Persistent organochlorine pesticide residues in fish, sediments and water from Lake Bosomtwi, Ghana

Darko, Godfred; Akoto, Osei; Oppong, Caleb

doi:10.1016/j.chemosphere.2008.02.052

Cited by 169 publications

(90 citation statements)

References 15 publications

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“…The HCH levels were lower than those reported in fish samples from Tana and Sabaki Rivers in Kenya (Lalah et al, 2003) and the Lagos Lagoon in Nigeria (Adeyemi et al, 2008). In Ghana, Darko et al (2008) reported HCH residues ranging from 700 to 1360 pg g −1 lw in fish (Tilapia zilli) from Lake…”

Section: Levels Of Hexachlorocyclohexanes In Sediments and Fishmentioning

confidence: 58%

Polychlorinated biphenyls and hexachlorocyclohexanes in sediments and fish species from the Napoleon Gulf of Lake Victoria, Uganda

Ssebugere

Sillanpää

Kiremire

et al. 2014

Science of The Total Environment

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• High concentrations of PCBs were found at locations near Jinja Municipality.• The PCB and HCH levels were low to moderate compared to other locations worldwide.• The fish from the Napoleon Gulf was fit for consumption in regard to PCBs and HCHs.• The ratios of α-/γ-HCH were low suggesting past input of lindane. a b s t r a c t a r t i c l e i n f o Polychlorinated biphenyls (PCBs) and hexachlorocyclohexanes (HCHs) were analyzed in surface sediments (b30 cm depth) and two fish species: Nile perch (Lates niloticus) and Nile tilapia (Oreochromis niloticus). The samples were collected from the Napoleon Gulf on the northern shore of Lake Victoria. The analysis was done using a gas chromatograph (GC) coupled to a high resolution mass spectrometer for PCBs and a GC equipped with an electron capture detector for HCHs. Total (Σ) PCBs in the muscles of fish varied widely with mean values ranging from 41 to 670 pg g −1 lipid weight (lw). The PCB levels in L. niloticus were significantly greater than those in O. niloticus. The large variability observed in the data was attributed to differences in feeding habits and trophic levels. While O. niloticus is a filter-eating fish species feeding mainly on phytoplankton and zooplankton, L. niloticus have predatory feeding behaviors and prefer a diet of live fish and, therefore, are more prone to bioaccumulate contaminants. The mean PCB concentrations in the sediments varied from 362 to 848 pg g −1 dry weight. Variations in PCB levels were observed from one study site to another, this was attributed to the nature and particle size of the sediments. HCH isomers were detected in fish at mean concentrations of up to 45,900 pg g −1 lw. The PCB and HCH concentrations were lower than those from previous studies elsewhere in literature and were below the maximum residue limits set by the European Commission and FAO/WHO Codex Alimentarius Commission, implying that the fish was fit for human consumption.

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Section: Levels Of Hexachlorocyclohexanes In Sediments and Fishmentioning

confidence: 58%

Polychlorinated biphenyls and hexachlorocyclohexanes in sediments and fish species from the Napoleon Gulf of Lake Victoria, Uganda

Ssebugere

Sillanpää

Kiremire

et al. 2014

Science of The Total Environment

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“…To our knowledge whereas PCBs have been reported in fish and sediments from the Napoleon Gulf and Thurston Bay of Lake Victoria (Ssebugere et al, 2013a, b;Ssebugere et al, 2014) and from other water bodies in the world (Manirakiza et al, 2002;Adu-Kumi et al, 2010;Darko et al, 2008;Helm et al, 2008;Eqani et al, 2013;Verhaert et al, 2013), literature shows no work about these pollutants in the Murchison Bay. The Bay is a major hotspot for discharge of industrial outflow, urban runoff and municipal effluents from Kampala, Uganda's capital city (Banadda et al, 2009).…”

Section: Introductionmentioning

confidence: 96%

Polychlorinated biphenyls in sediments and fish species from the Murchison Bay of Lake Victoria, Uganda

