127I and 129I Species and Transformation in the Baltic Proper, Kattegat, and Skagerrak Basins

P. Yi, A. Aldahan, G. Possnert, Xiaolin Hou, Violeta Hansen, B Wang

    Research output: Contribution to journalJournal articleResearchpeer-review

    Abstract

    Occurrence of anthropogenic 129I in seawater has provided invaluable information about water circulation and exchange rates, but results on 129I species (iodide and iodate) are limited and only available for surface water. We here present the first extensive results on 129I and 127I species in samples of seawater depth profiles, which were collected in August 2006 and April 2007 in the Skagerrak, Kattegat, and Baltic Proper. The results expose ≤10% annual reduction of iodate as 129I is transported from the English Channel along the Dutch coast and German Bight into the Skagerrak and Kattegat. The results also suggest strong variability between surface and bottom seawater with respect to the predominant iodine species. Distribution of iodide and iodate of both 127I and 129I in the Kattegat mainly reflects water mixing process rather than speciation transformation. In water of the Baltic Proper, high 127I–/127IO3– and 129I–/129IO3– values suggest effective reduction of iodate with a maximum rate of 8 × 10–7 (127IO3–) and 6 × 10–14 (129IO3–) (g/m3.day). The reduction process of iodate seems to be related to decomposition of organic matter and photochemically induced reactions.
    Original languageEnglish
    JournalEnvironmental Science & Technology (Washington)
    Volume46
    Issue number20
    Pages (from-to)10948-10956
    ISSN0013-936X
    DOIs
    Publication statusPublished - 2012

    Cite this

    Yi, P. ; Aldahan, A. ; Possnert, G. ; Hou, Xiaolin ; Hansen, Violeta ; Wang, B. / 127I and 129I Species and Transformation in the Baltic Proper, Kattegat, and Skagerrak Basins. In: Environmental Science & Technology (Washington). 2012 ; Vol. 46, No. 20. pp. 10948-10956.
    @article{bc0970b2718e45b88e353a16de49713d,
    title = "127I and 129I Species and Transformation in the Baltic Proper, Kattegat, and Skagerrak Basins",
    abstract = "Occurrence of anthropogenic 129I in seawater has provided invaluable information about water circulation and exchange rates, but results on 129I species (iodide and iodate) are limited and only available for surface water. We here present the first extensive results on 129I and 127I species in samples of seawater depth profiles, which were collected in August 2006 and April 2007 in the Skagerrak, Kattegat, and Baltic Proper. The results expose ≤10{\%} annual reduction of iodate as 129I is transported from the English Channel along the Dutch coast and German Bight into the Skagerrak and Kattegat. The results also suggest strong variability between surface and bottom seawater with respect to the predominant iodine species. Distribution of iodide and iodate of both 127I and 129I in the Kattegat mainly reflects water mixing process rather than speciation transformation. In water of the Baltic Proper, high 127I–/127IO3– and 129I–/129IO3– values suggest effective reduction of iodate with a maximum rate of 8 × 10–7 (127IO3–) and 6 × 10–14 (129IO3–) (g/m3.day). The reduction process of iodate seems to be related to decomposition of organic matter and photochemically induced reactions.",
    author = "P. Yi and A. Aldahan and G. Possnert and Xiaolin Hou and Violeta Hansen and B Wang",
    year = "2012",
    doi = "10.1021/es301979r",
    language = "English",
    volume = "46",
    pages = "10948--10956",
    journal = "Environmental Science & Technology (Washington)",
    issn = "0013-936X",
    publisher = "American Chemical Society",
    number = "20",

    }

    127I and 129I Species and Transformation in the Baltic Proper, Kattegat, and Skagerrak Basins. / Yi, P.; Aldahan, A.; Possnert, G.; Hou, Xiaolin; Hansen, Violeta; Wang, B.

    In: Environmental Science & Technology (Washington), Vol. 46, No. 20, 2012, p. 10948-10956.

    Research output: Contribution to journalJournal articleResearchpeer-review

    TY - JOUR

    T1 - 127I and 129I Species and Transformation in the Baltic Proper, Kattegat, and Skagerrak Basins

    AU - Yi, P.

    AU - Aldahan, A.

    AU - Possnert, G.

    AU - Hou, Xiaolin

    AU - Hansen, Violeta

    AU - Wang, B

    PY - 2012

    Y1 - 2012

    N2 - Occurrence of anthropogenic 129I in seawater has provided invaluable information about water circulation and exchange rates, but results on 129I species (iodide and iodate) are limited and only available for surface water. We here present the first extensive results on 129I and 127I species in samples of seawater depth profiles, which were collected in August 2006 and April 2007 in the Skagerrak, Kattegat, and Baltic Proper. The results expose ≤10% annual reduction of iodate as 129I is transported from the English Channel along the Dutch coast and German Bight into the Skagerrak and Kattegat. The results also suggest strong variability between surface and bottom seawater with respect to the predominant iodine species. Distribution of iodide and iodate of both 127I and 129I in the Kattegat mainly reflects water mixing process rather than speciation transformation. In water of the Baltic Proper, high 127I–/127IO3– and 129I–/129IO3– values suggest effective reduction of iodate with a maximum rate of 8 × 10–7 (127IO3–) and 6 × 10–14 (129IO3–) (g/m3.day). The reduction process of iodate seems to be related to decomposition of organic matter and photochemically induced reactions.

    AB - Occurrence of anthropogenic 129I in seawater has provided invaluable information about water circulation and exchange rates, but results on 129I species (iodide and iodate) are limited and only available for surface water. We here present the first extensive results on 129I and 127I species in samples of seawater depth profiles, which were collected in August 2006 and April 2007 in the Skagerrak, Kattegat, and Baltic Proper. The results expose ≤10% annual reduction of iodate as 129I is transported from the English Channel along the Dutch coast and German Bight into the Skagerrak and Kattegat. The results also suggest strong variability between surface and bottom seawater with respect to the predominant iodine species. Distribution of iodide and iodate of both 127I and 129I in the Kattegat mainly reflects water mixing process rather than speciation transformation. In water of the Baltic Proper, high 127I–/127IO3– and 129I–/129IO3– values suggest effective reduction of iodate with a maximum rate of 8 × 10–7 (127IO3–) and 6 × 10–14 (129IO3–) (g/m3.day). The reduction process of iodate seems to be related to decomposition of organic matter and photochemically induced reactions.

    U2 - 10.1021/es301979r

    DO - 10.1021/es301979r

    M3 - Journal article

    VL - 46

    SP - 10948

    EP - 10956

    JO - Environmental Science & Technology (Washington)

    JF - Environmental Science & Technology (Washington)

    SN - 0013-936X

    IS - 20

    ER -