Quality of dredged material in the River Seine basin (France). I. Physico-chemical properties

Carpentier, Sonia; Moilleron, Régis; Beltran, C; Daniel, Hervé; Thévenot, Daniel

doi:10.1016/s0048-9697(02)00055-4

Cited by 12 publications

(4 citation statements)

References 20 publications

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“…If such phenomena have been described in soils, studies in sediments are very seldom and particularly in strictly anaerobic conditions [19,20]. However, it is necessary to understand the microbial activity in anoxic sediments since the potential release of metals, particularly in fresh water, may contaminate the neighboring ground water masses, for example, in the case of storage of dredged sediments in wet ponds [21,22].…”

Section: Introductionmentioning

confidence: 99%

Biomobilization of Heavy Metals from the Sediments Affect the Bacterial Population of Al-Ghadir River (Lebanon)

Mcheik¹,

Fakih²,

Bousserrhıne³

et al. 2013

AFF

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Although there is no doubt about the importance of the bacterial activity on the solubilisation and the distribution of heavy metals in aquatic sediments, hydromorphic soils and ground waters; little is known about the involvement of bacterial dissolution in periodically anaerobic environments like that found in dredged sediments and little is known about the processes and the environmental factors controlling this process.The aim of this paper was to study the effect of the autochthonous bacterial activity on the biodegradation of organic matter and the mobilization of heavy metals in the sediments of Al-Ghadir river (Mount Lebanon). Sediments were incubated under standard anaerobic conditions and enriched with glucose to stimulate and accelerate microbial metabolism. The evolution of carbon metabolism (Organic matter evolved, carbon consumed and organic acids produced) and metals released in batch reactors were followed over time. Under the adopted conditions, analysis of the chemical parameters indicated that the incubated sediments showed a significant release of organic carbon corresponding to bacterial development. Mineral analysis showed an important solubilisation of Fe 2+ and Mn 2+ indicating the presence of Fe-and Mn-reducing bacteria in sediments. Pb, Cd and Cr solubilisation profiles were observed and appeared concomitant to the solubilisation profiles of Fe and Mn indicating that the redox cycle has been well installed and that Pb, Cd and Cr were associated to Fe and Mn oxides. The production of Cu appeared in parallel to the mineralization of the organic matter in the sediment indicating that Cu was associated to this fraction. Zn appeared associated to the sulphide fraction than to the Fe and Mn oxides fraction. Microbiological and genetic analysis showed a decrease and the disappearance of some bacterial strains due to the shift in the culture conditions and the toxicity of the released heavy metals but at the same time the development and the growth of many other populations which showed to be tolerant to the same conditions.

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Section: Introductionmentioning

confidence: 99%

Biomobilization of Heavy Metals from the Sediments Affect the Bacterial Population of Al-Ghadir River (Lebanon)

Mcheik¹,

Fakih²,

Bousserrhıne³

et al. 2013

AFF

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“…Furthermore, few studies have focused on the key role of certain bacterial communities such as iron-reducing bacteria (Bousserrhine et al 1999a(Bousserrhine et al , 1999bQuantin et al 2001). Such information is, however, necessary to understand the impact of microorganisms on anoxic sediments since the release of metals, particularly in freshwater, may contaminate neighboring groundwater masses, for example, in the case of storage of dredged sediments in ponds (Carpentier et al 2002a;2002b).…”

Section: Introductionmentioning

confidence: 99%

Influence of the Iron-Reducing Bacteria on the Release of Heavy Metals in Anaerobic River Sediment

Gounou

Bousserrhıne²,

Varrault

et al. 2010

Water Air Soil Pollut

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The impact of autochthonous anaerobic bacteria on the release of metals in river sediment was studied. The sediments were characterized and bacterial activity was monitored in a batch reactor, where the sediments were incubated with a synthetic substrate solution containing glucose as carbon source. The results showed that metal release was correlated to the bacterial growth (carbon mineralization). In particular, a relationship between iron reduction and metal release was observed indicating that iron-reducing bacteria had a strong influence. By reductive dissolution of iron oxides, bacteria also released their associated toxic elements into the liquid phase. While organic analysis showed acetate and butyrate production leading to a decrease in pH and indicating a Clostridium fermentative bacteria activity, the results did not indicate any direct role of organic acids in the dissolution of iron and their associated metals

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“…The Seine estuary (France) is considered as one of the most polluted estuaries in Europe, subject to an important anthropogenic pressure due to its location at the outlet of the Seine watershed (Burgeot et al, 2017;Cachot et al, 2006;Carpentier et al, 2002;Meybeck et al, 2004). The Seine basin represents a territory of 78 600 km and welcomes more than a quarter of the French population (Dévier et al, 2013).…”

Section: Mmentioning

confidence: 99%

Assessment of sperm DNA integrity within the Palaemon longirostris (H. ) population of the Seine estuary

Erraud¹,

Bonnard²,

Geffard³

et al. 2019

Environmental Pollution

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The interpretation of biomarkers in natura should be based on a referential of expected values in uncontaminated conditions. Nevertheless, to build a reference data set of biomarker responses in estuarine areas, which receive chronic pollution loads due to their transition position between continent and sea, is impossible. In this context, the aim of the present work was to propose the use of laboratory recovery period to define a baseline for the measurement of sperm DNA damage by Comet assay in the estuarine prawn Palaemon longirostris. For that, sperm DNA integrity was observed after both a passive (i.e. 20 days in a clean environment) and an active (i.e. forced renewal of spermatophores) recovery of wild P. longirostris specimens from the Seine estuary, in laboratory conditions. Then, the levels of sperm DNA damage recorded within the P. longirostris population of the Seine estuary, during six campaigns of sampling from April 2015 to October 2017, have been interpreted according to the defined threshold values. The results showed a persistence in the level of DNA damage after 20-day in clean environment with the passive recovery. This strategy was inconclusive to reach a baseline level but it revealed the lack of DNA repair mechanisms. For the active recovery, a decrease of 54 % of the level of DNA damage has been observed after the first renewal of spermatophores and this level stabilized after the second renewal. On the basis of this second strategy, we defined a mean basal value of sperm DNA damage of 54.9 A.U. and a maximum threshold of 69.7 A.U. (i.e. 95 %-CI). The analysis of the results using the reference value highlighted significant abnormal sperm DNA damage within the native population of P. longirostris from the Seine estuary on all stations during the six-sampling campaigns.

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Quality of dredged material in the River Seine basin (France). I. Physico-chemical properties

Cited by 12 publications

References 20 publications

Biomobilization of Heavy Metals from the Sediments Affect the Bacterial Population of Al-Ghadir River (Lebanon)

Biomobilization of Heavy Metals from the Sediments Affect the Bacterial Population of Al-Ghadir River (Lebanon)

Influence of the Iron-Reducing Bacteria on the Release of Heavy Metals in Anaerobic River Sediment

Assessment of sperm DNA integrity within the Palaemon longirostris (H. ) population of the Seine estuary

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