Origin and distribution of polycyclic aromatic hydrocarbon pollution in sediment and fish from the biosphere reserve of Urdaibai (Bay of Biscay, Basque country, Spain) (original) (raw)
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Chemosphere, 2002
Samples of intertidal surface sediments (0-2 cm) were collected in 17 stations of the Santander Bay, Cantabric Sea, Northern Spain. The concentrations of polycyclic aromatic hydrocarbons (PAHs), 16, were analysed by HPLC and MS detection. Surface sediments show a good linear correlation among the parameters of the experimental organic matter evaluation, where total carbon (TC) and loss on ignition (LOI) are approximately 2.5 and 5 times total organic carbon (TOC). A wide range of TOC from 0.08% to 4.1%, and a broad distribution of the sum of P 16PAHs, from 0.02 to 344.6 lg/g d.w., which can be correlated by an exponential equation to the TOC, has been identified.
Environmental science and pollution research international, 2018
The use of marine resources for mussel culture has become increasingly important, particularly on the European Atlantic coast and notably in the Galician Rías in the northwest of Spain. Despite its importance, there is a lack of research and analysis in this area and of the potential problems that it could cause to the environment. This paper details the findings of a study that aimed to find the probable environmental impact of mussel culture activities and to evaluate the polycyclic aromatic hydrocarbon (PAH) content derived from this activity. The Ría de Arousa, where you can find over 70% of all installed rafts in Galicia, was selected for the present study, and nearly 40 marine sediment samples were collected there. The sediments were extracted by ASE (accelerated solvent extraction) procedure, and the quantification of PAHs was performed using gas chromatography coupled to mass spectrometry (GC-MS), with the aid of deuterated PAH internal standards. The total concentration of ...
International Journal of Environmental Analytical Chemistry, 2011
This study corresponds to preliminary work representing an initial assessment for spatial distribution of polycyclic aromatic hydrocarbons (PAHs) in the Cilician Basin coastal sediments. The concentrations of PAHs in shelf sediments were determined from the three different regions of Cilician Basin (Eastern Mediterranean) in 2011. Concentrations of PAHs were low 5.43-271 ng g À1 with respect to other coastal sediments in the Mediterranean and these results could be compared with concentrations found in open sea areas. PAH composed mainly of pyrolytic four and five-ring compounds. An abundance of high molecular weight PAHs indicated that atmospheric particles and urban aerosols are the major input route of hydrocarbons in the Cilician and Lattakia Basins. PAH levels were assessed in accordance with numerical Sediment Quality Guideline (SQG) of the USEPA. The results showed that no samples exceeded biological thresholds to pose biological impairments.
2022
Data about the presence of polycyclic aromatic hydrocarbons in biota from Tunisian coastal ecosystems is scarce. To our knowledge, this is the rst work to report these chemicals in the biota of Ghar El Melh Lagoon. In Liza aurata muscle from Bizerte and Ghar El Melh Lagoons (Tunisia), levels of 15 priority polycyclic aromatic hydrocarbons were measured. Total PAH levels in mullet from Bizerte and Ghar El Melh Lagoons were comparable to or lower than those found in other sh specimens from around the globe. The nature of the detected chemicals reveals petrogenic and pyrolytic anthropogenic contamination in both studied lagoons. Threat to human health caused by mullet consumption was assessed and it was observed that PAH intakes don't threat to local population's health. Full Text Coastal ecosystems, which are a source of remarkable goods and services, face advanced demographic pressure (Ben Othman et al. 2013) resulting in increased contamination by metallic, organic and inorganic pollutants. One of the main environmental risk factor for human health is pollution of aquatic ecosystems (Jafarabadi et al. 2019). Among the organic pollutants having impacts on marine ecosystems are Polycyclic Aromatic hydrocarbons (PAHs) (Ben Othman et al. 2013). Polycyclic Aromatic Hydrocarbons are a family of semi-volatile chemicals that include at least two bonded benzene rings in a variety of dispositions and are mostly derived from petrogenic, biogenic, and pyrogenic origins (Jafarabadi et al. 2019). In the environment, more than 100 PAH congeners (which include parent PAHs and alkylated derivatives) have been reported. Among them, 16 PAHs have been listed as priority hazardous pollutants (Jafarabadi et al. 2019), according to the International Agency for Research on Cancer, chrysene, benzo[a]anthracene, dibenzo[a,h]anthracene, benzo[k] uoranthene, benzo[a]pyrene, benzo[g,h,i]perylene, benzo[b] uoranthene, and indeno[1,2,3-cd]pyrene are all possibly carcinogenic to humans (Jafarabadi et al. 2019). Petrogenic sources, such as polycyclic aromatic hydrocarbons related to oil spillage and pyrogenic sources, which include PAHs originating from fossil fuel burning, biomass burning, waste incineration, and asphalt processing, are the two most common origins of PAHs in the environment. Due to their stabilility, long distance transportation and bioaccumulation characteristics, these pollutants are widely dispersed in all parts of the environment, such as the air, water, sediments, as well as biological tissues (Habibullah-Al-Mamun et al. 2019). PAHs can be introduced into the environment through a variety of anthropogenic causes, such as incomplete wood, coal, or petroleum benzine burning, ship loading/unloading, wastewater sludge, municipal e uent release, runoff, and atmospheric rainfall (Jafarabadi et al. 2019). PAHs are widespread in marine environments like estuaries, coastal zones, and the deep sea because of human activities and their relative long half-life (Habibullah-Al-Mamun et al. 2019). PAHs can reach the aquatic ecosystems in a variety of manners, such as navigation and sheries, shipbuilding and shipbreaking, manufactury and urban e uent pollution, drainage from the land and rivers, atmospheric deposition, petrochemical spillage etc. PAH pollution in the environment has become a major focus of interest around the world because of their carcinogenic and mutagenic effects (Habibullah-Al-Mamun et al. 2019). * Yassine El Megdiche and Takoua Mhadhbi contributed to sample collection and preparation.
