DOI: 10.1016/j.atmosenv.2017.09.047
Scopus记录号: 2-s2.0-85031808340
论文题名: Aerosol concentrations and composition in the North Pacific marine boundary layer
作者: Choi Y ; , Rhee T ; S ; , Collett J ; L ; , Jr ; , Park T ; , Park S ; -M ; , Seo B ; -K ; , Park G ; , Park K ; , Lee T
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2017
卷: 171 起始页码: 165
结束页码: 172
语种: 英语
英文关键词: HR-ToF-AMS
; Inorganic and organic aerosols
; Marine aerosol
; Methanesulfonic acid
; SHIPPO
Scopus关键词: Boundary layers
; Factorization
; Nutrients
; Organic acids
; Poles
; Pollution
; Ships
; Sulfur compounds
; Marine aerosols
; Methane sulfonic acid
; Organic aerosol
; SHIPPO
; Tof-ams
; Aerosols
; ammonia
; dimethyl sulfide
; nitrate
; sulfate
; aerosol
; air mass
; ammonium
; biomass burning
; boundary layer
; concentration (composition)
; ice breaker
; nitrate
; nutrient uptake
; organic compound
; pollutant source
; sulfonate
; aerosol
; air pollutant
; air pollution
; Aleutian Island
; ambient air
; analysis
; Article
; atmosphere
; biomass
; biomass burning
; boundary layer
; chemical composition
; China
; concentration (parameters)
; hydrocarbon like organic aerosol
; Japan
; latitude
; mass
; nutrient uptake
; oxidation
; oxidized organic aerosol
; particle size
; particulate matter
; positive matrix factorization analysis
; priority journal
; Russian Federation
; seasonal variation
; secondary organic aerosol
; ship
; South Korea
; spatiotemporal analysis
; summer
; Alaska
; Aleutian Islands
; China
; Japan
; Korea
; Pacific Ocean
; Pacific Ocean (North)
; Siberia
; South Asia
; Tsugaru Strait
; United States
; Vindula arsinoe
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: Ship-borne measurements of inorganic and organic aerosols, including methanesulfonic acid (MSA), were conducted over the Northern Pacific using a High Resolution Time of Flight Aerosol Mass Spectrometer (AMS). This study, conducted aboard the Korean ice breaker R/V Araon, was part of the SHIP-borne Pole-to-Pole Observations (SHIPPO) project. Based on air mass source region, the cruise track could be divided into five sections. Overall, the South Asia and Northern Japan ship transects showed higher aerosol concentrations due to continental pollution and biomass burning sources, respectively. In all five regions, the average mass concentrations of sulfate and organic aerosols (OA) were much higher than concentrations of nitrate and ammonium. Positive matrix factorization (PMF) analysis distinguished two organic aerosol factors as hydrocarbon-like and oxidized OA (HOA and OOA). HOA peaked in South Asia under the influence of anthropogenic pollution source areas, such as China and Korea, and generally decreased with increasing latitude across the full study region. OOA concentrations peaked in Northern Japan near the Tsugaru Strait and appear to reflect fine particle contributions from biomass burning. The mean HOA concentration in the clean marine area (Aleutian Island to Siberia) was 0.06 μg/m3 and comprised approximately 8% of the OA mass fraction. The highest MSA concentrations peaked in the Aleutian Islands at nearly 15 μg/m3, suggesting influence from higher dimethyl sulfide (DMS) emissions resulting from biological nutrient uptake during summer. The MSA/sulfate ratio, an indicator of the relative fine particle contributions of DMS and anthropogenic sources, revealed a sharp gradient as the ship approached the clean marine areas where the dominance of DMS increased. The patterns in OOA, HOA, and MSA concentrations found in this study provide a better understanding of the characteristics of inorganic and organic aerosols in the Northern Pacific Ocean. © 2017 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/82167
Appears in Collections: 气候变化事实与影响
There are no files associated with this item.
作者单位: Department of Environmental Science, Hankuk University of Foreign Studies, Yongin, Gyeonggi, South Korea; Korea Polar Research Institute, Korea Institute of Ocean Science & Technology, Incheon, South Korea; Department of Atmospheric Science, Colorado State University, Fort Collins, CO, United States; Air Quality Research Division, National Institute of Environmental Research, Incheon, South Korea
Recommended Citation:
Choi Y,, Rhee T,S,et al. Aerosol concentrations and composition in the North Pacific marine boundary layer[J]. Atmospheric Environment,2017-01-01,171