Gas chromatographic-mass spectrometric characterization of polycyclic aromatic hydrocarbon mixtures in polluted coastal sediments

Cantón, L.; Grimalt, Joan O.

doi:10.1016/0021-9673(92)87086-n

Cited by 51 publications

(17 citation statements)

References 31 publications

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“…[49] Thus, in agreement with previous studies, the mixture of multiple urban/industrial combustion processes could be considered the main PAH source in the area. [24,50,51] Despite the large spatial scale predominance of urban/industrial pyrolitic PAHs, the variations in the overall composition pattern and the scatter observed in the cross-plots of the diagnostic ratios are indicative of secondary inputs, which are reflected at smaller spatial scales. [9,37] The scatter observed at coastal locations could be because the ratios used were more suitable for urban environments.…”

Section: Characterisation Of Pah Origin and Emission Sourcesmentioning

confidence: 95%

Sources and spatial distribution of polycyclic aromatic hydrocarbons in coastal sediments of the Basque Country (Bay of Biscay)

Legorburu

Rodríguez

Valencia

et al. 2014

Chemistry and Ecology

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This contribution characterises the sources and distribution of polycyclic aromatic hydrocarbons (PAHs) in sediments of the Basque coast (Bay of Biscay). Different source characterisation approaches (i.e. GIS assisted-chemometrics, PAH diagnostic ratios and analyses of composition profiles) were used in combination to successfully identify the factors determining the origin and distribution of PAHs. Urban/industrial combustion processes were identified as the main PAH source. However, the analysis of PAH composition patterns and diagnostic ratios identified secondary natural and petrogenic PAH sources on small spatial scales. The median 18PAH concentration ranged from 66 μg kg −1 (d.w.) to 7021 μg kg −1 (d.w.). The Ibaizabal estuary, which supports most of the anthropogenic pressure in the region (i.e. urban development, industrialisation, commercial and recreational harbours), also showed the highest PAH concentrations. On the shelf, human activities, hydrodynamic conditions and geomorphological features led to spatial differences in the PAH concentrations among sectors: the offshore and west sectors were characterised by higher concentrations, while the lowest values were found in the mid and east sectors. The results enhance the knowledge on PAH-related contamination processes and could be used to support the environmental assessment process required under current European marine legislation.

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Section: Characterisation Of Pah Origin and Emission Sourcesmentioning

confidence: 95%

Sources and spatial distribution of polycyclic aromatic hydrocarbons in coastal sediments of the Basque Country (Bay of Biscay)

Legorburu

Rodríguez

Valencia

et al. 2014

Chemistry and Ecology

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“…The fingerprints of PAHs isomers with the same molecular weight and similar structure have often been used to discern the origin of hydrocarbons found in sediment or soil because of resemble thermodynamic partition and kinetic mass behavior and can be diluted equally upon adjectively mixing with natural particulate matter (Sanders et al, 2002;Baumard et al, 1998;Canton and Grimalt, 1992). In the study, PAHs with 5, 6 rings predominated significantly in the irrigation soils with the ratios of LMW-PAHs to HMW-PAHs in the soil samples less than 0.03 (see Table 1).…”

Section: Source Identification Of Pahs In Soilmentioning

confidence: 99%

Residues and source identification of persistent organic pollutants in farmland soils irrigated by effluents from biological treatment plants

Chen

Wang

2005

Environment International

212

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“…Biodegradation makes microbial enzymatic oxidative reactions that, given optimal conditions, lead to the total mineralization of the substrate (Atlas, 1977;Lapinska, 1989;Leahy and Colwell, 1990). Oily wastes are generally compounds having hydrocarbonated chains and heteroatoms (N, S, 0), which are classified within four groups: aliphatic, aromatic, asphaltenes, and resins (Canton and Grimalt, 1992). The toxicity of each fraction is variable.…”

Section: Ntroducti 0 Nmentioning

confidence: 99%

Use of the ?Sediment-Chromotest? for monitoring stimulated hydrocarbon biodegradation processes

Ramírez

Vargas

Sánchez

1996

Environ. Toxicol. Water Qual.

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The use of “Sediment‐Chromotest” for monitoring biodegradation processes is based upon its sensitivity to detect organics, inorganics, and toxic heavy metals commonly found in oily sludges. These residues, treated by bioaugmentation, were evaluated for toxicity by carefully monitoring experimental plots before the biodegradation process, during its development, and then for a period of 200 days of treatment. The data obtained demonstrated that the sediment biodetoxification process presented a point of maximum toxicity at the end of the first phase (53 days) due to the generation of intermediate metabolite products from the breakdown of complex compounds. Following the first phase, as intermediate metabolites disappeared, toxicity becomes almost negligible after a 200 day period. © 1996 by John Wiley & Sons, Inc.

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Gas chromatographic-mass spectrometric characterization of polycyclic aromatic hydrocarbon mixtures in polluted coastal sediments

Cited by 51 publications

References 31 publications

Sources and spatial distribution of polycyclic aromatic hydrocarbons in coastal sediments of the Basque Country (Bay of Biscay)

Sources and spatial distribution of polycyclic aromatic hydrocarbons in coastal sediments of the Basque Country (Bay of Biscay)

Residues and source identification of persistent organic pollutants in farmland soils irrigated by effluents from biological treatment plants

Use of the ?Sediment-Chromotest? for monitoring stimulated hydrocarbon biodegradation processes

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