Polycyclic aromatic hydrocarbons in selected rivers in southwestern Nigeria: Seasonal distribution, source apportionment and potential risk assessment

Apata, Abiodun Oyewumi; Ololade, Isaac Ayodele; Oladoja, N.A.; Alabi, Bosede Adenike; Ololade, Oluwaranti Olubunmi

doi:10.1016/j.rsma.2022.102318

Cited by 6 publications

(4 citation statements)

References 71 publications

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“…Due to differences in the concentrations of isomers in the pollutants from different sources, the molecular diagnostic ratio can be used to qualitatively indicate the source of PAHs (Miao et al 2023;Na et al 2023;Apata et al 2022). Currently, commonly used PAHs molecular diagnostic ratios include Ant/(Ant+Phe), FlA/(FlA+Pyr), and BaA/(BaA+Chr).…”

Section: Methods For Pah Source Analysismentioning

confidence: 99%

The sources, diffusion, and health risks of polycyclic aromatic hydrocarbons in water and sediment of a typical underground river in South China

Lu,

Chen,

Zou

et al. 2024

Environ Earth Sci

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Underground rivers serve as the primary source of drinking water in the karst area in South China and support their development. However, the aquifer structure of the karst region makes it easy for PAHs (polycyclic aromatic hydrocarbons) to enter underground rivers, which causes heavy pollution and affects water quality and safety. This study chose the Qingshuiquan underground river in Nanning City as a representative to reveal the sources, diffusion, and health risks of PAHs in water and sediment of underground rivers. The results showed that the ∑16PAHs concentration ranges in groundwater and sediment were 294.44-489.91 ng/L and 380.13-1141.97 ng/g respectively. From the upstream to the downstream, PAH concentrations increased, and the proportion of PAHs with lower rings decreased. PAHs came from three sources: the high-temperature combustion of grass, wood, and coal in the upper reaches, petroleum in the middle reaches, and coal and oil combustion in the lower reaches. As ring numbers of PAHs and organic carbon content increased, PAHs were more likely to disperse into sediment. Sediment turned from source to sink, and groundwater from sink to source. PAHs in groundwater posed only carcinogenic health risks and zero non-carcinogenic health risks, with adults suffering from higher risks than children, and dermal contacts riskier than ingestion. The levels of carcinogenic health risks differed spatially, with risks in the downstream significantly higher than those in the midstream and upstream. PAH monomers such as BaP and DaA require close attention. These results can provide scientific evidence for POPs (persistent organic pollutants) prevention and control in the karst water environment.

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Section: Methods For Pah Source Analysismentioning

confidence: 99%

The sources, diffusion, and health risks of polycyclic aromatic hydrocarbons in water and sediment of a typical underground river in South China

Lu,

Chen,

Zou

et al. 2024

Environ Earth Sci

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“…The PAH levels detected in our study were higher than those registered in surface waters and sediments collected from Tisza and its tributaries, ranging from 1.22 to 260.26 ng/L in water samples and 4.94 to 10.62 µg/kg in sediment [57] or in the Olt River, with total PAH concentrations in water ranging from 1.3 to 46.2 ng/L and sediment content from 1.78 to 614.04 µg/kg [58]. PAHs are widely distributed in the environment [59,60]. The presence of the identified aromatic hydrocarbons can be due to the spillage of petroleum products or the discharge in the Arieş River of waste waters resulting from economic activities containing these compounds.…”

Section: Monocyclic and Polycyclic Aromatic Hydrocarbonsmentioning

confidence: 99%

Impact of Arieş River Contaminants on Algae and Plants

Halmagyi,

Butiuc-Keul,

Keul

et al. 2023

Toxics

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The Arieş River (Western Romania) represents one of the most important affluents of the Mureş River, with great significance in the Mureş Tisza basin. The environmental quality of the Arieş basin is significantly affected by both historic mining activities and contemporary impacts. Thus, an evaluation of the effects of the main contaminants found in water (organochlorine pesticides—OCPs, monocyclic aromatic hydrocarbons—MAHs, polycyclic aromatic hydrocarbons—PAHs, and metals) on cyanobacteria and plants was performed. Among OCPs, hexachlorocyclohexane isomers, dichlorodiphenyltrichloroethane, and derivatives were detected in plants while admissible concentrations were detected in water. Among MAHs, high levels of benzene were detected both in water and in plants. The levels of PAHs exceeded the allowable values in all samples. Increased concentrations of metals in water were found only at Baia de Arieş, but in plants, all metal concentrations were high. The pH, nitrates, nitrites, and phosphates, as well as metals, pesticides, and aromatic hydrocarbons, influenced the physiological characteristics of algae, test plants, and aquatic plants exposed to various compounds dissolved in water. Considering that the Arieş River basin is the site of intense past mining activities, these data provide information about the impact on water quality as a consequence of pollution events.

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“…PC1 contributes 42.6% of the total variance, which is composed of Acy, Chr, HMW-PAHs and Zn. It was suggested that HMW-PAHs (Chr, BbF and BkF) were used to indicate motor vehicle emissions [56]. Thus, PC1 could be defined as emissions from vehicles because it aggregated mainly PAHs of high molecular weight, except for Acy.…”

Section: Sources Of Bc Pahs and Hmsmentioning

confidence: 99%

Source Analysis of Black Carbon with Polycyclic Aromatic Hydrocarbons and Heavy Metals in Sediments and Soils and its Heath Risk Assessment from Chan & Ba River Drainage Basin of China

Tan¹,

Tan²,

Gu³

et al. 2022

Pol. J. Environ. Stud.

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Potential risks to people's health should receive much more attention with an increasing compound pollution in urban river ecological landscape. In this paper, the concentrations of 8 heavy metals (HMs, V, Cr, Mn, Co, Ni, Zn, As and Pb), black carbon (BC, char and soot) and polycyclic aromatic hydrocarbons (PAHs) were determined in soils and river sediments collected from 72 sampling sites along the Chan-Ba River, and also were evaluated, concerning source analysis and health risks. The results indicate that the concentrations of BC and PAHs varied seasonally, and the concentration of HMs showed little seasonal variation. The concentration of BC was higher in winter than in summer, while that of PAHs was higher in summer than in winter. These pollutants were spatial heterogeneity. The concentrations of these pollutants in the middle reaches of the Ba River were much higher than those in the upper and lower reaches. These changes are attributed to the spatial-temporal distribution of local pollutant emissions and the characteristics of regional pollutant transportation and deposition. Source and cluster analysis revealed that BC, HMs and PAHs were pyrogenic (including coal and biomass combustions, vehicular emissions). The evaluation of health risk of PAHs and HMs revealed that the cancer risk for adults and children was higher than the 10 -6 and lower than 10 -4 implying low to moderate risk, and it is noted that there are higher potential risks of Phe and Flu at the middle reaches in summer and As at the lower reaches in Autumn. Therefore, pollution prevention and monitoring,

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Polycyclic aromatic hydrocarbons in selected rivers in southwestern Nigeria: Seasonal distribution, source apportionment and potential risk assessment

Cited by 6 publications

References 71 publications

The sources, diffusion, and health risks of polycyclic aromatic hydrocarbons in water and sediment of a typical underground river in South China

The sources, diffusion, and health risks of polycyclic aromatic hydrocarbons in water and sediment of a typical underground river in South China

Impact of Arieş River Contaminants on Algae and Plants

Source Analysis of Black Carbon with Polycyclic Aromatic Hydrocarbons and Heavy Metals in Sediments and Soils and its Heath Risk Assessment from Chan & Ba River Drainage Basin of China

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