Spatial, vertical distribution and budget of polycyclic aromatic hydrocarbons in the western Mediterranean seawater
Article Abstract:
Polycyclic aromatic hydrocarbons (PAH) in the dissolved and particulate phases of the western Mediterranean seawater are determined in 21 surface stations and six vertical profiles to elucidate the transport pathways and processes that take place during sedimentation. In the suspended particulate matter (SPM) phases, the three-ring aromatics were prominent in PAH patterns. An even distribution in subsurficial waters was noted for PAHs associated with the SPM. PAHs in the deeper samples of vertical profiles in stations near submarine canyons and at the sewage disposal zone were observed to be enriched due to advective transport of particles.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1997
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Aliphatic and polycyclic aromatic hydrocarbons and sulfur/oxygen derivatives in Northwestern Mediterranean sediments: spatial and temporal variability, fluxes, and budgets
Article Abstract:
Aromatic hydrocarbons are pollutants increasingly found in water resources because of the rising number of urban centers discharging their wastes onto natural water systems. A study analyzing the spatial and temporal distribution of aliphatic and polycyclic hydrocarbons and sulfur/oxygen derivatives in sediments from the Northwest Mediterranean basin identified long-chain n-alkanes and perylene as the most abundant PAHs in the basin. The highest anthropogenic sources of PAHs are the Rhone River and the Ebro, with the former having approximately 25 times higher contribution.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1996
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Spatial and temporal distribution, fluxes, and budgets or organochlorinated compounds in Northwest Mediterranean sediments
Article Abstract:
High concentrations of organochlorinated compounds particularly polychlorinated biphenyl congeners were observed in Northwest Mediterranean surface sediments collected in the prodeltas of the Rhone and Ebro Rivers. Flux measurements and total input estimation of the compounds revealed a higher annual flux accumulation rate for PCBs over DDTs and hexachlorobenzene. Results also indicated a higher accumulation of the compounds in the Rhone area in the last 15 years than in the Ebro because of the banning of the compounds in that area.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1995
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