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PAHs, OCPs and PCBs in sediments from three catchments in Durban, South Africa

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dc.contributor.author Vogt, T
dc.contributor.author Pieters, R
dc.contributor.author Newman, Brent K
dc.date.accessioned 2018-10-19T06:03:43Z
dc.date.available 2018-10-19T06:03:43Z
dc.date.issued 2018-04
dc.identifier.citation Vogt, T., Pieters, R. and Newman, B.K. 2018. PAHs, OCPs and PCBs in sediments from three catchments in Durban, South Africa. African Journal of Aquatic Science, vol 43(1), pp 35-49 en_US
dc.identifier.issn 1608-5914
dc.identifier.issn 1727-9364
dc.identifier.uri https://www.tandfonline.com/doi/abs/10.2989/16085914.2018.1445616
dc.identifier.uri http://hdl.handle.net/10204/10474
dc.description Copyright: 2018 Natl Inquiry Services Centre Pty Ltd. Due to copyright restrictions, the attached PDF file only contains the abstract of the full text item. For access to the full text item, please consult the publisher's website. The definitive version of the work is published in African Journal of Aquatic Science, vol 43(1), pp 35-49 en_US
dc.description.abstract Polycyclic aromatic hydrocarbons (PAHs), organochlorine pesticides (OCPs) and polychlorinated biphenyls (PCBs) were analysed from sediment samples collected in 2012 from rivers, surface runoff canals and estuaries in three highly urbanised catchments in durban, KwaZulu-Natal, South Africa. PAHs were ubiquitous, at concentrations between 36–6 800 ng g-1 dry mass (dm). Congener ratio diagnosis suggests the PAHs were derived predominantly from pyrogenic sources. Four OCPs and/or their metabolites were detected at varying frequencies and concentrations. Of these, dichlorodiphenyltrichloroethane (ddT) and metabolites were most frequently detected and were at a high concentration in sediment in some systems. Toxaphene was detected at a high concentration at some sites. The total PCB concentration varied widely, from below the method detection limit to 110 ng g-1 (dm). Based on the comparison of chemical concentrations to international sediment quality guidelines, PAH, OCP and PCB concentrations in most sediment samples posed a low risk to sediment-dwelling organisms. However, in some instances the risk was moderate or high. It is recommended that these compounds be monitored more frequently and comprehensively in aquatic ecosystems to better understand the ecological and human health implications. en_US
dc.language.iso en en_US
dc.publisher NATL INQUIRY SERVICES CENTRE PTY LTD en_US
dc.relation.ispartofseries Workflow;20749
dc.subject Dichlorodiphenyltrichloroethane en_US
dc.subject DDT en_US
dc.subject Organic contaminants en_US
dc.subject Sediment-dwelling organisms en_US
dc.subject Sediment quality guidelines en_US
dc.title PAHs, OCPs and PCBs in sediments from three catchments in Durban, South Africa en_US
dc.type Article en_US


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