التفاصيل البيبلوغرافية
| العنوان: |
Effects of oligomerization and decomposition to the nanoparticle growth, a model study. |
| المؤلفون: |
Heitto, Arto, Lehtinen, Kari, Petäjä, Tuukka, Lopez-Hilfiker, Felipe, Thornton, Joel A., Kulmala, Markku, Yli-Juuti, Taina |
| المصدر: |
Atmospheric Chemistry & Physics Discussions; 7/14/2021, p1-26, 26p |
| مستخلص: |
The rate at which freshly formed secondary aerosol particles grow is an important factor in determining their climate impacts. The growth rate of atmospheric nanoparticles may be affected by particle phase oligomerization and decomposition of condensing organic molecules. We used Model for Oligomerization and Decomposition in Nanoparticle Growth (MODNAG) to investigate the potential atmospheric significance of these effects. This was done by conducting multiple simulations with varying reaction-related parameters (volatilities of the involved compounds and reaction rates) using both artificial and ambient measured gas phase concentrations of organic vapors to define the condensing vapors. While our study does not aim at providing information on any specific reaction, our results indicate that particle phase reactions have significant potential to affect the nanoparticle growth. In simulations where one-third of a volatility basis set bin was allowed to go through particle phase reactions the maximum increase in growth rates was 71% and decrease 26% compared to base case where no particle phase reactions were assumed to take place. These results highlight the importance of investigating and increasing our understanding of particle phase reactions. [ABSTRACT FROM AUTHOR] |
|
Copyright of Atmospheric Chemistry & Physics Discussions is the property of Copernicus Gesellschaft mbH and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) |
| قاعدة البيانات: |
Complementary Index |
