Distribution of polycyclic aromatic hydrocarbons (PAHs) in the bottom sediments of a dam reservoir, their interaction with organic matter and risk to benthic fauna

Baran, Agnieszka; Klimkowicz‐Pawlas, Agnieszka; Ukalska‐Jaruga, Aleksandra; Mierzwa–Hersztek, Monika; Gondek, Krzysztof; Szara-Bąk, Magdalena; Tarnawski, Marek; Spałek, Iwona

doi:10.1007/s11368-021-02968-1

Cited by 26 publications

(4 citation statements)

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“…Although the values for individual PAHs immediately following the fire were elevated, they were still significantly lower than those in other wildfire studies (Table 3) and studies from industrial and urbanised locations across the globe generally, and across Canada specifically (see Marvin et al 2021). Baran et al (2021) focused on a range of organic matter fractions and found that there was a positive correlation between total organic carbon (TOC) and ƩPAHs in bottom sediments in the Rożnów reservoir in Poland, and for dissolved organic carbon and fulvic acid carbon there was a significant relationship between ƩPAHs and 2-3-ring compounds. In the context of the work presented here, this finding is of particular note because of the dominance of 2-3 ring PAHs in both soils and sediments.…”

Section: Discussioncontrasting

confidence: 58%

Post-wildfire contamination of soils and sediments by polycyclic aromatic hydrocarbons in north-central British Columbia, Canada

Kieta

Owens

Petticrew

2023

Int. J. Wildland Fire

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Background The Nechako River Basin (NRB) is a large, regulated basin in north-central British Columbia, Canada that has been impacted by numerous landscape disturbances, including a severe wildfire in 2018. Aims The aims of this study were to quantify the post-wildfire temporal and spatial extent of contamination by polycyclic aromatic hydrocarbons (PAHs) of both soils and riverine sediments, and to identify the primary sources of PAHs in the watershed. Methods Soil samples were collected at burned and unburned sites in 2018 and at the burned sites in 2020 and 2021. Sediment samples were collected at three tributaries impacted by wildfire and three Nechako River mainstem (i.e. main channel) sites from 2018 to 2021. Samples were analysed for parent PAHs. Key results PAH concentrations decreased in soil samples from 2018 to 2021 but are not below the concentrations found in unburned samples. Tributary sediment samples showed higher concentrations immediately post-fire relative to the mainstem Nechako River, but in the years since, that trend has reversed. Conclusions PAHs persist in terrestrial and aquatic environments for years following wildfire, but at concentrations below various quality guidelines. PAHs were primarily derived from the wildfires, with some mixed sources at the downstream sites. Implications Wildfires are an important source of environmental contamination of terrestrial and aquatic environments.

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Section: Discussioncontrasting

confidence: 58%

Post-wildfire contamination of soils and sediments by polycyclic aromatic hydrocarbons in north-central British Columbia, Canada

Kieta

Owens

Petticrew

2023

Int. J. Wildland Fire

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“…According to reports, fish are the most susceptible aquatic organisms for detecting contaminants and pollution in an aquatic environment; hence, they have been used for environmental monitoring of contaminants in rivers ( Cui et al, 2016 ; Olayinka et al, 2019 ; Pang et al, 2021 ; Ciucure et al, 2023 ). Arising from their capacity to bio-accumulate in biota, persist in the environment, having mutagenic and carcinogenic potencies in man, the US EPA has banned some PAHs, hence the interest of all stakeholders especially the researchers for many years ( US EPA, 1993 ; US EPA, 2001 ; Orecchio and Papuzza, 2009 ; Lawal, 2017 ; Gao et al, 2018 ; Baran et al, 2021 ; Cui et al, 2023 ). Several researchers have analyzed, characterized concentrations, and carried out health implications of POPs in which PAHs a member of that group in the past decades across the globe ( Lau et al, 2010 ; Yu et al, 2014 ; Li et al, 2015 ; Wang et al, 2017 ; Gao et al, 2018 ; Ekere et al, 2019 ; Usese et al, 2021 ; Cui et al, 2023 ).…”

Section: Introductionmentioning

confidence: 99%

Source, distribution, and risk assessment of polycyclic aromatic hydrocarbons in sediment and fish samples from River Owan, Edo State, Nigeria

Akinnusotu,

Ukpebor,

Okieimen

2023

Front. Toxicol.

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Polycyclic aromatic hydrocarbons (PAHs) are persistent environmental contaminants that present several environmental risks including human health. The 16 priority PAHs including its 1-methylnaphthalene, and 2-methylnaphthalene were determined in sediment and fish samples (Clarias anguillaris and Oreochromis niloticus) of River Owan, Edo State, Nigeria using gas chromatography (GC) equipped with flame ionization detector (FID) and other standard laboratory protocols. The isomeric ratio was used for source diagnosis, sediment quality guidelines, and risk models of incremental lifetime cancer were used for risk assessment. 1-methylnaphthalene and 2-methylnaphthalene were most predominant in all sediment samples analysed. The ∑LMW PAHs ranged between 0.093—0.250 μg/kg; ∑HMW PAHs were 0.107—0.579 μg/kg. The sediment samples range for ∑PAHs was 0.280–0.810 μg/kg with concentration order of increase: SE5>SE4>SE3>SE6>SE1>SE2>SE7 for the seven sampling locations. The ∑PAHs for Oreochromis niloticus was 0.190 μg/kg, which is higher than the value of Clarias anguillaris 0.080 μg/kg, and these values were greatly lesser when compared to the European Commission limit of 12.00 μg/kg. The diagnostic ratio indicates that the sources are more pyrogenic than petrogenic, revealing combustion from grass, wood, and bush burning. Sediment quality assessment showed that the ∑PAHs were lower than the regulatory values of sediment quality guidelines (SQG) assessment suggesting no ecotoxicological effects on the benthic organisms in this area at present. The Incremental Life Cancer Risk results were in the range of 9.15 × 10−12—1.46 × 10−6 for children, and 7.78 × 10−12—1.76 × 10−6 for adults considering the three routes of exposure. The incremental life cancer risk assessment showed a negligible risk.

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“…[6]. PAHs exhibit semi-volatility, long-term persistence and bioaccumulation of persistent organic pollutants and widely occur in a variety of environmental media [7][8]. Research has indicated that the environmental behavior and bioavailability of PAHs are strongly affected by BC [9].…”

Section: Introductionmentioning

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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Distribution of polycyclic aromatic hydrocarbons (PAHs) in the bottom sediments of a dam reservoir, their interaction with organic matter and risk to benthic fauna

Cited by 26 publications

References 50 publications

Post-wildfire contamination of soils and sediments by polycyclic aromatic hydrocarbons in north-central British Columbia, Canada

Post-wildfire contamination of soils and sediments by polycyclic aromatic hydrocarbons in north-central British Columbia, Canada

Source, distribution, and risk assessment of polycyclic aromatic hydrocarbons in sediment and fish samples from River Owan, Edo State, Nigeria

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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