DOI: 10.1002/jgrd.50427
论文题名: The impact of shipping, agricultural, and urban emissions on single particle chemistry observed aboard the R/V Atlantis during CalNex
作者: Gaston C.J. ; Quinn P.K. ; Bates T.S. ; Gilman J.B. ; Bon D.M. ; Kuster W.C. ; Prather K.A.
刊名: Journal of Geophysical Research Atmospheres
ISSN: 21698996
出版年: 2013
卷: 118, 期: 10 起始页码: 5003
结束页码: 5017
语种: 英语
英文关键词: aerosol composition
; air pollution
; CalNex
; mass spectrometry
; single particle
Scopus关键词: Aerosols
; Agriculture
; Air pollution
; Air quality
; Climate change
; Mass spectrometry
; Mixing
; River pollution
; Soot
; Aerosol composition
; Agricultural emissions
; CalNex
; Carbonaceous particles
; Meteorological condition
; Secondary organic aerosols
; Shipboard measurements
; Single particle
; Ships
; aerosol composition
; air quality
; atmospheric pollution
; climate change
; exhaust emission
; mixing ratio
; organic carbon
; soot
; sulfate
; water uptake
; California
; Central Valley [California]
; Riverside
; Sacramento
; United States
; Vindula arsinoe
英文摘要: The Research at the Nexus of Air Quality and Climate Change (CalNex) field campaign was undertaken to obtain a better understanding of the regional impacts of different pollution sources in California. As part of this study, real-time shipboard measurements were made of the size-resolved, single-particle mixing state of submicron and supermicron particles (0.2-3.0 μm aerodynamic diameter) along the California coast where major differences were noted between Southern and Northern California. In Southern California, particles containing soot made up the largest fraction of submicron particles (~38% on average and up to ~89% by number), whereas organic carbon particles comprised the largest fraction of submicron number concentrations (~29% on average and up to ~78% by number) in Northern California including the Sacramento area. The mixing state of these carbonaceous particle types varied during the cruise with sulfate being more prevalent on soot-containing particles in Southern California due to the influence of fresh shipping and port emissions in addition to contributions from marine biogenic emissions. Contributions from secondary organic aerosol species, including amines, and nitrate were more prevalent in Northern California, as well as during time periods impacted by agricultural emissions (e.g., from the inland Riverside and Central Valley regions). These regional differences and changes in the mixing state and sources of particles have implications for heterogeneous reactivity, water uptake, and cloud-nucleating abilities for aerosols in California. Key PointsSouthern California was dominated by soot containing particlesNorthern California was dominated by organic carbon particlesParticle mixing-state was heavily influenced by meteorological conditions ©2013. American Geophysical Union. All Rights Reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/63718
Appears in Collections: 影响、适应和脆弱性 气候减缓与适应
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作者单位: Scripps Institution of Oceanography, University of California, San Diego, San Diego CA, United States; NOAA Pacific Marine Environmental Laboratory, Seattle WA, United States; NOAA Earth System Research Laboratory, Boulder CO, United States; Cooperative Institute for Research in Environmental Sciences (CIRES), University of Colorado Boulder, Boulder CO, United States; Department of Chemistry and Biochemistry, University of California, San Diego, San Diego, CA 92093-0314, United States; Department of Atmospheric Sciences, University of Washington, Seattle WA, United States; Planning and Policy Program, Air Pollution Control Division, Colorado Department of Public Health and Environment, Denver CO, United States
Recommended Citation:
Gaston C.J.,Quinn P.K.,Bates T.S.,et al. The impact of shipping, agricultural, and urban emissions on single particle chemistry observed aboard the R/V Atlantis during CalNex[J]. Journal of Geophysical Research Atmospheres,2013-01-01,118(10)