State Key Laboratory of Environmental Chemistry and Ecotoxicology,
Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences,
Beijing 100085, China
Jihua Tan
College of Resources and Environment, University of Chinese Academy of
Sciences, Beijing 100049, China
Xuezhi Yang
State Key Laboratory of Environmental Chemistry and Ecotoxicology,
Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences,
Beijing 100085, China
College of Resources and Environment, University of Chinese Academy of
Sciences, Beijing 100049, China
Xu Sun
State Key Laboratory of Environmental Chemistry and Ecotoxicology,
Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences,
Beijing 100085, China
State Key Laboratory of Environmental Chemistry and Ecotoxicology,
Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences,
Beijing 100085, China
College of Resources and Environment, University of Chinese Academy of
Sciences, Beijing 100049, China
Institute of Environment and Health, Jianghan University, Wuhan
430056, China
Guibin Jiang
State Key Laboratory of Environmental Chemistry and Ecotoxicology,
Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences,
Beijing 100085, China
College of Resources and Environment, University of Chinese Academy of
Sciences, Beijing 100049, China
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We investigated for the first time the role of Si during secondary formation process of PM2.5. We show the noncorrelation of Si with the secondary aerosol (SA) formation in Beijing, which reveals a new conservative tracer for aerosol chemistry. The SA contribution can be estimated by using Si as a single tracer instead of commonly used multiple chemical tracers. The correlation analysis of SA with the Si isotopic composition of PM2.5 can also reveal the sources of the precursors of SA.
We investigated for the first time the role of Si during secondary formation process of PM2.5....
