Fluxes and transport of anthropogenic and natural polycyclic aromatic hydrocarbons in the western Mediterranean Sea

Lipiatou, Elisabeth; Saliot, A.

doi:10.1016/0304-4203(91)90025-r

Cited by 172 publications

(88 citation statements)

References 39 publications

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“…They are at least one order of magnitude lower than those reported for coastal areas subjected to enhanced urban and/or fluvial inputs such as Saronikos Gulf, Greece (Sklivagou et al, 2008); the coastal area off Barcelona, Spain (Tolosa et al, 1996); the Danube estuary, Black Sea (Readman et al, 2002;Wakeham, 1996); and the coastal area off Alexandria, Egypt (Aboul-Kassim and Simoneit, 1995). Total sedimentary PAH concentrations are also significantly lower than those reported for surface sediments in coastal/estuarine areas in the Mediterranean Sea and worldwide receiving enhanced anthropogenic inputs (e.g., Bouloubassi et al, 2012;Cardellicchio et al, 2007;Lipiatou and Saliot, 1991;Sklivagou et al, 2008;Tolosa et al, 1996;Witt, 1995). They are also lower than concentrations found in deep-sea settings such as the Black Sea (Wakeham, 1996), Cap Ferret Canyon/Atlantic Ocean (OSPAR QRS, 2000) and the Arctic Ocean (Yunker et al, 2011).…”

Section: Aliphatic and Polycyclic Aromatic Hydrocarbons Levelsmentioning

confidence: 97%

Occurrence, sources and transport pathways of natural and anthropogenic hydrocarbons in deep-sea sediments of the eastern Mediterranean Sea

et al. 2013

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Abstract. Surface sediments collected from deep basins (1018-4087 m depth) of the eastern Mediterranean Sea (Ionian Sea, southern Aegean Sea and northwestern Levantine Sea) were analyzed for aliphatic and polycyclic aromatic hydrocarbons as tracers of natural and anthropogenic inputs. Concentrations of total aliphatic hydrocarbons, n-alkanes and the unresolved complex mixture (UCM) of aliphatic hydrocarbons varied significantly, ranging from 1.34 to 49.2 µg g −1 , 145 to 4810 ng g −1 and 0.73 to 36.7 µg g −1 , respectively, while concentrations of total polycyclic aromatic hydrocarbons (PAHs) ranged between 11.6 and 223 ng g −1 . Molecular profiles of determined hydrocarbons reflect a mixed contribution from both natural and anthropogenic sources in deep-sea sediments of the eastern Mediterranean Sea, i.e., terrestrial plant waxes, degraded petroleum products, unburned fossil fuels and combustion of grass, wood and coal. Hydrocarbon mixtures display significant variability amongst sub-regions, reflecting differences in the relative importance of inputs from various sources and phase associations/transport pathways of individual hydrocarbons that impact on their overall distribution and fate. Hydrocarbon concentrations correlated significantly with the organic carbon content of sediments, indicating that the latter exerts an important control on their transport and ultimate accumulation in deep basins. Additionally, water masses' circulation characteristics also seem to influence the regional features and distribution patterns of hydrocarbons. Our findings highlight the role of deep basins/canyons as repositories of both natural and anthropogenic chemical species.

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Section: Aliphatic and Polycyclic Aromatic Hydrocarbons Levelsmentioning

confidence: 97%

Occurrence, sources and transport pathways of natural and anthropogenic hydrocarbons in deep-sea sediments of the eastern Mediterranean Sea

et al. 2013

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“…[22][23][24][25][26] According to these references, the ratios between pairs of individual PAHs are often employed to determine the sources of PAHs (See ESI for more information, ESI †). Fig.…”

Section: Source Identificationmentioning

confidence: 99%

Distribution, sources, and potential toxicological significance of PAHs in drinking water sources within the Pearl River Delta

Qiao

et al. 2011

J. Environ. Monit.

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The Pearl River Delta (PRD) region is one of the most population-dense areas in China. The safety of its drinking source water is essential to human health. Polycyclic aromatic hydrocarbons (PAHs) have attracted attention from the scientific community and the general public due to their toxicity and wide distribution in the global environment. In this work, PAHs pollution levels from the drinking source water in nine main cities within the PRD were investigated. P 15 PAHs concentrations during the wet season varied from 32.0 to 754.8 ng L À1 in the dissolved phase, and from 13.4 to 3017.8 ng L À1 in the particulate phase. During the dry season, dissolved PAHs ranged from 48.1 to 113.6 ng L À1 , and particulate PAHs from 8.6 to 69.6 ng L À1 . Overall, P 15 PAHs concentrations were extremely high in the XC and ZHQ stations during the wet season in 2008 and 2009. In most sites, PAHs originated from mixed sources. Hazard ratios based on non-cancerous and cancerous risks were extremely higher in XC compared with the others during the wet season, though they were much less than 1. Nevertheless, risks caused by the combined toxicity of P 15 PAHs and other organics should be seriously considered. PAHs toxic equivalent quantities ranged from 0.508 to 177.077 ng L À1 .

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“…31,32 Therefore, perylene in the present study was largely produced by diagenesis of natural organic matter in anoxic aquatic sediment, similar to previously reported results. 30,33 In numerous previous studies, [34][35][36] isomeric ratios of PAHs have been used to diagnose potential PAH emission sources. The utility of isomeric ratios largely hinges on an assumption that an isomer pair is attenuated to a similar extent during all transport processes before depositing in a receptor area.…”

Section: Source Diagnostics With Pah Composition and Principal Componmentioning

confidence: 99%

Sedimentary loadings and ecological significance of polycyclic aromatic hydrocarbons in a typical mariculture zone of South China

Bao

Wong

et al. 2012

J. Environ. Monit.

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Two sediment cores were collected from Hailing Bay located in a typical mariculture zone of Guangdong Province, South China, and analyzed for polycyclic aromatic hydrocarbons (PAHs). The concentrations of the sum of 27 PAHs ranged from 62 to 1200 ng g À1 dry wt, and sediment in the study area was considered to be moderately polluted by PAHs. Source diagnostics based on PAH composition and principal component analysis suggested that PAHs in the study area were mainly derived from petroleum combustion, with discharge of PAHs from fishing boats as an important source. Ecological risk assessment results indicate that PAHs in sediment of the present study currently have minimal adverse effect on the mariculture environment. Comparison of sedimentary inventory of PAHs in the fish harbor of the study area with those in the Pearl River Estuary and the coastal Bohai Bay indicate that the sediment has become an important reservoir of PAHs.

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Fluxes and transport of anthropogenic and natural polycyclic aromatic hydrocarbons in the western Mediterranean Sea

Cited by 172 publications

References 39 publications

Occurrence, sources and transport pathways of natural and anthropogenic hydrocarbons in deep-sea sediments of the eastern Mediterranean Sea

Occurrence, sources and transport pathways of natural and anthropogenic hydrocarbons in deep-sea sediments of the eastern Mediterranean Sea

Distribution, sources, and potential toxicological significance of PAHs in drinking water sources within the Pearl River Delta

Sedimentary loadings and ecological significance of polycyclic aromatic hydrocarbons in a typical mariculture zone of South China

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