Occurrence and distribution of polycyclic aromatic hydrocarbons in surface water of the Raba River, Hungary

Nagy, Andrea Szabó; Szabó, J.; Vass, István

doi:10.1080/10934529.2013.776455

Cited by 16 publications

(9 citation statements)

References 38 publications

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“…Among these processes, photodegradation is the primary transformation pathway for HOCs in the estuarine surface water that absorb in the UV-vis wavelength region. PAHs, which are widely distributed in the estuary areas, have been shown to be carcinogenic and mutagenic in past studies (Farmer et al 2003;Nagy et al 2013). Besides, it has been reported that the products of the photochemical degradation of PAHs can be more toxic than the original pollutants (Toyooka et al 2008;Teranishi et al 2010).…”

Section: Introductionmentioning

confidence: 99%

Photochemical degradation of PAHs in estuarine surface water: effects of DOM, salinity, and suspended particulate matter

Shang

Chen

Shen

et al. 2015

Environ Sci Pollut Res

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The photodegradation of several polycyclic aromatic hydrocarbons (PAHs) including phenanthrene, benzo(a)pyrene, and benzo(e)pyrene was studied under different estuarine conditions to elucidate the effects of dissolved organic matter (DOM), salinity, and suspended particles on PAH photodegradation in the estuarine surface water. Besides the competitive light absorption effect, DOM can accelerate the photodegradation of small PAHs such as phenanthrene by enhancing the formation of reactive intermediates and inhibit the photodegradation of large PAHs such as benzo[a]pyrene (BaP) and benzo[e]pyrene (BeP) by binding the PAH molecules. High salinity would accelerate the photodegradation of PAHs; however, the magnitude and direction of the salt effect are complicated in the presence of DOM due to the "salting-out" effect on the binding of PAHs with DOM. Suspended particulate matter in the estuary provides an alternative solid-phase photodegradation pathway for PAHs, which proceeds faster than the aqueous phase. Particulates apparently exert different effects on the photodegradation of phenanthrene (Phe) and BaP as a result of the combined effects of light absorption, particulate organic matter, PAH surface sorption, and concentration dilution in the presence of suspended particulate matter.

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Section: Introductionmentioning

confidence: 99%

Photochemical degradation of PAHs in estuarine surface water: effects of DOM, salinity, and suspended particulate matter

Shang

Chen

Shen

et al. 2015

Environ Sci Pollut Res

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“…The ∑PAHs concentrations in the water samples in all seasons (ranges from the lowest of 224.85 in summer to the highest of 365.87 ng/L in winter) are higher than those found in the Danube River and tributaries (67-96 ng/L) from the territory of Hungary [28,29], Danube River (16-133 ng/L) [30], Danube River measurements ( 15.9 to 53.2 ng/L) [32]. Contrarily, these concentrations are lower than those found in the Raba River (the largest Danube tributary in Hungary), with a range between 41-437 ng/L [27].…”

Section: Resultsmentioning

confidence: 89%

“…The nding revealed that total PAHs concentration ranged from 15.9 to 53.2 ng/L. The overall conclusion regarding the studies conducted for measuring the PAHs level in the Danube River within the framework frame of Hungarian borders is that most of these investigations were conducted in the upper part of the river, and with the latest sampling campaign in the period of 2014-2015 [30]. Other studies have reported PAHs level in the area of Budapest, however, with unclear conclusions due to missing information such as the PAHs ranges, sampling locations, and overlooking the sediments part, which is considered an important PAHs sink [31,32].…”

Section: Introductionmentioning

confidence: 94%

“…In another work, conducted in the upper part, the PAHs level in water from 2007 up to 2010 was reported to range between 25 and 357 ng/L [29]. The same group further investigated the PAHs concentration in water and sediments in the Moson Danube Arm and the upper area of the Danube River for the period 2014 to 2015 [30]. The total concentration of PAHs in water was found to vary from 16 to 133 ng/L, and the concentration in sediments varied in the range of 118 and 283 ng/g.…”

Section: Introductionmentioning

confidence: 99%

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Seasonal distribution, source identification, health and eco-toxicological risk assessment of Polycyclic Aromatic Hydrocarbons (PAHs) in water and sediment from the Danube River in Hungary

