Chemistry of new particle growth in mixed urban and biogenic emissions – insights from CARES
作者: A. SetyanC. SongM. MerkelW. B. KnightonT. B. OnaschM. R. CanagaratnaD. R. WorsnopA. WiedensohlerJ. E. ShillingQ. Zhang
作者单位: 1Department of Environmental Toxicology, 1 Shields Ave., University of California, Davis, CA 95616, USA
2Atmospheric Sciences and Global Change Division, Pacific Northwest National Laboratory, Richmond, WA 99352, USA
3Leibniz Institute for Tropospheric Research, 04318 Leipzig, Germany
4Montana State University, Bozeman, MT 59717, USA
5Aerodyne Research Inc., Billerica, MA 01821, USA
6Department of Physics, University of Helsinki, 00014 Helsinki, Finland
7now at: Empa, Swiss Federal Laboratories for Materials Science and Technology, 8600 Dübendorf, Switzerland
刊名: Atmospheric Chemistry and Physics, 2014, Vol.14 (13), pp.6477-6494
来源数据库: Copernicus Journal
DOI: 10.5194/acp-14-6477-2014
原始语种摘要: Regional new particle formation and growth events (NPEs) were observed onmost days over the Sacramento and western Sierra foothills area of Californiain June 2010 during the Carbonaceous Aerosols and Radiative Effect Study(CARES). Simultaneous particle measurements at both the T0 (Sacramento, urbansite) and the T1 (Cool, rural site located ~40 km northeast ofSacramento) sites of CARES indicate that the NPEs usually occurred in themorning with the appearance of an ultrafine mode at ~15 nm (inmobility diameter, D m, measured by a mobility particle sizespectrometer operating in the range 10-858 nm) followed by the growth ofthis modal diameter to ~50 nm in the afternoon. These events weregenerally associated with southwesterly winds bringing urban plumes fromSacramento to the T1...
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  • growth 生长
  • particle 颗粒
  • urban 城市
  • concentrations 浓聚物
  • higher 
  • ammonium 
  • quantifying 定量法
  • indicate 指示
  • oxidation 氧化
  • biogenic 生源的