Correlation between levels of some heavy metals in plants and sediments from a segment of Calabar River and associated creeks in Cross River state of Nigeria

David Bassey, Essien Daniel Udosen

    Research output: Contribution to journalArticle

    1 Citation (Scopus)

    Abstract

    Plants and sediments were collected at three sites along Calabar River (CR), Upper Town Creek (UCC) and Lower Town Creek (LCC). The CR is a major tributary of Cross River, Nigeria. The concentrations of 10 heavy metals were determined and results for Fe, Mn and Zn at almost all the sites showed that the levels of these metals exceeded the amounts present in non-polluted areas. Fe was found in the highest concentration at all three sites in both plants and sediments. Correlation analysis between levels of heavy metals in plants and sediments were also determined. The occurrence of higher concentrations of heavy metals in plants and coastal sediments at CR, UCC and LCC is an indication of anthropogenically induced pollution rather than contributions from natural sources. © 2007 Taylor & Francis.

    Original languageEnglish
    Pages (from-to)7-14
    Number of pages8
    JournalToxicological and Environmental Chemistry
    Volume89
    Issue number1
    DOIs
    Publication statusPublished - 1 Jan 2007

    Keywords

    • Calabar River
    • Heavy metals
    • Nigeria
    • Panicum laxum
    • Sediments

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