Grmasha

Stenger‐Kovács

Al-sareji

et al. 2023

Preprint

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The Danube is one of the largest transboundary rivers word-wide, having several tributaries. The discharges from industrial activities and wastewater treatment facilities affect the river's aquatic environment. These discharges pose a serious risk to aquatic life by degrading the water and sediment quality. Therefore, 16 Polycyclic Aromatic Hydrocarbons (PAHs) compounds in six different locations were examined along the river over 12 months to investigate the temporal and special variations of the compounds in water and sediment. The findings highlighted a broad variance range in PAHs concentration in water within a year, ranging from 224.85 ng/L in summer to 365.87 ng/L in winter, whereas PAHs in sediment samples recorded values ranging from 316.72 ng/g in dry weight in summer to 422.98 ng/g in dry weight in winter. The overall results indicate that the putative anthropogenic sources of PAHs were of pyrolytic and pyrogenic origin, with pyrogenic sources being more prominent. Generally, except for Acenaphthylene and Fluorene concentrations, the eco-toxicological concerns for the aquatic environment of the Danube River do not pose a significant threat. In addition, the combined impact of the 16 PAHs pollutants in sediments suggests a low chance for negative biological impacts and low ecological risk. The total ILCR for both children and adults is more than 1/104 in all seasons, with the highest values recorded in spring followed by winter time, which becomes a matter of urgency.

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“…One method of risk assessment would be to assume that the toxicity of all the PAHs is equivalent to that of BaP. Several available data have evaluated on the carcinogenic potency of different PAHs and developed toxicity equivalency factors (TEFs) for the individual PAHs [10]. These TEFs indicate the carcinogenic potency of each compound relative to BaP, and multiplying the concentration of each PAH by the TEF yields a concentration for the total PAH mixture that is expressed in terms of an equivalent concentration (with regarding to toxic potency) of BaP.…”

Section: Bap-equivalent Concentrations and Lifetime Lung Cancer Risk mentioning

confidence: 99%

Particle-Associated PAHs in Urban and Rural Ambient Air Samples

Nagy¹,

Szabó²

2018

World Congress on Civil, Structural, and Environmental Engineering

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The purpose of this study was to evaluate and compare the concentration levels and distributions of airborne polycyclic aromatic hydrocarbons (PAHs) between urban area of Győr and the nearest rural area of Sarród (Hungary). Nineteen selected polycyclic aromatic hydrocarbons (PAHs) including the 16 priority US EPA PAH compounds, 2-methylnaphthalene, benzo(j)fluoranthene and benzo(e)pyrene in PM10 aerosol samples were determined under the authority of the Government Office for Győr-Moson-Sopron County, Environmental Protection Laboratory and seasonal distributions were examined based on long-term monitoring data. Moreover, the concentration levels of fine (PM2.5) particle-associated PAHs measured in Győr in a heating season are also discussed. About 2 times higher Total PAHs concentrations were obtained for urban samples compared to the rural samples on average. All of the investigated PAH compounds were identified in the PM10 aerosol samples. PAHs fluctuate significantly in all years with higher means and peak concentrations in the winter and autumn compared to that of spring or summer times at both monitoring sites. Approximately 27 and 18 times higher benzo(a)pyrene (BaP) toxic equivalence quotient (TEQ) concentrations in PM10 in urban and rural sites were detected in the heating seasons, respectively. Acenaphthene and fluorene were not detected in the PM2.5 samples. The dominant PM2.5-bound PAH compounds were indeno(1,2,3-cd)pyrene and sum of three benzofluoranthene isomers followed by benzo(ghi)perylene and BaP. Relatively high mean TEQ concentration level were observed for PM2.5-bound PAHs in the examined heating season.

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Occurrence and distribution of polycyclic aromatic hydrocarbons in surface water of the Raba River, Hungary

Cited by 16 publications

References 38 publications

Photochemical degradation of PAHs in estuarine surface water: effects of DOM, salinity, and suspended particulate matter

Photochemical degradation of PAHs in estuarine surface water: effects of DOM, salinity, and suspended particulate matter

Seasonal distribution, source identification, health and eco-toxicological risk assessment of Polycyclic Aromatic Hydrocarbons (PAHs) in water and sediment from the Danube River in Hungary

Particle-Associated PAHs in Urban and Rural Ambient Air Samples

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