Reactive uptake coefficients for multiphase reactions determined by a dynamic chamber system

Details

• Journal Title:
  Atmospheric Measurement Techniques
• Personal Author:
  Li, Guo ; Su, Hang ; Li, Meng ; Kuhn, Uwe ; Zheng, Guangjie ; Han, Lei ; Bao, Fengxia ; Pöschl, Ulrich ; Cheng, Yafang
• NOAA Program & Office:
  OAR (Oceanic and Atmospheric Research) ; CSL (Chemical Sciences Laboratory) ; CIRES (Cooperative Institute for Research in Environmental Sciences)
• Description:
  Dynamic flow-through chambers are frequently used to measure gas exchange rates between the atmosphere and biosphere on the Earth's surface such as vegetation and soils. Here, we explore the performance of a dynamic chamber system in determining the uptake coefficient γ of exemplary gases (O3 and SO2) on bulk solid-phase samples. After characterization of the dynamic chamber system, the derived γ is compared with that determined from a coated-wall flow tube system. Our results show that the dynamic chamber system and the flow tube method show a good agreement for γin the range of 10−8 to 10−3. The dynamic chamber technique can be used for liquid samples and real atmospheric aerosol samples without complicated coating procedures, which complements the existing techniques in atmospheric kinetic studies.
• Keywords:
  Atmospheric Science
• Source:
  Atmospheric Measurement Techniques, 15(21), 6433-6446
• DOI:
  https://doi.org/10.5194/amt-15-6433-2022
• ISSN:
  1867-8548
• Format:
  PDF
• Publisher:
  Copernicus GmbH
• Document Type:
  Journal Article
• License:
  https://creativecommons.org/licenses/by/4.0/
• Rights Information:
  CC BY
• Compliance:
  Library
• Main Document Checksum:
  urn:sha256:5801b17c8c276eb3b901c73d03e8d1e3f9d7bf81e1e863ecd3eb202d5b830390
• Download URL:
  https://repository.library.noaa.gov/view/noaa/53839/noaa_53839_DS1.pdf
• File Type:
  [PDF - 4.16 MB ]