Collaborative Project: Understanding the Chemical Processes tat Affect Growth rates of Freshly Nucleated Particles

McMurry, Peter¹  Smuth, James² 

[1] Univ. of Minnesota, Minneapolis, MN (United States);University Corporation for Atmospheric Research, Irvine, CA (United States)

关键词: atmospheric new particle formation;    thermal desorption chemical ionization mass spectrometer;    nanoparticle;    nucleation;   

DOI  :  10.2172/1242486
RP-ID  :  DOE-UMN--6861
PID  :  OSTI ID: 1242486

美国|英语

来源: SciTech Connect

【 摘 要 】

This final technical report describes our research activities that have, as the ultimate goal, the development of a model that explains growth rates of freshly nucleated particles. The research activities, which combine field observations with laboratory experiments, explore the relationship between concentrations of gas-phase species that contribute to growth and the rates at which those species are taken up. We also describe measurements of the chemical composition of freshly nucleated particles in a variety of locales, as well as properties (especially hygroscopicity) that influence their effects on climate.