Environmental Monitoring of the Kafue River, Located in the Copperbelt, Zambia

Document identifier: oai:DiVA.org:ltu-7696
Access full text here:10.1007/s002449910044
Keyword: Natural Sciences, Earth and Related Environmental Sciences, Geochemistry, Naturvetenskap, Geovetenskap och miljövetenskap, Geokemi, Applied Geology, Tillämpad geologi
Publication year: 2000
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Abstract:

Zambia is a country with an extensive mining industry with the majority of mines located in the Copperbelt province. Through this region of the country, the Kafue River drains and receives effluent water from mining activities as well as from other industrial point sources. In addition, production of agricultural products and pest control requires use of different pesticides in the area. Information on industrial and agricultural pollution has not been clearly identified in Zambia, and little attention has been paid to pollution control and possible impact of metals, pesticides, and other persistent compounds in the environment. The objective of this study was to introduce and to evaluate a few methodologies based on in situ bioassays for environmental assessment to promote sustainable and environmentally sound water resource management of the Kafue River. The results show that caged threespot tilapia exposed downstream of industrial points sources rapidly bioaccumulate several trace elements, i.e., Cd, Co, Cu, Cr, Ni. These elements also occurred in much higher concentrations in water samples downstream of the industrial area compared with a locality upstream. Furthermore, the use of a semipermeable membrane device (SPMD) for passive absorption of lipophilic pollutants in the water showed relatively high concentration of several pesticides, i.e., DDT with major metabolites, PCB, and dieldrin. The present study shows that only 2 weeks of in situ studies in waters contaminated by pollutants affects in situ exposed fish and that the correlation between water and tissue concentrations was relatively good. Both trace elements and persistent organic pollutants occurred in such high concentrations that they must be considered from ecotoxicological aspects and may affect aquatic animal health

Authors

L. Norrgren

Department of Pathology, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Uppsala
Other publications >>

Ulf T. Pettersson

Luleå tekniska universitet
Other publications >>

S. Örn

Department of Pathology, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Uppsala
Other publications >>

P-A Bergqvist

Institute of Environmental Chemistry, Umeå University
Other publications >>

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        identifier: oai:DiVA.org:ltu-7696
        datestamp: 2021-04-19T13:00:36Z
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                version: 3.7
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                recordCreationDate: 2016-09-29
            identifier: 
                http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-7696
                10.1007/s002449910044
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            titleInfo: 
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                    lang: eng
                title: Environmental Monitoring of the Kafue River Located in the Copperbelt Zambia
            abstract: 
Zambia is a country with an extensive mining industry with the majority of mines located in the Copperbelt province. Through this region of the country the Kafue River drains and receives effluent water from mining activities as well as from other industrial point sources. In addition production of agricultural products and pest control requires use of different pesticides in the area. Information on industrial and agricultural pollution has not been clearly identified in Zambia and little attention has been paid to pollution control and possible impact of metals pesticides and other persistent compounds in the environment. The objective of this study was to introduce and to evaluate a few methodologies based on in situ bioassays for environmental assessment to promote sustainable and environmentally sound water resource management of the Kafue River. The results show that caged threespot tilapia exposed downstream of industrial points sources rapidly bioaccumulate several trace elements i.e. Cd Co Cu Cr Ni. These elements also occurred in much higher concentrations in water samples downstream of the industrial area compared with a locality upstream. Furthermore the use of a semipermeable membrane device (SPMD) for passive absorption of lipophilic pollutants in the water showed relatively high concentration of several pesticides i.e. DDT with major metabolites PCB and dieldrin. The present study shows that only 2 weeks of in situ studies in waters contaminated by pollutants affects in situ exposed fish and that the correlation between water and tissue concentrations was relatively good. Both trace elements and persistent organic pollutants occurred in such high concentrations that they must be considered from ecotoxicological aspects and may affect aquatic animal health

            subject: 
                    @attributes: 
                        lang: eng
                        authority: uka.se
                    topic: 
                        Natural Sciences
                        Earth and Related Environmental Sciences
                        Geochemistry
                    @attributes: 
                        lang: swe
                        authority: uka.se
                    topic: 
                        Naturvetenskap
                        Geovetenskap och miljövetenskap
                        Geokemi
                    @attributes: 
                        lang: eng
                        authority: ltu
                    topic: Applied Geology
                    genre: Research subject
                    @attributes: 
                        lang: swe
                        authority: ltu
                    topic: Tillämpad geologi
                    genre: Research subject
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                languageTerm: eng
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                Published
                4
                Validerad; 2000; 20090701 (andbra)
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                        Norrgren
                        L.
                    role: 
                        roleTerm: aut
                    affiliation: Department of Pathology Faculty of Veterinary Medicine Swedish University of Agricultural Sciences  Uppsala
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                        Pettersson
                        Ulf T.
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                    affiliation: Luleå tekniska universitet
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                        Örn
                        S.
                    role: 
                        roleTerm: aut
                    affiliation: Department of Pathology Faculty of Veterinary Medicine Swedish University of Agricultural Sciences  Uppsala
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                        type: personal
                    namePart: 
                        Bergqvist
                        P-A
                    role: 
                        roleTerm: aut
                    affiliation: Institute of Environmental Chemistry Umeå University
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                dateIssued: 2000
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                    type: host
                titleInfo: 
                    title: Archives of Environmental Contamination and Toxicology
                identifier: 
                    0090-4341
                    1432-0703
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                                type: volume
                            number: 38
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