Seasonal variations and associated health risks of polychlorinated naphthalenes in Markman Canal, Eastern Cape Province, South Africa

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dc.contributor.authorAgunbiade, Idowu Victoria
dc.contributor.authorAdeniji, Abiodun Olagoke
dc.contributor.authorOkoh, Anthony Ifeanyi
dc.contributor.authorOkoh, Omobola Oluranti
dc.date.accessioned2025-10-07T12:22:31Z
dc.date.available2025-10-07T12:22:31Z
dc.date.issued2022-07-01
dc.description.abstractThis study focused on evaluation of the levels, seasonal variations and human health risks associated with polychlorinated naphthalenes (PCNs) in water and sediment samples of Markman Canal using solid phase and soxhlet extraction methods respectively, followed by clean-up and quantification with gas chromatograph coupled with microelectron capture detector. The sum of eight PCNs congener’s (∑8PCNs) in water and sediments varied from 0.035 to 0.699 μg/L and 0.260 to 6744.16 μg/kg dw, respectively. Highest PCNs concentrations were recorded in water during winter, while sediment samples collected during spring contained maximum levels. The estimated toxic equivalency (TEQ) for water and sediments was 1.19× ­10–7–1.47× ­10-4 µg/L and 4.43× ­10−5–4.19× ­10−1 µg/kg consecutively. The PCN levels and TEQ values revealed that this waterbody is polluted but constitutes no excess health risk. Efforts should be made to control all the activities contributing to pollution of this canal.
dc.description.sponsorshipSouth African Medical Research Council (Grant No. UFH/SAMRC/P790)
dc.identifier.citationAgunbiade, I. V., Adeniji, A. O., Okoh, A. I., & Okoh, O. O. (2023). Seasonal variations and associated health risks of polychlorinated naphthalenes in Markman Canal, Eastern Cape Province, South Africa. Environmental Geochemistry and Health, 45(5), 2051-2063
dc.identifier.issn1573-2983
dc.identifier.urihttp://hdl.handle.net/20.500.11837/3246
dc.language.isoen
dc.publisherSpringer
dc.subjectPersistent organic pollutant · Polychlorinated naphthalene · Markman Canal · Toxic equivalency
dc.titleSeasonal variations and associated health risks of polychlorinated naphthalenes in Markman Canal, Eastern Cape Province, South Africa
dc.typeArticle
person.identifier.orcidAgunbiade, Idowu Victoria 0000-0001-5605-0312
person.identifier.orcidAdeniji, Abiodun Olagoke 0000-0002-1095-5025
person.identifier.orcidOkoh, Anthony Ifeanyi 0000-0002-9770-085X
person.identifier.orcidOkoh, Omobola Oluranti 0000-0001-7869-8080

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