Mass balance of lead through a small macrotidal estuary: The Morlaix River estuary (Brittany, France)

Monbet, Ph.

doi:10.1016/j.marchem.2005.08.003

Cited by 32 publications

(15 citation statements)

References 55 publications

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“…Pb mean values obtained for the considered stations are comparable with Pb concentrations in clean coastal sediments (lower than 25 µg g −1 (UNEP 1985;Bryan and Langston 1992)) and slightly higher than average Pb levels in Indian River sediments (about 14 µg g −1 (Decov et al 1999). As evidenced in Table 3, an overall elevated concentration of Pb was observed in deeper layers of each core samples reaching its maximum value of 34.1 µg/g at S 2 in 10-15 cm in midlittoral zone which might be ascribed to river borne sources (Forstner 1983) as well as intensive human activities (Alagarsamy 2006) including agriculture in the drainage basin (Monbet 2006), auto-exhaust emission together with atmospheric deposition (Adriano 1986). In addition, a substantial contribution from the factories located in the upstream of the Hugli river dealing with lead producing lead ingots and lead alloys plays a vital role as mentioned by Sarkar et al (2007).…”

Section: Heavy Metals In Horizontal and Vertical Variationsmentioning

confidence: 90%

An assessment of trace element contamination in intertidal sediment cores of Sunderban mangrove wetland, India for evaluating sediment quality guidelines

Chatterjee

Massolo

Sarkar

et al. 2008

Environ Monit Assess

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This paper presents a comprehensive account regarding concentration, distribution and possible sources of trace elements (Al, Cd, Co, Cr, Cu, Fe, Mn, Ni, Pb, Zn) in 20-30 cm sediment cores (<63 microm particle size) collected at the confluence of the Ganges River and Bay of Bengal (Sunderban wetland, India). This work aims to evaluate the fluvio-marine and geochemical processes influencing the metal distribution. The most interesting features are the downward increase of concentrations of majority of the elements reaching overall maximum values at a depth of 10-15 cm observed in station Lot No.8 located along the main stream of the Ganges estuary as well as an overall elevated concentration of all the elements in the lower littoral zone. The interelemental relationship revealed the identical behaviour of elements during its transport in the estuarine environment. The overall variation in concentration can be attributed to differential discharge of effluents originating from industrial and agricultural as well as from domestic sewage. Arsenic exceeded effects range - low (ER - L) concentrations, implying occasional or frequent adverse biological effects. For Cu, Ni and Cr a smaller proportion of samples had exceeded the ER - L values indicating that the dataset would be suitable for future use in evaluating predictive abilities of SQGs.

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Section: Heavy Metals In Horizontal and Vertical Variationsmentioning

confidence: 90%

An assessment of trace element contamination in intertidal sediment cores of Sunderban mangrove wetland, India for evaluating sediment quality guidelines

Chatterjee

Massolo

Sarkar

et al. 2008

Environ Monit Assess

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“…French (Cu, Pb, Ni, Zn;Chiffoleau et al, 1999;Monbet, 2006) and English (Co, Cu, Pb, Ni, Zn;Laslett, 1995;Martino et al, 2002) estuaries and marine adjacent areas as well as those of the southwestern Spanish coast (Cd, Cu, Zn;van Geen et al, 1991;Elbaz-Poulichet et al, 2001) show higher levels of the investigated metal than the waters of the Sound.…”

Section: Allochthonous Sources Of Metals In the Sound: Oceanic Influencementioning

confidence: 96%

Trace metals in the NE Atlantic coastal zone of Finisterre (Iberian Peninsula): Terrestrial and marine sources and rates of sedimentation