Bulletin of environmental …, 2007
Polycyclic aromatic hydrocarbons (PAHs) were detected and quantified in recent marine sediments and selected species from fishes, bivalves and crustaceans of Abu Qir Bay during the period January-October 2004. Nineteen sampling stations were chosen to collect sediment samples covering almost the Bay area. Total PAHs found in the surficial bottom sediments of the Bay were identified in moderate values ranging between 69 and 1,464 ng/g dry weights. The distribution pattern of these compounds showed the availability of most di, tri-and tetra aromatics in the Bay area in addition to their alkyl derivatives. High molecular weight aromatic hydrocarbons of five or more ring were detected everywhere in the Bay sediments. Certain number of pairs of isomer PAH concentrations are used for five origin molecular indices to identify the PAH concentration sources in the sediments of the Bay: Fluo/Py, Fluo/[Fluo + Py], LMW/HMW, BbF/BaP and BkF/BaP. Abu Qir Bay sediment samples were contaminated mainly by pyrolytic and petrogenic contaminations with strong pyrolytic inputs in the southwestern basin, while the northeastern area of the Bay is contaminated mainly by petrogenic PAHs. The studied biota samples of the Bay revealed levels of moderately contaminated specimens with total PAHs, while the carcinogenic PAH, benzo(a)pyrene were detected in most biological samples in levels ranged between 30.3 and 358 ng/g with an average of 152.4 ng/g should be taken into consideration.
2021
Polycyclic aromatic hydrocarbons (PAHs) have carcinogenic and mutagenic properties and their main origin in the environment is the burning of fossil fuels and organic material and they are considered high priority Persistent Organic Compounds (POPs). In the present study (March and August 2018) the concentrations of the 16 priority PAHs were analyzed in sediments and organisms (fish and oysters) in the estuarine-lagoon system Tuxpan-Tampamachoco, Veracruz; Mexico.The analysis of these compounds was carried out by means of gas chromatography-FID and mass spectrometry. In March (dry season) the average concentration of PAHs in sediments was 0.86 ± 0.39 μg/g and in August (rainy season) it was 1.14 ± 0.45 μg/g. During both collections, chrysene presented the highest total concentrations and a domain of the compounds with 4 benzene rings was observed, therefore, pyrolytic sources of contribution predominated. The highest concentrations of PAHs occurred in 2 stations located in the Tuxpa...
Chemosphere, 2008
Along 10 campaigns, from June 2002 to September 2004, the concentrations of 16 polycyclic aromatic hydrocarbons (PAHs) were measured in sediments and oysters (Crassostrea sp.) taken from four sites in the Unesco protected natural reserve of Urdaibai (Basque Country, Bay of Biscay). Total PAH concentration ranged from 0.7 to 140 μg kg−1 (dw) in the case of sediments, and from 300 to 1400 μg kg−1 (dw) in the case of oysters. During this study, the coast of the Bay of Biscay was severely affected by the Prestige oil spill (November 2002). Presumably, as a consequence of this accident, both spatial and temporal variations of the PAHs, as well as the sources of the PAHs were affected by the oil spill, and this effect was observed in the total concentrations and, especially, in several diagnostic ratios and in multivariate data analysis. Finally, both BAF (bioaccumulation factor) and BSAF (biota-sediment accumulation factor) parameters were calculated to conclude that particulate matter seems to be the most favourable uptake pathway of PAHs in oysters from this estuary.