Arsenic, iron and sulfur co-diagenesis in lake sediments

Couture, Raoul-Marie; Gobeil, Charles; Tessier, André

doi:10.1016/j.gca.2009.11.028

Cited by 130 publications

(92 citation statements)

References 77 publications

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“…The concentrations of most of the metals in the SR pore water varied slightly, and the highest concentration was founded between 15-and 20-cm depth, except for Zn, which concentration was varied dramatically in all depths. Most of the metals were found at low concentrations in the top layers of the sediment (which correspond with the oxic zone), and higher metal concentrations were found in the deeper layers corresponding with the sub-oxic zones, and these results were similar to the results of other studies (Campanha et al 2012, Couture et al 2010, SantosEcheandia et al 2009). …”

Section: Resultssupporting

confidence: 90%

Distributions, fluxes, and toxicities of heavy metals in sediment pore water from tributaries of the Ziya River system, northern China

Zhu

Shan

Li³

et al. 2015

Environ Sci Pollut Res

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The distributions and mobilities of metals in pore water strongly influence the biogeochemical processes and bioavailabilities of metals at sediment-water interfaces. Heavy metal concentrations were measured in pore water samples from the Shaocun River (SR), the Wangyang River (WR), and the Xiao River (XR), tributaries of the Ziya River system, northern China. The aim was to assess heavy metal contamination in the system and the associated environmental risks. The mean Cd, Cr, Cu, Ni, Pb, and Zn concentrations in all three tributaries were 0.373, 57.1, 37.7, 20.4, 14.0, and 90.6 μg/L, respectively. The calculated Cd, Cr, Cu, Ni, Pb, and Zn diffusion fluxes in the rivers were −0.427 to 0.469, −71.8 to 42.5, 3.16 to 86.6, 5.29 to 14.0, 7.24 to 19.0, and −204 to 21.9 μg/(m 2 day), respectively, showing that the pore water was a source of most of the metals to the water column. Only Cu and Pb in the XR and Cu in the WR exceeded the final chronic value recommended by the US Environmental Protection Agency, but the metals in the WR sediment could have caused toxic effects.These results are likely to be useful to the authorities responsible for sustainable river management.

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Section: Resultssupporting

confidence: 90%

Distributions, fluxes, and toxicities of heavy metals in sediment pore water from tributaries of the Ziya River system, northern China

Zhu

Shan

Li³

et al. 2015

Environ Sci Pollut Res

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“…But in waters of reservoir No 10 minimal iron concentrations occurred in slightly higher amounts. Seasonal complete disappearance of iron in limnic waters is also observed in lakes located in terrain of northern Poland (Tandyrak and Lizuraj 2008), and also in many lakes in the world (Inaba et al 1997;Shaked et al 2004;Couture et al 2010). The disappearance of iron in waters is most often correlated with phosphorus cycle in the water environment.…”

Section: Resultsmentioning

confidence: 92%

“…Tandyrak and Lizuraj 2008;Grochowska and Tandyrak 2009). It also refers to lakes filling natural bowls located on particular continents of northern temperate climatic zone and also in objects located in northern hemisphere (Inaba et al 1997;Zaw and Chiswell 1999;Couture et al 2010). Slightly higher values, sporadically exceeding 1.0 mg Fe l -1 , were observed in the selected lakes only after torrential rains (Zaw and Chiswell 1999).…”

Section: Resultsmentioning

confidence: 99%

Differentiation of concentration level of iron compounds in water reservoirs in subsidence depressions in the Katowice Upland

Machowski¹

2010

Limnological Review

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Abstract:The aim of investigations was to evaluate the influence of varied anthropopression on the concentration of iron compounds in water reservoirs located in subsidence depressions treated as geosystems. Investigations were carried out during period of three hydrological years 2003-2005 within 10 reservoirs located in the Katowice Upland. The presence of iron was systematically measured in water and one time in bottom deposits. Measurements in taken samples were made by means of spectrometer of atomic absorption SOLAAR M6. Results confirmed varied influence of anthropopression on concentration of iron compounds in described reservoirs. It refers to waters and bottom deposits as well. Large differences between reservoirs occurred in a case of iron concentration in bottom deposits. The smallest amounts of it (3.10 g kg ) were typical for one of reservoirs in Sosnowiec, whereas the maximum average iron concentration in amount of 0.4331 mg Fe l -1 referred to one of reservoirs in Zabrze. In the described reservoirs dynamic temporal changes in iron concentration in limnic waters was also stated. In every reservoir periods of complete disappearance of this metal occurred, whereas the maximum amounts of it in particular objects changed from 0.1132 mg Fe l -1 in reservoir in the borderland of Bytom and Chorzów up to 1.3744 mg Fe l -1 in reservoir located in Zabrze. The presence of iron compounds in the described water reservoirs on the one hand is shaped by environmental conditions, but on the other hand varied influence of anthropopression decides significantly of their spatial and temporal cycle in the nature.

