Estimation de la contamination du milieu aquatique par les composés organo-halogénés (AOX et EOX) : application à l'étude d'accumulation et de relargage des EOX par Anodonta cygnea L., exposé in situ aux effluents d'une usine de pâte à papier

Abstract : Halogenated organic are more widespread in the environment than previously assumed, and originated either from natural and antropogenic sources. The use of the sum parameters aox (adsorbable organic halogens) and eox (extractable organic halogens), allows to palliate the analytical problems of individual identification of those compounds, among which a great majority is still unknown, and enables also their quantification in the different compartments of the aquatic environment : water, sediments and organisms. The study of four water courses has permitted to bring to the fore, and to confirm, the existence of several sources of organic halogenated compounds in the water and the sediments of North-eastern France. Among them, a chlorine bleaching pulp and paper mill is distinguished, and characterised by chronic emissions and high aox concentration in the water and the sediments of the receiving medium. In order the account the effects of such effluents on organisms, and to quantify the bioavailable fraction of micropolluants, four species of aquatic molluscs, Anodonta cygnea L. (bivalve unionidae), unio pictorum L. (bivalve unionidae), Dreissena polymorpha P. (bivalve dreissenidae) et Viviparus viviparus L. (gastropod viviparidae), were transferred and exposed up and down stream of the mill. The swan mussel, Anodonta cygnea L., has been retained as biological indicator for several reasons : its good resistance to the effluents ; its large size allowing studies on individual organisms and organs ; its high accumulation rate of halogenated organics. The accumulation and the release of these micropollutants by the mussel differ according to the considered organ, and depend on the physico-chemical characteristics of the organic halogenated compounds present in the effluent
Document type :
Theses
Complete list of metadatas

Cited literature [185 references]  Display  Hide  Download

https://hal.univ-lorraine.fr/tel-01777226
Contributor : Administrateur Du Ccsd <>
Submitted on : Tuesday, April 24, 2018 - 4:14:53 PM
Last modification on : Thursday, April 26, 2018 - 1:28:29 AM
Long-term archiving on : Wednesday, September 19, 2018 - 5:04:11 PM

File

Hayer.Frank.SMZ9745.pdf
Files produced by the author(s)

Identifiers

  • HAL Id : tel-01777226, version 1

Collections

Citation

Frank Hayer. Estimation de la contamination du milieu aquatique par les composés organo-halogénés (AOX et EOX) : application à l'étude d'accumulation et de relargage des EOX par Anodonta cygnea L., exposé in situ aux effluents d'une usine de pâte à papier. Sciences agricoles. Université Paul Verlaine - Metz, 1997. Français. ⟨NNT : 1997METZ045S⟩. ⟨tel-01777226⟩

Share

Metrics

Record views

11

Files downloads

26