Potential toxicity of resuspended particulate matter and sediments: Environmental samples from the Bay of Banyuls-sur-Mer and Thermaikos Gulf

Cotou, Efthimia; Grémare, Antoine; Charles, François; Hatzianestis, I.; Sklivagou, E.

doi:10.1016/j.csr.2005.08.005

Cited by 21 publications

(14 citation statements)

References 23 publications

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“…These values may be considered high compared with concentrations from areas with little anthropogenic influence (Gogou et al 2000;Cotou et al 2005;Sklivagou et al 2008) and indicate contamination of all the examined sediment samples with various oil products. This is enhanced by the high abundance of the unresolved complex mixture (UCM) quantity in all sampling sites.…”

Section: Organic Compoundsmentioning

confidence: 74%

“…Polycyclic aromatic hydrocarbons (PAH) The PAH concentrations vary from 1,482 to 2,698 ng/g in the estuarine funnel area (KF1T-KF7B), whilst in the river bed (KF8-KF19) range from 595 to 14,125 ng/g. These amounts are particularly high compared with those existing in pristine areas (Lipiatou et al 1997;Gogou et al 2000;Pavlidou et al 2002;Cotou et al 2005), showing an overloading of the Kifissos River sediments with PAH. In addition, the PAH contents in the estuarine and river bed sediments compared with the corresponding value (115 ng/g) associated with the reference material of the Saronikos Gulf are characterized by values up to 22 and 122 times higher than that one, respectively (Fig.…”

Section: Organic Compoundsmentioning

confidence: 84%

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Environmental status of the metropolitan river (Kifissos) of Athens, Greece

et al. 2010

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Surficial and sub-surficial sediments obtained from the lower course of the Kifissos River, which drains the Athens Basin, have been analyzed for heavy metals and aliphatic and polycyclic hydrocarbons. Oddly, the calculated enrichment factors for the identified heavy metals, with the baseline taken from a pristine area in the adjacent Saronikos Gulf, are very low excluding only those related to Cu and Zn. In contrast, the enrichment factors for the measured hydrocarbons are particularly high. However, physicochemical water conditions and annual flushing episodes of the Kifissos River may have reduced significantly the sediment chemical fingerprint found out by the present study. Moreover, an evaluation of the fluvial sediment quality based on the enriched Cu and Zn amounts and concentration of PAH fraction with a consideration of the biological thresholds proposed by the National Oceanic and Atmospheric Administration (USA) reveals little probability for serious biological impairments. Additionally, sediment toxicity due to the sediment PAH load may be considered as minimum.

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Section: Organic Compoundsmentioning

confidence: 74%

Section: Organic Compoundsmentioning

confidence: 84%

Environmental status of the metropolitan river (Kifissos) of Athens, Greece

et al. 2010

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“…Os valores encontrados para a razão DNR-1, ASTON, 1983;MORSE, 1994;SAULNIER;MUCCI, 2000;CAETANO et al, 2002;COTOU et al, 2005;CANTWELL et al, 2008;MACHADO et al, 2011).…”

Section: Resultsunclassified

“…Esses aspectos influenciam, notavelmente, as formas químicas dos contaminantes, e consequentemente, a sua biodisponibilidade (COTOU et al, 2005). Por exemplo, a ressuspensão dos sedimentos influencia os processos de oxidação e redução de alguns metais associados ao sedimento (GERHARDT et al,2005).…”

Section: Resultsunclassified

Separação De Asfaltenos Por Cromatografia Em Placa Preparativa E Análise Por Cg-Em De Biomarcadores Ocluídos

Lima¹,

Silva²,

Lopes³

et al. 2018

Fins Da Geologia

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“…In this regard, during dredging operations, resolubilization of metals and organic compounds from the sediments, even in highly contaminated areas, has been reported to be minimal (Ludwing and Sherrard 1988;EVS 1997). Nevertheless, other authors have shown that dredging operations SPM suspended particulate matter, COD chemical oxygen demand, BOD biochemical oxygen demand, DO dissolved oxygen, P Total total phosphorus, N Kjeldahl Kjeldahl nitrogen, ND not detected a Fecal coliforms may affect the aquatic biota due to chemical and physical changes in the environment (Fredette and French 2004;Cotou et al 2005;Wilber et al 2007). The length of time that sediments are resuspended plays a key role in determining the chemical impact on the water column (Tomson et al 2003) and the vast majority of resuspended sediment settles close to the dredged area within 1 h and only a small fraction takes longer to resettle (Van Oostrum and Vroege 1994).…”

Section: Physicochemical and Ecotoxicological Estuarine Aspects Durinmentioning

confidence: 99%

Physicochemical and ecotoxicological evaluation of estuarine water quality during a dredging operation

et al. 2009

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Purpose Most of the information concerning the effects of contaminated sediments on estuarine organisms deals with the impacts of bed forming sediments. The ecotoxicological potential at the time of a dredging operation is more difficult to assess, and few studies have dealt specifically with resuspended contaminated sediments. The aim of this study was to determine whether release of contaminants through sediment resuspension during a dredging operation in the Itajaí-açu estuary (Brazil) changed the water quality classification and had an ecotoxicological impact on the near-field water column during the critical moment of this operation. Materials and methods Waters from two sites (control and dredged sites) were analyzed for physicochemical parameters before, during, and after a dredging operation. In parallel, a short-term, sensitive battery of biotests (bacteria, algae, and daphnids) was performed with water samples before and during this operation according to the ISO bioassay protocols.Results and discussion No short-term toxicity was observed with waters collected before or during the dredging operation. The results showed that desorption of contaminants from suspended particles of sediments with a low level of contamination during a dredging operation lowered the water quality in the near-field water column but that this did not promote significant acute toxicity effects on the organisms tested. Conclusions More detailed studies are needed (e.g., the question of the reliability of biotests under turbulent, particle-rich conditions) to fully understand this complex issue regarding water column ecotoxicity during the whole dredging operation and to support decisions on the management of dredging activities.

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Potential toxicity of resuspended particulate matter and sediments: Environmental samples from the Bay of Banyuls-sur-Mer and Thermaikos Gulf

Cited by 21 publications

References 23 publications

Environmental status of the metropolitan river (Kifissos) of Athens, Greece

Environmental status of the metropolitan river (Kifissos) of Athens, Greece

Separação De Asfaltenos Por Cromatografia Em Placa Preparativa E Análise Por Cg-Em De Biomarcadores Ocluídos

Physicochemical and ecotoxicological evaluation of estuarine water quality during a dredging operation

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