Abstract
Individual parent polycyclic aromatic hydrocarbons (PAHs) were identified and quantified in samples of recent sediments at 32 stations in the Ria de Vigo (NW Spain) and its adjacent shelf by high-performance liquid chromatography and a fluorescence detector. This area suffers the pressure of nearly 500,000 inhabitants and includes a number of important marine organisms. The total concentration for the sum of the 13 PAHs quantified were in the range 28–3203 ng/g. The highest concentrations were found near the city of Vigo, where marinas and dockyards as well as highways with a high traffic flow are established. Low PAH concentrations were determined in the outermost part of the estuary, far from the anthropogenic influence. PAH isomers concentration ratios were assessed, indicating that the main source of these compounds in the whole area is pyrolysis. When compared with the EACs, threshold effect level, and probable effect level values, only the samples from the inner part of the ría can occasionally present adverse biological effects due to the PAH concentrations.
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Viñas, L., Franco, M.A. & González, J.J. Polycyclic Aromatic Hydrocarbon Composition of Sediments in the Ría de Vigo (NW Spain). Arch Environ Contam Toxicol 57, 42–49 (2009). https://doi.org/10.1007/s00244-008-9230-6
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DOI: https://doi.org/10.1007/s00244-008-9230-6