Concentrations and Toxic Equivalency of Polycyclic Aromatic Hydrocarbons (PAHs) and Polychlorinated Biphenyl (PCB) Congeners in Groundwater Around Waste Dumpsites in South-West Nigeria

Ololade, Isaac Ayodele; Arogunrerin, Ibrahim Akilu; Oladoja, N.A.; Ololade, Oluwaranti Olubunmi; Alabi, Adenike Bosede

doi:10.1007/s00244-020-00790-3

Cited by 20 publications

(6 citation statements)

References 26 publications

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“…The accumulation of PAHs in sediments and soils is a major cause of groundwater pollution, and the vulnerability of groundwater to contamination poses major public health issues since the contaminants can gain access to the food chain. [85][86][87][88] Thus, the high content of PAHs in KT and WL soils reveals that these residents are at a higher risk of contamination as compared to other areas, which demands immediate public health attention and proper sensitization of waste disposal and management practices. The mobility of PAHs, like other contaminants, is highly dependent on their physicochemical properties and environmental factors such as temperature and humidity.…”

Section: Toxicity Evaluation Of Pahs In the Soilmentioning

confidence: 99%

Distribution, sources, and ecological risk assessment of polycyclic aromatic hydrocarbons in agricultural and dumpsite soils in Sierra Leone

Janneh

Zhang

et al. 2023

RSC Adv.

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Section: Toxicity Evaluation Of Pahs In the Soilmentioning

confidence: 99%

Distribution, sources, and ecological risk assessment of polycyclic aromatic hydrocarbons in agricultural and dumpsite soils in Sierra Leone

Janneh

Zhang

et al. 2023

RSC Adv.

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“…Olukunle et al reported PBDE concentrations for the ∑ 7 BDE for sediment (0.8-8.4 ng/g) and leachate (0.13-3.7 ng/L) in samples collected from landfills in Gauteng, South Africa [48] . BDE-209 (mean = 1.6 ng/g) was reported as the dominant congener in the majority of sediment samples.…”

Section: Concentrations Reported In Sediment and Leachate From Landfi...mentioning

confidence: 99%

“…Sibiya et al and Olukunle et al reported high contamination of PBDEs in landfill sediment samples. The elevated concentrations were attributed to landfill liners preventing percolation into groundwater systems [42,48] . Sibiya et al reported comparatively lower BDE concentrations in older landfills (28 years old), with a suggestion that older landfills contain microorganisms that support the breakdown of contaminants and therefore limit concentrations [43] .…”

Section: Factors Influencing Releases Of Contaminants From African Wa...mentioning

confidence: 99%

Waste streams as current sources of persistent organic pollutants and organophosphate esters in Africa - a critical review

Akinrinade¹,

Stubbings²

2022

J Environ Expo Assess

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Per- and polyfluoroalkyl substances, chlorinated paraffins, brominated flame retardants, polychlorinated biphenyls and mirex are regulated under the United Nations Environment Programme’s (UNEP’s) Stockholm Convention on Persistent Organic Pollutants (POPs) intended for the eradication of hazardous contaminants in the environment. There is also a major concern for organophosphate esters and specific alternative or novel brominated flame retardants. To date, no evidence exists that major producers of these chemicals occur on the African continent. They are understood to find their way into African environments through the import of commercial products, in particular products with second-hand value and short lifespans, which may enter waste streams in a relatively shorter period. To further understand the current levels of these selected contaminants in African waste streams, existing documents capturing various African waste stream compartments for the above outlined targeted contaminants were gathered from an exhaustive literature review. Key factors influencing the transfer of contaminants from waste or elevated concentrations of contaminants in African waste streams are associated with the nature and/or sources of contaminants, volume of contaminants or waste in relation to the capacity of treatment plants/landfills, condition or age of treatment plants/landfill geomembrane liner, model adopted for contaminants removal and treatment procedures for collected sludges or leachates. Evidence from the selected studies indicates substantial POP contamination in African landfills and dumpsites, wastewater effluents/sludge and human/biological samples around dumpsites and landfills. Unfortunately, the continent has inadequate infrastructural capacity to adequately handle POP in the waste streams. This review provides recommendations and suggestions for future studies.

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“…Naphthalene is one of the most volatile PAHs, leading to uncertainties concerning its toxicity in aquatic organisms [41], as it is easily lost by volatilization and sorption processes. However, most PAHs are relatively non-volatile and poorly soluble in the aquatic environment, leading to high chances of incorporation into bottom sediments [42].…”

Section: Volatilitymentioning

confidence: 99%

The Role of the Ecotoxicology Applied to Seafood as a Tool for Human Health Risk Assessments Concerning Polycyclic Aromatic Hydrocarbons

Pinho

Rodrigues

Guimarães

et al. 2022

IJERPH

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Background: Polycyclic aromatic hydrocarbons (PAHs) are persistent pollutants routinely detected in aquatic ecosystems. It is, therefore, necessary to assess the link between deleterious marine biota PAH effects, especially in commercialized and consumed animals, environmental health status, and potential human health risks originating from the consumption of contaminated seafood products. Thus, this review seeks to verify the relationships of ecotoxicological studies in determining effect and safety concentrations on animals routinely consumed by humans. Methods: A total of 52 published studies between 2011 and 2021, indexed in three databases, were selected following the PICO methodology, and information on test animals, evaluated PAH, and endpoints were extracted. Results: Benzo(a)pyrene and phenanthrene were the most investigated PAHs in terms of biomarkers and test organisms, and mussels were the most evaluated bioindicator species, with an emphasis on reproductive responses. Furthermore, despite the apparent correlation between environmental PAH dynamics and effects on aquatic biota and human health, few assessments have been performed in a multidisciplinary manner to evaluate these three variables together. Conclusions: The links between human and environmental sciences must be strengthened to enable complete and realistic toxicity assessments as despite the application of seafood assessments, especially to mussels, in bioassays, the connection between toxicological animal responses and risks associated with their consumption is still understudied.

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Concentrations and Toxic Equivalency of Polycyclic Aromatic Hydrocarbons (PAHs) and Polychlorinated Biphenyl (PCB) Congeners in Groundwater Around Waste Dumpsites in South-West Nigeria

Cited by 20 publications

References 26 publications

Distribution, sources, and ecological risk assessment of polycyclic aromatic hydrocarbons in agricultural and dumpsite soils in Sierra Leone

Distribution, sources, and ecological risk assessment of polycyclic aromatic hydrocarbons in agricultural and dumpsite soils in Sierra Leone

Waste streams as current sources of persistent organic pollutants and organophosphate esters in Africa - a critical review

The Role of the Ecotoxicology Applied to Seafood as a Tool for Human Health Risk Assessments Concerning Polycyclic Aromatic Hydrocarbons

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