Prego¹,

Santos-Echeandía²,

Bernárdez³

et al. 2013

Journal of Marine Systems

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Abstract. The biogeochemical patterns of bioactive metals (Cd, Co, Cu, Ni, V and Zn) and Pb were studied in the Corcubión Sound, an area close to Cape Finisterre (NW Iberian Peninsula). Seasonal patterns of dissolved and particulate trace metals in the freshwater and seawater, as well as in the phytoplankton were determined during three upwelling events in the winter, late spring and summer of 2005. Metals were also analysed in the surface and to 1 m-depth in the sediments. Upwelling patterns permit the discrimination between those of the outer Sound and Corcubión Inlet. Dissolved trace metals concentrations in the seawater of the outer Sound were in the range of those reported for the Northeast Atlantic Ocean. Mean values of dissolved metals concentrations in the upwelled ENACW were: 0.07±0.03 nMCd, 0.11±0.02 nMCo, 2.6±1.6 nMCu, 4.6±0.6 nMNi, 0.20±0.10 nMPb, 31±2 nMV and 3.8±2.3 nMZn. Higher values for dissolved Co, Cu and Zn were measured in two inflowing streams and in the Inlet. A severe-moderate contamination of these metals and Pb was detected in the sediments of the Inlet. Three different sediment layers were observed in cores located at the outer-Inlet boundary. The most recent showed the highest mass accumulation rates, mainly of Cu (e.g. 428 mgCu m -2 yr -1 ), Pb and Zn, during the last decade. The intermediate unit corresponds to the 20 th century (e.g. 39 mgCu m -2 yr -1 ) and the deeper layer from the 19 th to 14 th centuries can be regarded as representing the pre-industrial period, and show the lowest rates of metal accumulation (e.g. 7 mgCu m -2 yr -1 ). Diatoms were the main autochthonous source of metals in the sediments. The genus Chaetoceros, Lauderia dominates in the overlaying seawater during winter and Pseudonitzschia and Leptocylindrus were typical of summer blooms whilst in the sediments Chaetoceros, Paralia, Leptocylindrus and Thalassionema were the main diatoms genera. The comparison of the normalized metal vs. Si in the phytoplankton and vs Si in the biogenic opal of the sediment shows a prevailing lithogenic-anthropogenic origin of metals such as Cu, Fe, Ni, Pb and V while the upwelling was the main source for Cd in the sediments because of settling of diatoms. The continental influence and metal contamination is restricted to the innermost part of Sound during the last century where the anthropogenic activities supply Cd, Cu, Pb and Zn. Seasonally, dissolved trace metals concentrations in the outer Sound are within the normal range measured in the north-eastern Atlantic Ocean. The Sound system is pristine compared with the neighbouring and anthropogenically disturbed Rias, and may be a good reference of natural trace metal levels along the north-eastern Atlantic coast.

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“…Monitoring programs of metals in estuaries have been extensively studied elsewhere (Páez-Osuna et al 2003;Amiard et al 2005;Monbet 2006;Bowie et al 2006). However, there are few studies related to metal in waters of the Gulf of California.…”

Section: Introductionmentioning

confidence: 99%

Dissolved and particulate metals in water from Sonora Coast: a pristine zone of Gulf of California

García-Rico

Tejeda-Valenzuela

Jara-Marini

et al. 2010

Environ Monit Assess

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The purpose of this study was to investigate the distribution of metals (Cd, Pb, Hg, Cu, Fe, Mn, and Zn) in dissolved and particulate fractions in seawater from Bacochibampo Bay, Northern part of Mexico. Water samples were collected from November 2004 to October 2005. Metal analysis was done by graphite furnace atomic absorption spectroscopy. Results indicated highest concentrations of dissolved Cd and Zn in the sites localized at the mouth and center of the bay. During summer and spring, the highest levels of Cd, Mn, and Fe were detected, Zn in fall, and Pb and Cu in winter and spring. Mercury was the only metal that was not found in this fraction. In particulate fraction, Fe, Hg, and Mn were the most abundant elements in all the sampling sites, followed by Zn, Cu, Pb, and Cd. The highest levels of the majority of the metals were observed in the coastline, suggesting a continental and/or urban source for these chemicals. The highest level of Cd was detected during the summer and the rest of the metals in the fall. Statistically significant correlations were observed between dissolved and particulate forms of Pb:Mn, Cu:Fe, and Cu:Mn. The mean partition coefficient values were as follows: Fe>Mn>Cu>Pb>Cd>Zn. All dissolved metal concentrations found, except Pb, were lower than EPA-recommended water quality values. The levels of dissolved metals in this study reveal low bioavailability and toxic potential. However, further toxicological and sediment chemistry studies in this area are needed for a full risk assessment.

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Mass balance of lead through a small macrotidal estuary: The Morlaix River estuary (Brittany, France)

Cited by 32 publications

References 55 publications

An assessment of trace element contamination in intertidal sediment cores of Sunderban mangrove wetland, India for evaluating sediment quality guidelines

An assessment of trace element contamination in intertidal sediment cores of Sunderban mangrove wetland, India for evaluating sediment quality guidelines

Trace metals in the NE Atlantic coastal zone of Finisterre (Iberian Peninsula): Terrestrial and marine sources and rates of sedimentation

Dissolved and particulate metals in water from Sonora Coast: a pristine zone of Gulf of California

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