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    Response of Anthropogenic Volatile Organic Compound Emissions to Urbanization in Asia Probed With TROPOMI and VIIRS Satellite Observations

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    Authors
    Pu, D.
    Zhu, L.
    De Smedt, I.
    Li, X.
    Sun, W.
    Wang, D.
    Liu, S.
    Li, J.
    Shu, L.
    Chen, Y.
    Sun, S.
    Zuo, X.
    Fu, W.
    Xu, P.
    Yang, X.
    Fu, T.-M.
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    Discipline
    Earth and related Environmental sciences
    Subject
    non-methane volatile organic compounds
    TROPOMI
    VIIRS
    HCHO
    night-time light
    urbanization
    Audience
    Scientific
    Date
    2022
    Metadata
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    Description
    Emissions of air pollutants and their precursors in urban air closely relate to urbanization involving economic development, population growth, and industrialization. Here we use formaldehyde (HCHO) columns from the TROPOspheric Monitoring Instrument (TROPOMI), night-time light (NTL) radiance from the Visible Infrared Imaging Radiometer Suite, and population density data as respective proxies to explore how anthropogenic non-methane volatile organic compound (NMVOC) emissions evolve with urbanization in Asia. HCHO columns correlate moderately to highly (0.64 ≤ r ≤ 0.99) with the NTL radiance within most major Asian countries. On both national (across Asia) and provincial scales (within China), HCHO columns increase monotonically with NTL radiance or population density with a log-linear pattern, implying anthropogenic NMVOC emissions in Asia may similarly respond to urbanization with no apparent turnover yet. Our study confirms TROPOMI HCHO columns as a proxy of anthropogenic NMVOC emissions.
    Citation
    Pu, D.; Zhu, L.; De Smedt, I.; Li, X.; Sun, W.; Wang, D.; Liu, S.; Li, J.; Shu, L.; Chen, Y.; Sun, S.; Zuo, X.; Fu, W.; Xu, P.; Yang, X.; Fu, T.-M. (2022). Response of Anthropogenic Volatile Organic Compound Emissions to Urbanization in Asia Probed With TROPOMI and VIIRS Satellite Observations. , Geophysical Research Letters, Vol. 49, Issue 18, e2022GL099470, DOI: 10.1029/2022GL099470.
    Identifiers
    uri: https://orfeo.belnet.be/handle/internal/10713
    doi: http://dx.doi.org/10.1029/2022GL099470
    scopus:
    Type
    Article
    Peer-Review
    Yes
    Language
    eng
    Links
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