreign Studies, Yongin, South Korea; Department of Atmospheric Science, Colorado State University, Fort Collins, United States; Climate and Air Quality Research Department, National Institute of Environmental Research, Incheon, South Korea
Recommended Citation:
Lee T,, Choi J,, Lee G,et al. Characterization of aerosol composition, concentrations, and sources at Baengnyeong Island, Korea using an aerosol mass spectrometer[J]. Atmospheric Environment,2015-01-01,120