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| Bouloubassi, I; Saliot, A. |
| Surface sediments were collected in the Rhone delta, NW Mediterranean, at two seasons and analyzed for composition of non-aromatic hydrocarbons (NAH), long-chain linear alkylbenzenes (LAB) and polycyclic aromatic hydrocarbons (PAH) by GC and GC/MS following fractionation by normal phase HPLC. Concentrations varied from 21.2 to 166.7 mu/g for NAH, from 2097.9 to 9324.2 ng/g for total PAH and from 342.5 to 2713.0 ng/g for LAB. These levels are comparable to those reported for other coastal areas worldwide in the vicinity of important urban and industrial activities. Detailed analysis permitted identification of several contributions to the bulk sedimentary hydrocarbon mixture from fossil fuel related sources, pyrolytic processes, domestic wastes as well as... |
| Tipo: Text |
Palavras-chave: ANTHROPOGENIC NATURAL INPUTS; ESTUARY; HYDROCARBONS; MEDITERRANEAN; SEDIMENTS. |
| Ano: 1993 |
URL: http://archimer.ifremer.fr/doc/00099/21043/18669.pdf |
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| Aminot, Alain; Guillaud, Jean-francois; Andrieux, Francoise. |
| The Bay of Seine receives the French river with the highest nutrient concentrations, especially phosphorus. Dissolved (phosphate) and particulate phosphorus fluxes have been determined from fortnightly serial data collected by the Port Autonome de Rouen. These determinants exhibit behaviour opposite to that of the river flow: phosphate concentration decreases hyperbolically and particulate phosphorus increases linearily. An approach based on the rate of domestic effluent treatment agrees well (20%) with the measured phosphate flux. The determination of the main particulate phosphorus forms (adsorbed, apatite, non-apatite inorganic, organic) was undertaken over the whole estuarine salinity range. The speciation of particulate phosphorus exhibits a great... |
| Tipo: Text |
Palavras-chave: PHOSPHORUS; SPECIATION; FLUX; ESTUARY; SEINE. |
| Ano: 1993 |
URL: http://archimer.ifremer.fr/doc/00100/21126/18746.pdf |
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