Bimodal character of accumulation mode aerosol mass distributions in Southern California
作者： Susanne Hering , AnnMarie Eldering , John H. Seinfeld
DOI: 10.1016/S1352-2310(96)00175-6
关键词: Mode (statistics) 、 Environmental science 、 Chemical composition 、 Aerosol 、 Chemical species 、 Particle size 、 Mineralogy 、 Condensation 、 Calibration 、 Particle
摘要: Size-resolved measurements of fine particle chemical composition and physical size distributions obtained during the Southern California Air Quality Study (SCAQS) are compared. Number ambient aerosols were measured using optical counters electrical aerosol analyzers. Optical counter data reduced an ambient-based calibration. Mass inferred from sum size-resolved as by impactors. with calibration compare well to impactor measurements. Both sets show that accumulation mode total mass distribution may be bimodal. Condensation droplet modes previously identified in species frequently apparent distribution.
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