Polychlorinated biphenyl, polychlorinated dibenzo-p-dioxin and polychlorinated dibenzofuran residues in sediments and fish of the River Nile in the Cairo region

El-Kady, Ahmed A.; Abdel-Wahhab, Mosaad A.; Henkelmann, Bernhard; Belal, M. H.; Morsi, Mahmoud; Galal, Samy Mohamed; Schramm, Karl‐Werner

doi:10.1016/j.chemosphere.2007.03.066

Cited by 63 publications

(16 citation statements)

References 20 publications

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“…They were 3-fold higher than those reported in sediments from the Napoleon Gulf and Thurston Bay of Lake Victoria (Ssebugere et al, 2013b;Ssebugere et al, 2014). The PCB concentrations in the present study were comparable to data from other fresh water bodies in Africa: the Nile River in Egypt (El-Kady et al, 2007), Ghar El Melh lagoon in Tunisia (Ameur et al, 2011), Pangani River basin in Tanzania (Hellar-Kihampa et al, 2013) and Congo River basin in the Democratic Republic of Congo (Verhaert et al, 2013). The results were also in the range of data found in sediments from tropical areas in Asia: the Mekong River delta in Vietnam (Carvalho et al, 2008) and riverine and coastal waters of Surabaya in Indonesia (Ilyas et al, 2011).…”

Section: Statistical Data Analysissupporting

confidence: 63%

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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Section: Statistical Data Analysissupporting

confidence: 63%

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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“…The TEQs obtained in the present study were about one order of magnitude higher than those obtained in tilapia from the Nile River, Egypt (El-Kady et al, 2007) and in the same range in whitefish from the Elbe River, Germany (Stachel et al, 2007). However, the TEQs were found to be greater in some other species of fish (Domingo and Bocio, 2007).…”

Section: Discussioncontrasting

confidence: 46%

“…Similarly, PCB 118 was found to be the most abundant congener in fish samples from the French Frigate Shoals (Miao et al, 2000). Moreover, this congener contributed to more than 40% of the total of the 12 WHO-PCBs in tilapia in the Nile River, Egypt (El-Kady et al, 2007). In addition, the contribution of PCB 118 to TEQs was also greatest among the congeners in the study.…”

Section: Discussionmentioning

confidence: 81%

Detection and quantitative analysis of polychlorinated biphenyls in tilapia from Hawaiian waters

et al. 2008

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“…The sum (Σ) PCDD/Fs at the different study sites varied widely with mean values ranging from 68.8 to 479 pg g −1 dw. The levels were in the same range with data from the Napoleon Gulf and Thurston Bay of Lake Victoria (Ssebugere et al, 2013b) and other fresh water bodies in Africa like the Nile River in Egypt (El-Kady et al, 2007), Vaal River in South Africa (Nieuwoudt et al, 2009) and Lake Awassa in Ethiopia (Urbaniak and Zalewski, 2011) (Table 2). The levels were low to moderate compared to the data reported in sediments from industrialized areas in the United States of America (Kannan et al, 2008;Loganathan et al, 2008;Shen et al, 2009;Yunuén et al, 2011) and Europe (Nunes et al, 2011;Vives et al, 2007).…”

Section: Concentrations Of Pcdd/fs In the Sedimentssupporting

confidence: 78%

Polychlorinated dibenzo-p-dioxins, polychlorinated dibenzofurans and polybrominated diphenyl ethers 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 PCDD/Fs and PBDEs were found at wastewater discharge points.• PCDD/F and PBDE concentrations were low to moderate compared to data in literature.• The concentration difference between fish species was attributed to feeding habits.• The fish were fit for human consumption with regard to PCDD/Fs and PBDEs. a b s t r a c t a r t i c l e i n f o Polychlorinated dibenzo-p-dioxins/furans (PCDD/Fs) and polybrominated diphenyl ethers (PBDEs) were analyzed in sediments and fish from the Murchison Bay of Lake Victoria by high resolution gas chromatography/ high resolution mass spectrometry (HRGC/HRMS). Average concentrations of total (Σ) PCDD/Fs and ΣPBDEs in sediments ranged from 68.8 to 479 pg g −1 dry weight (dw) and 60.8 to 179 pg g −1 dw, respectively. Contamination levels of sedimentary PCDD/Fs and PBDEs were low to moderate compared to other urbanized regions worldwide. The concentrations in different fish species (Nile perch; Lates niloticus and Nile tilapia; Oreochromis niloticus) were 5.32 to 49.0 pg g −1 wet weight (ww) for PCDD/Fs and 59.3 to 495 pg g −1 ww for PBDEs. Higher concentrations of the pollutants were found in L. niloticus than O. niloticus, which could be attributed to species differences in feeding habits and lifestyles. World Health Organization-toxic equivalents (WHO 2005 -TEQs) for PCDD/Fs ranged from 0.08 to 0.33 pg TEQ g −1 dw and 0.001-0.14 pg TEQ g −1 ww in sediments and fish, respectively. The TEQ values were low compared to the data for fresh water fish reported in literature and within a permissible level of 3.5 pg g −1 ww recommended by the European Commission. Based on the Commission set value and minimum risk level criteria formulated by the Agency for Toxic Substances and Disease Registry, the fish from the Murchison Bay was fit for human consumption.

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Polychlorinated biphenyl, polychlorinated dibenzo-p-dioxin and polychlorinated dibenzofuran residues in sediments and fish of the River Nile in the Cairo region

Cited by 63 publications

References 20 publications

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

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

Detection and quantitative analysis of polychlorinated biphenyls in tilapia from Hawaiian waters

Polychlorinated dibenzo-p-dioxins, polychlorinated dibenzofurans and polybrominated diphenyl ethers in sediments and fish species from the Murchison Bay of Lake Victoria, Uganda

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