Erical predictions of soa generation and concentration change by sectional method

Hiroshi Harashima, Kazuhide Ito

Research output: Contribution to journalArticlepeer-review


ITORecently, theoretical analysis and experiment have been initiated to investigate the generation of secondary organic aerosols (SOA) by chemical reactions in indoor air. In particular, it has been confirmed that SOA are generated by the re-action of ozone with various terpenoids. The overarching goal of this work was to better understand ozone, VOC (volatile organic compounds) and generated SOA distributions within rooms. We carried out cylindrical test chamber experiments to measure SOA generation from the chemical reaction of ozone and limonene and discussed numerical models to describe it. In this paper, we propose a method for predicting the particle size distribution of SOA generated by ozone and limonene chemical reactions in air. In particular, we discuss an analytical method that involves a sectional modeling approach gov-erning equations of SOA. Although the changes in particle size distribution in a 40-section model were reproduced to a certain extent, rigorous modeling for the generation and growth of SOA and an increased number of sections are needed for improvement of prediction accuracy.

Original languageEnglish
Pages (from-to)969-976
Number of pages8
JournalJournal of Environmental Engineering (Japan)
Issue number657
Publication statusPublished - Nov 2010

All Science Journal Classification (ASJC) codes

  • Environmental Engineering


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