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  • Characterization of aerosol over the Northern South China Sea during two cruises in 2003

    Author(s)
    Zhang, Xingying
    Zhuang, Guoshun
    Guo, Jinghua
    Yin, Kedong
    Zhang, Peng
    Griffith University Author(s)
    Yin, Kedong
    Year published
    2007
    Metadata
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    Abstract
    Atmospheric transport of trace elements has been found to be an important pathway for their input to the ocean. TSP, PM10, and PM2.5 aerosol samples were collected over the Northern South China Sea in two cruises in 2003 to estimate the input of aerosol from continent to the ocean. About 23 elements and 14 soluble ions in aerosol samples were measured. The average mass concentration of TSP in Cruise I in January (78 姭-3) was ~twice of that in Cruise II in April (37 姭-3). Together with the crustal component, heavy metals from pollution sources over the land (especially from the industry and automobiles in Guangzhou) were ...
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    Atmospheric transport of trace elements has been found to be an important pathway for their input to the ocean. TSP, PM10, and PM2.5 aerosol samples were collected over the Northern South China Sea in two cruises in 2003 to estimate the input of aerosol from continent to the ocean. About 23 elements and 14 soluble ions in aerosol samples were measured. The average mass concentration of TSP in Cruise I in January (78 姭-3) was ~twice of that in Cruise II in April (37 姭-3). Together with the crustal component, heavy metals from pollution sources over the land (especially from the industry and automobiles in Guangzhou) were transported to and deposited into the ocean. The atmospheric MSA concentrations in PM2.5 (0.048 姭-3 in Cruise I and 0.043 姭-3 in Cruise II) over Northern South China Sea were comparable to those over other coastal regions. The ratio of non-sea-salt (NSS)-sulfate to MSA is 103-655 for Cruise I and 15-440 for Cruise II in PM2.5 samples, which were much higher than those over remote oceans. The estimated anthropogenic sulfate accounts for 83-98% in Cruise I and 63-95% in Cruise II of the total NSS-sulfate. Fe (II) concentration in the aerosols collected over the ocean ranged from 0.1 to 0.9 mgm 3, accounting for 16-82% of the total iron in the aerosol, which could affect the marine biogeochemical cycle greatly.
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    Journal Title
    Atmospheric Environment
    Volume
    41
    Publisher URI
    http://www.sciencedirect.com/science/journal/13522310
    DOI
    https://doi.org/10.1016/j.atmosenv.2007.06.031
    Subject
    Atmospheric Sciences not elsewhere classified
    Statistics
    Atmospheric Sciences
    Environmental Engineering
    Publication URI
    http://hdl.handle.net/10072/22244
    Collection
    • Journal articles

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