• Login
    View Item 
    •   DSpace Home
    • Institute's contributions
    • Scholarly literature
    • View Item
    •   DSpace Home
    • Institute's contributions
    • Scholarly literature
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Seasonal Variability in Fine Particulate Matter Water Content and Estimated pH over a Coastal Region in the Northeast Arabian Sea

    Thumbnail
    View/Open
    10944.pdf (3.848Mb)
    Date
    2023
    Author
    Shukla, G.
    Sudheer, A.K.
    Gunthe, S.S.
    Beig, G.
    Kumar, Ashwini
    Metadata
    Show full item record
    Abstract
    The acidity of atmospheric particles can promote specific chemical processes that result in the production of extra condensed phases from lesser volatile species (secondary fine particulate matter), change the optical and water absorption characteristics of particles, and enhance trace metal solubility that can function as essential nutrients in nutrient-limited environments.In this study, we present an estimated pH of fine particulate matter (FPM) through a thermodynamic model and assess its temporal variability over a coastal location in the northeast Arabian Sea.Here, we have used the chemical composition of FPM (PM2.5) collected during the period between 2017-2019.Chemical composition data showed large variability in water-soluble ionic concentrations (WSIC; range: 2.3-39.9 �g m-3) with higher and lower average values during the winter and summer months, respectively.SO42- ions were predominant among anions, while NH4+ was a major contributor among cations throughout the season.The estimated pH of FPM from the forward and reverse modes exhibits a moderate correlation for winter and summer samples.The estimated pH of FPM is largely regulated by SO42- content and strongly depends on the relative ambient humidity, particularly in the forward mode.Major sources of FPM assessed based on Positive matrix factorization (PMF) and air-mass back trajectory analyses demonstrate the dominance of natural sources (sea salt and dust) during summer months, anthropogenic sources in winter months and mixed sources during the post-monsoon season
    URI
    https://doi.org/10.3390/ATMOS14020259
    https://drs.nio.org/drs/handle/2264/8914
    Collections
    • Scholarly literature [9074]

    DSpace software copyright © 2002-2016  DuraSpace
    Contact Us | Send Feedback
    Theme by 
    Atmire NV
     

     

    Browse

    All of DSpaceCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsThis CollectionBy Issue DateAuthorsTitlesSubjects

    My Account

    LoginRegister

    DSpace software copyright © 2002-2016  DuraSpace
    Contact Us | Send Feedback
    Theme by 
    Atmire NV