A study of the morphology and effective density of externally mixed black carbon aerosols in ambient air using a size-resolved single-particle soot photometer (SP2)
Key Laboratory of Regional Climate-Environment for Temperate East Asia
(RCE-TEA), Institute of Atmospheric Physics, Chinese Academy of Sciences,
Beijing 100029, China
Yunjie Xia
Key Laboratory of Regional Climate-Environment for Temperate East Asia
(RCE-TEA), Institute of Atmospheric Physics, Chinese Academy of Sciences,
Beijing 100029, China
University of Chinese Academy of Sciences, Beijing 100049, China
Rujin Huang
Key Laboratory of Aerosol Chemistry and Physics, State Key Laboratory
of Loess and Quaternary Geology, Institute of Earth and Environment, Chinese
Academy of Sciences, Xi'an 710061, China
Key Laboratory of Middle Atmosphere and Global Environment Observation
(LAGEO), Institute of Atmospheric Physics, Chinese Academy of Sciences,
Beijing 100029, China
Key Laboratory of Middle Atmosphere and Global Environment Observation
(LAGEO), Institute of Atmospheric Physics, Chinese Academy of Sciences,
Beijing 100029, China
Key Laboratory of Regional Climate-Environment for Temperate East Asia
(RCE-TEA), Institute of Atmospheric Physics, Chinese Academy of Sciences,
Beijing 100029, China
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The morphology and effective density of externally mixed black carbon (extBC) aerosols were studied using a tandem technique coupling a DMA with a SP2. The study extended the mass–mobility relationship to large extBC with a mobility diameter larger than 350 nm, a size range seldom included in previous tandem measurements of BC aggregates. On this basis, quantities such as the mass–mobility scaling exponent were revealed for extBC in urban Beijing.
The morphology and effective density of externally mixed black carbon (extBC) aerosols were...
