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    Underestimated PAH accumulation potential of blue carbon vegetation: Evidence from sedimentary records of saltmarsh and mangrove in Yueqing Bay, China.

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    Type
    Article
    Authors
    Huang, Runqiu
    Zhang, Chunfang
    Xu, Xiangrong
    Jin, Runjie
    Li, Dan
    Christakos, George
    Xiao, Xi
    He, Junyu
    Agusti, Susana cc
    Duarte, Carlos M. cc
    Wu, Jiaping
    KAUST Department
    Biological and Environmental Science and Engineering (BESE) Division
    Marine Science Program
    Red Sea Research Center (RSRC)
    Date
    2022-01-13
    Embargo End Date
    2024-01-13
    Submitted Date
    2021-10-26
    Permanent link to this record
    http://hdl.handle.net/10754/674958
    
    Metadata
    Show full item record
    Abstract
    Sediments of blue carbon vegetation are becoming a sink of natural and anthropogenic pollutants, such as polycyclic aromatic hydrocarbons (PAHs). However, the extent to which PAHs are accumulated and varied in blue carbon sediments, and the impact of blue carbon vegetation on the accumulation and retention capacity of PAHs, have been poorly explored. This study examines the sedimentary records of PAHs in profiles from mangrove plantations, saltmarsh, and mudflat in Ximen Island and Maoyan Island of Yueqing Bay, China. The existence of blue carbon vegetation provides a sheltered environment for the accelerated burial of sediment and OC. Decadal PAH sedimentation records show staged changes characterized by the emission of PAHs and colonization of blue carbon vegetation, reflecting the accelerated burial of PAHs in sediments by blue carbon vegetation colonization. In addition, the colonization of blue carbon vegetation contributes to the shift of PAH compositions in sediments. This study provides new insights into the underestimated PAH accumulation potential and retention capacity of blue carbon vegetation and the corresponding underlying sediments, supporting the environmental benefits of blue carbon vegetation.
    Citation
    Huang, R., Zhang, C., Xu, X., Jin, R., Li, D., Christakos, G., … Wu, J. (2022). Underestimated PAH accumulation potential of blue carbon vegetation: Evidence from sedimentary records of saltmarsh and mangrove in Yueqing Bay, China. Science of The Total Environment, 152887. doi:10.1016/j.scitotenv.2021.152887
    Sponsors
    This work was supported in part by the Ministry of Natural Resources (Blue Carbon Initiative and Policy), the National Natural Science Foundation of China (42171398), the National Natural Science Foundation of China (U2005207), the Fundamental Research Funds for the Zhejiang Provincial Universities (2021XZZX012). We greatly appreciate the editor and reviewers for their thoughtful and constructive comments/suggestions on the early version of this manuscript.
    Publisher
    Elsevier BV
    Journal
    The Science of the total environment
    DOI
    10.1016/j.scitotenv.2021.152887
    PubMed ID
    35026243
    Additional Links
    https://linkinghub.elsevier.com/retrieve/pii/S0048969721079663
    ae974a485f413a2113503eed53cd6c53
    10.1016/j.scitotenv.2021.152887
    Scopus Count
    Collections
    Articles; Biological and Environmental Science and Engineering (BESE) Division; Red Sea Research Center (RSRC); Marine Science Program

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