Occurrence and levels of persistent organic pollutants (POPs) in wild and farmed tilapia (Oreochromis niloticus) from Lake Kariba, Zambia: possible impact on fish health

Simukoko, Chalumba Kachusi; Mwakalapa, Eliezer Brown; Muzandu, Kaampwe; Mutoloki, Stephen; Evensen, Øystein; Ræder, Erik Magnus; Müller, Mette Helen Bjørge; Polder, Anuschka; Lycke, Jan Ludvig

doi:10.21203/rs.3.rs-1272893/v1

Cited by 3 publications

(1 citation statement)

References 41 publications

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“…Fish represent an essential ecological component of aquatic ecosystems and can accumulate to many different lipophilic contaminants [ 2 , 3 , 4 ]. Although several monitoring studies have shown that halogenated compounds, such as PCBs and PBDEs, have been decreasing in marine ecosystems over the past 10 years [ 5 ], these contaminants are still detected in fish from various FAO areas [ 6 , 7 ]. Exposure to these pollutants can occur through the skin and through respiration, but mainly, about 90% occurs through the diet, in which food of animal origin, particularly fish, plays a major role [ 8 ].…”

Section: Introductionmentioning

confidence: 99%

Organohalogenated Substances and Polycyclic Aromatic Hydrocarbons in Fish from Mediterranean Sea and North Italian Lakes: Related Risk for the Italian Consumers

Mosconi

Cesare

Arioli

et al. 2022

Foods

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The primary source of persistent organic pollutant (POP) exposure is food, especially fish. European seabass (Dicentrarchus labrax) and gilthead seabream (Sparus aurata) are among the most eaten sea fish in Italy. Fish from lakes in Northern Italy, such as agone (Alosa agone), represent niche consumption for most people, but possibly constitute a much larger percentage of overall consumption volume for local residents. This study dealt with the presence of POPs in the above-mentioned fish species via GC-MS/MS analysis. None of the analytes for which maximum limits are in place showed concentrations above those limits. Moreover, none of the substances without maximum limits exceeded the provisional tolerable daily intake (PTDI) when given, nor did they exceed the more general values considered safe, even for 99th percentile consumers.

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Section: Introductionmentioning

confidence: 99%

Organohalogenated Substances and Polycyclic Aromatic Hydrocarbons in Fish from Mediterranean Sea and North Italian Lakes: Related Risk for the Italian Consumers

Mosconi

Cesare

Arioli

et al. 2022

Foods

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Poly- and per-fluoroalkyl substances (PFAS) in the African environments: progress, challenges, and future perspectives

Chokwe,

Themba,

Mahlambi

et al. 2024

Environ Sci Pollut Res

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A Comprehensive Review of the Occurrence, Distribution, Characteristics and Fate of Per- and Polyfluoroalkyl Substances in the African Continent

Umejuru,

Street,

Edokpayi

2024

Chemistry Africa

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Per- and polyfluoroalkyl substances (PFAS) represent synthetic organic compounds extensively utilized in a variety of domestic and industrial products due to their distinctive characteristics. Designated as persistent organic pollutants (POPs) by the Stockholm Convention, PFAS are recognized for their long-lasting presence, widespread prevalence, and adverse impacts on both the environment and human health. Recently, the United States Environmental Protection Agency (US EPA) revised the guideline limits for perfluorooctane sulfonic acid (PFOS) and perfluorooctanoic acid (PFOA) in drinking water, setting them at 0.02 and 0.004 ng/L, respectively. Despite the global emphasis on the necessity for monitoring and treating PFAS in environmental media, there is a scarcity of information on PFAS studies in Africa. This gap may be attributed to a lack of modern laboratory facilities, weak governance, and the enforcement of environmental regulations. This study comprehensively reviews PFAS, focusing on key areas such as global guidelines and regulations, sources and distribution in the environmental matrix in Africa, characteristics, environmental fate, reported methods for sampling and analysis in Africa, and the role of government in the National Implementation Plan (NIP) on the continent. Additionally, the study offers recommendations and identifies knowledge gaps. In Africa, PFAS have been detected in various environmental compartments, including drinking water ranging from 0.03 to 200 ng/L, surface water ranging from 0.0254 to 788 ng/L, sediment ranging from 0.50 to 248.14 ng/g, wastewater ranging from 0.9 to 507 ± 257.6 ng/L, seafood ranging from 0.12 to 179.2 ng/g, sludge ranging from 0.01 to 0.098 ng/g, plants ranging from 0.160 to 29.33 ng/g, and indoor dust ranging from 1.3 to 69 ng/g. Notably, perfluorooctane sulfonic acid (PFOS) and perfluorooctanoic acid (PFOA) are prevalent in samples from various environmental matrices across Africa. Reported sources of PFAS in African countries include municipal waste, hospital waste from medical equipment, discharge from industries, and wastewater treatment plants. Urgent attention is required from decision-makers and researchers in Africa to address PFAS monitoring, regulation, and treatment within the continent. Graphical abstract

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Occurrence and levels of persistent organic pollutants (POPs) in wild and farmed tilapia (Oreochromis niloticus) from Lake Kariba, Zambia: possible impact on fish health

Cited by 3 publications

References 41 publications

Organohalogenated Substances and Polycyclic Aromatic Hydrocarbons in Fish from Mediterranean Sea and North Italian Lakes: Related Risk for the Italian Consumers

Organohalogenated Substances and Polycyclic Aromatic Hydrocarbons in Fish from Mediterranean Sea and North Italian Lakes: Related Risk for the Italian Consumers

Poly- and per-fluoroalkyl substances (PFAS) in the African environments: progress, challenges, and future perspectives

A Comprehensive Review of the Occurrence, Distribution, Characteristics and Fate of Per- and Polyfluoroalkyl Substances in the African Continent

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