期刊
AEROSOL SCIENCE AND TECHNOLOGY
卷 43, 期 7, 页码 673-678出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/02786820902832960
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资金
- NSF [ATM-0449778]
- University of California Transportation Research Center
Real time secondary organic aerosol (SOA) density evolution for m-xylene photo-oxidation and -pinene ozonolysis was obtained using an Aerosol Particle Mass Analyzer (APM)/Scanning Mobility Particle Spectrometer (SMPS) setup, which has been modified to achieve higher transmission of particles and improved sampling frequency. The aerosol density of SOA generated from -pinene ozonolysis was found to be 1.24 0.03 g/cm3 while the aerosol generated from m-xylene photo-oxidation was determined to be 1.35 0.03 g/cm3. These results confirm the measurement approach from a combined SMPS and Aerodyne Aerosol Mass Spectrometer (AMS) system and are found to be within good agreement with the effective density measurements.
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