Role of suspended sediments on the distribution of PCB in the Seine Estuary (France)
Identifieur interne : 001613 ( France/Analysis ); précédent : 001612; suivant : 001614Role of suspended sediments on the distribution of PCB in the Seine Estuary (France)
Auteurs : Alain Abarnou ; Jacques Avoine [France] ; Jean Paul Dupont [France] ; Robert Lafite [France] ; Serge Simon [France]Source :
- Continental Shelf Research [ 0278-4343 ] ; 1987.
Abstract
Abstract: PCB (polychlorinated biphenyls) contamination and its relationship to SPM (suspended particulate material) have been studied in the Seine Estuary, which is heavily polluted by these persistent and hydrophobic man-made chemicals. Two sampling cruises have been performed during different freshwater discharge conditions. PCB and SPM concentrations, as well as grain-size distributions in the particulate material have been determined. Water samples have been collected at fixed positions during a tidal cycle, and along transects within the estuary.PCB concentrations vary from 2 ng 1−1 in the marine zone to 250 ng 1−1 within the estuary, and reach 1.3 × 103 ng 1−1 in the turbidity maximum zone. During a tidal cycle, low PCB concentrations are observed at high water, and are in the same range in February as in July. High PCB contamination is observed at low water, but PCB concentrations are about five times higher in February. SPM and PCB variations are well correlated in both periods of observations. Higher PCB contamination during February is explained by higher SPM inputs, mainly due to particles of riverine origin. The transport of PCB within the estuary depends on the quantity and the grainsize composition of suspended material, which varies according to freshwater discharge and tidal amplitude.
Url:
DOI: 10.1016/0278-4343(87)90038-0
Affiliations:
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ISTEX:6F37CAFA95103472B268A013A40331532F7C2AA4Le document en format XML
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pollution dans l'estuaire et la baie de Seine, Direction des Affaires Maritimes, 76083, Le Havre</wicri:regionArea><placeName><region type="region" nuts="2">Région Normandie</region><region type="old region" nuts="2">Haute-Normandie</region><settlement type="city">Le Havre</settlement></placeName></affiliation></author></analytic><monogr></monogr><series><title level="j">Continental Shelf Research</title><title level="j" type="abbrev">CSR</title><idno type="ISSN">0278-4343</idno><imprint><publisher>ELSEVIER</publisher><date type="published" when="1987">1987</date><biblScope unit="volume">7</biblScope><biblScope unit="issue">11–12</biblScope><biblScope unit="page" from="1345">1345</biblScope><biblScope unit="page" to="1350">1350</biblScope></imprint><idno type="ISSN">0278-4343</idno></series><idno type="istex">6F37CAFA95103472B268A013A40331532F7C2AA4</idno><idno type="DOI">10.1016/0278-4343(87)90038-0</idno><idno type="PII">0278-4343(87)90038-0</idno><idno 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Two sampling cruises have been performed during different freshwater discharge conditions. PCB and SPM concentrations, as well as grain-size distributions in the particulate material have been determined. Water samples have been collected at fixed positions during a tidal cycle, and along transects within the estuary.PCB concentrations vary from 2 ng 1−1 in the marine zone to 250 ng 1−1 within the estuary, and reach 1.3 × 103 ng 1−1 in the turbidity maximum zone. During a tidal cycle, low PCB concentrations are observed at high water, and are in the same range in February as in July. High PCB contamination is observed at low water, but PCB concentrations are about five times higher in February. SPM and PCB variations are well correlated in both periods of observations. Higher PCB contamination during February is explained by higher SPM inputs, mainly due to particles of riverine origin. The transport of PCB within the estuary depends on the quantity and the grainsize composition of suspended material, which varies according to freshwater discharge and tidal amplitude.</div></front></TEI><affiliations><list><country><li>France</li></country><region><li>Basse-Normandie</li><li>Haute-Normandie</li><li>Région Normandie</li></region><settlement><li>Caen</li><li>Le Havre</li><li>Mont Saint Aignan</li></settlement></list><tree><noCountry><name sortKey="Abarnou, Alain" sort="Abarnou, Alain" uniqKey="Abarnou A" first="Alain" last="Abarnou">Alain Abarnou</name></noCountry><country name="France"><region name="Région Normandie"><name sortKey="Avoine, Jacques" sort="Avoine, Jacques" uniqKey="Avoine J" first="Jacques" last="Avoine">Jacques Avoine</name></region><name sortKey="Dupont, Jean Paul" sort="Dupont, Jean Paul" uniqKey="Dupont J" first="Jean Paul" last="Dupont">Jean Paul Dupont</name><name sortKey="Lafite, Robert" sort="Lafite, Robert" uniqKey="Lafite R" first="Robert" last="Lafite">Robert Lafite</name><name sortKey="Simon, Serge" sort="Simon, Serge" uniqKey="Simon S" first="Serge" last="Simon">Serge Simon</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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