Ssebugere

Sillanpää

Wang

et al. 2014

Science of The Total Environment

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• High concentrations of PCBs were found at sites near wastewater discharges.• The PCB concentrations were low to moderate compared to other locations worldwide.• Based on the European Commission set TEQ, the fish were fit for human consumption. Polychlorinated biphenyls (PCBs) were determined in sediments and two fish species collected from the Murchison Bay in Lake Victoria, using high resolution gas chromatography coupled to a high resolution mass spectrometer. Total PCB concentrations (Σ 18 PCBs) varied widely with mean values ranging from 777 to 4325 pg g −1 dry weight (dw) for sediments and 80 to 779 pg g −1 wet weight (ww) for fish. The PCB levels in the sediments were significantly higher at the station closest to Nakivubo channel, presumably due to effluents discharged by the channel, which may contain domestically produced commercial PCB mixtures. For fish, the concentrations in Nile perch (Lates niloticus) were significantly greater than those in Nile tilapia (Oreochromis niloticus) at all study stations, possibly due to dietary differences among species. World Health Organization-toxic equivalents (WHO 2005 -TEQs) for the dioxin-like PCBs were 0.04-0.64 pg g −1 dw and 0.01-0.39 pg g −1 ww for sediments and fish, respectively. The non-ortho PCBs exhibited the highest contribution to the Σ 12 TEQs (N75%) compared to the mono-ortho PCBs in both fish species. The TEQs in the present study were lower than many reported worldwide in literature for fish and were within the permissible level recommended by the European Commission, implying that the fish did not pose health hazards related to PCBs to the consumers. a b s t r a c t a r t i c l e i n f o

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“…As far as the ammonia of surface water is concerned, there are three main sources: Firstly, biodegradable waste and the animals and plants residues; Secondly, local herders and tourists built up on daily life garbage [70,71] ; Thirdly, various agricultural waste production and increasing industrial activities in Plateau pastoral area [72] . Additionally, excessive use of fertilizers, manure and pesticides may be harmful although they are used for better production and protection of crops [72,73] . However, to ensure a better quality of surface water, attention need to be paid to the following recommendations.…”

Section: Water Quality Assessment By Fuzzy Membershipmentioning

confidence: 99%

Hydrochemical Characteristics and Water Quality Assessment of Surface Water at Xiahe County in Tibetan Plateau Pastoral of China

Zhang

Wang

Yousaf

et al. 2016

Preprint

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Water quality assessment in pastoral of Tibetan Plateau, which is water sources for about 40% of world's population and the runoff-yield area of Yellow rivers, is very important. In this paper, Xiahe county which belongs to Tibetan Plateau pastoral was investigated. Six parameters(via, chloride, COD, ammonia nitrogen, nitrate, fluoride, sulfate) were selected to assess the water quality and health degree by using fuzzy comprehensive evaluation methods. The hydrochemical type in surface water was of HCO3 --Mg 2+ -C a2+ type. The cations and anions in surface water were mainly from weathering and dissolution of carbonate rock. Results showed that the water quality in all 69 sampling sites was all of class Ⅰ. The integrated health degree reached more than 0.85 and the health rate were 100%. Although ammonia nitrogen was regarded as the main contamination factor, but it had a little effect on the entire body of water. Overall, the surface water qualities of most samples in Xiahe County was good condition.

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Persistent organochlorine pesticide residues in fish, sediments and water from Lake Bosomtwi, Ghana

Cited by 169 publications

References 15 publications

Polychlorinated biphenyls and hexachlorocyclohexanes in sediments and fish species from the Napoleon Gulf of Lake Victoria, Uganda

Polychlorinated biphenyls and hexachlorocyclohexanes in sediments and fish species from the Napoleon Gulf of Lake Victoria, Uganda

Polychlorinated biphenyls in sediments and fish species from the Murchison Bay of Lake Victoria, Uganda

Hydrochemical Characteristics and Water Quality Assessment of Surface Water at Xiahe County in Tibetan Plateau Pastoral of China

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