Hourly and daily patterns of particle-phase organic and elemental carbon concentrations in the urban atmosphere.
作者： Min-Suk Bae , James J. Schauer , Jeffery T. DeMinter , Jay R. Turner
DOI: 10.1080/10473289.2004.10470957
关键词: Positive bias 、 Mineralogy 、 Particle 、 Atmosphere 、 Total organic carbon 、 Elemental carbon 、 Environmental science 、 Environmental chemistry 、 Annual average
摘要: Abstract Two semicontinuous elemental and organic carbon analyzers along with daily integrated samplers, which were used for laboratory analysis, operated to measure PM2.5 (OC) (EC) the entire year of 2002 at St. Louis Midwest Supersite. The annual-average denuded OC EC concentrations 3.88 0.7 μg/m3, respectively. A comparison 24-hr average undenuded measurements showed a positive bias measurement that was best represented by intercept 0.34 ± 0.1 μg/m3 slope 1.06 0.02, an R2 0.91. full demonstrate one-in-six-day sampling strategy this site accurately represents annual concentrations. Although fine particle did not correlate day week, significant weekly pattern, highest concentration during middle of...
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