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“…The results are consistent with the correspondingly greater proportions of dissolved and As (III) to total As contents in Caohai (Table 1). Because As (III) is more labile than As (V), it can easily be desorbed from the particulates and enter into water as the dissolved form (Couture et al 2010). As (III) accounted for nearly half of the total As at the surface of Caohai.…”

Section: Resultsmentioning

confidence: 99%

“…Arsenic in the water column is equilibrated between suspended particulates and water, with sorption and desorption reactions. These reactions are influenced by various factors, such as changes of temperature, pH and redox potential, organic degradation and other reduction reactions (Couture et al 2010). The sorption and desorption of As in lake waters have been found to be concomitant with As oxidation/reduction in the outer sphere of particulates, causing the sorption/ desorption of As between the particulate and water phases (Gao et al 2006).…”

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confidence: 99%

Arsenic Variation in Two Basins of Lake Dianchi

Wei

Zhang

2012

Bull Environ Contam Toxicol

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The spatial variation of arsenic, including arsenic speciation changes under the influence of water quality parameters in lake Dianchi, China was investigated. The water quality parameters were found to differ between the two basins of the lake (Caohai vs. Waihai), consistent with the eutrophic status. Arsenic in Caohai was greater than that in Waihai, with average values as 9.45 and 6.68 lg L -1 , respectively. Expect redox potential, correlation between various water quality parameters and arsenic forms were found, supporting the hypothesis that arsenic partition in suspended particulates in Lake Dianchi was driven mainly by biota factor.Keywords Arsenic Á Forms Á Arsenite Á Water quality parameters Arsenic (As) is a ubiquitous but toxic element. The range of background As levels in water is 0.1-80 lg L -1 . However, the elevation of As in groundwater due to the reduction and dissolution of As-containing minerals in alluvial strata occurs in some areas of the world, causing serious detriment to human health, mainly in India, Bangladesh and China (Mandal et al. 2007). Arsenic in drinking water has been legally restricted to within 10 lg L -1 by the WHO and China to protect human health (WHO 2003). Lakes act as watershed sinks, receiving both natural and anthropogenic sources of As (Nikolaidis et al. 2004). Arsenic in the water column is equilibrated between suspended particulates and water, with sorption and desorption reactions. These reactions are influenced by various factors, such as changes of temperature, pH and redox potential, organic degradation and other reduction reactions (Couture et al. 2010). The sorption and desorption of As in lake waters have been found to be concomitant with As oxidation/reduction in the outer sphere of particulates, causing the sorption/ desorption of As between the particulate and water phases (Gao et al. 2006). Dianchi, the sixth largest fresh water lake in China, is located near Kunming city, Yunnan province. The lake covers an area of 308.6 km 2 , with an average depth of 4.4 m and an elevation of 1,887.4 m, and is separated by a dam in the north, forming two basins as Caohai and Waihai (Fig. 1). The lake is in a hypereutrophic status, with severe algae blooms occurring annually over the past two decades. The nitrogen and phosphorus contents were found to decrease gradually from the north to south, which is consistent with the eutrophic status of the lake (Hu et al. 2006). Arsenic is a chemical analogue to phosphorus, and the relationship between phosphorus with eutrophication and the interaction of As and phosphorus has been documented in many lakes (Martin and Pedersen 2004;Rahman et al. 2008). Nevertheless, the As behavior in Lake Dianchi, especially its relationship with eutrophication, has rarely been documented to date. An investigation of As in Lake Dianchi may be helpful in understanding As behavior in hypereutrophic lakes. The objective of this study was to elucidate the spatial variation of As in relation to the eutrophic status of Lake Dianchi.

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Arsenic, iron and sulfur co-diagenesis in lake sediments

Cited by 130 publications

References 77 publications

Distributions, fluxes, and toxicities of heavy metals in sediment pore water from tributaries of the Ziya River system, northern China

Distributions, fluxes, and toxicities of heavy metals in sediment pore water from tributaries of the Ziya River system, northern China

Differentiation of concentration level of iron compounds in water reservoirs in subsidence depressions in the Katowice Upland

Arsenic Variation in Two Basins of Lake Dianchi

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