Correlation of natural and technogenic mercury sources in the Baikal polygon, Russia

Koval, P. V.; Kalmychkov, G. V.; Gelety, V. F.; Леонова, Г.А.; Medvedev, V. I.; Andrulaitis, L. D.

doi:10.1016/s0375-6742(99)00041-2

Cited by 26 publications

(8 citation statements)

References 7 publications

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“…These were initially interpreted as tracers of tectonic activity along a NW-SE striking major boundary within the OCVB and a fault system associated with the Malyi-Chaun graben zone along the southern shore. Similar fault-related mercury anomalies in soils have also been reported from the Baikal Rift Zone (Koval et al, 2006(Koval et al, , 1999, and can presumably be traced back to tectonically-driven mercury mobilization as described for Hg deposits in Spain (e.g. Jébrak and Hernandez, 1995).…”

Section: Indicators Of Tectonic Activitysupporting

confidence: 72%

Modern sedimentation patterns in Lake El'gygytgyn, NE Russia, derived from surface sediment and inlet streams samples

et al. 2013

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Abstract. Lake El'gygytgyn/NE Russia holds a continuous 3.58 Ma sediment record, which is regarded as the most longlasting climate archive of the terrestrial Arctic. Based on multi-proxy geochemical, mineralogical, and granulometric analyses of surface sediment, inlet stream and bedrock samples, supplemented by statistical methods, major processes influencing the modern sedimentation in the lake were investigated. Grain-size parameters and chemical elements linked to the input of feldspars from acidic bedrock indicate a windinduced two-cell current system as major driver of sediment transport and accumulation processes in Lake El'gygytgyn. The distribution of mafic rock related elements in the sediment on the lake floor can be traced back to the input of weathering products of basaltic rocks in the catchment. Obvious similarities in the spatial variability of manganese and heavy metals indicate sorption or co-precipitation of these elements with Fe and Mn hydroxides and oxides. But the similar distribution of organic matter and clay contents might also point to a fixation to organic components and clay minerals. An enrichment of mercury in the inlet streams might be indicative of neotectonic activity around the lake. The results of this study add to the fundamental knowledge of the modern lake processes of Lake El'gygytgyn and its lakecatchment interactions, and thus, yield crucial insights for the interpretation of paleo-data from this unique archive.

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Section: Indicators Of Tectonic Activitysupporting

confidence: 72%

Modern sedimentation patterns in Lake El'gygytgyn, NE Russia, derived from surface sediment and inlet streams samples

et al. 2013

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“…The results are indeed consistent with observation from studies elsewhere, where it has long been recognised that Hg is more efficiently transferred from water to bottom sediments [17][18][19]. Such rapid transfer is possibly through mechanisms such as sorption on suspended or bed load material, clay and organic material [20].…”

Section: Containing Widespread Contamination In the Basinsupporting

confidence: 90%

“…Such rapid transfer is possibly through mechanisms such as sorption on suspended or bed load material, clay and organic material [20]. This is supported by the study of Hg speciation in bottom sediments of water reservoirs, which has shown that physically sorbed admixture is the predominant form of Hg occurrence in bottom sediments [17]. Such forms of Hg exhibit weak bonds and can easily be extracted from the sediments under conditions of rainstorms resulting in seasonal flushing of doses of Hg into water [20].…”

Section: Containing Widespread Contamination In the Basinmentioning

confidence: 94%

Evaluation of Sources and Options for Possible Clean up of Anthropogenic Mercury Contamination in the Ankobra River Basin in South Western Ghana

Akabzaa¹,

Yidana²

2011

JEP

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“…The analytical method utilised showed that the content of mercury in Irkutsk Reservoir sediments did not exceed 1 ppm, but the geochemical background for this metal is much lower than this threshold. Koval et al (1999) demonstrated that there was a danger of mercury pollution in the Irkutsk Reservoir region. They found that the primary sources of mercury were industrial plants of the Irkutsk-Cheremkhovo Industrial Region, including the nearby gold mines.…”

Section: Resultsmentioning

confidence: 99%

“…The area of southern Lake Baikal is exposed to the influx of pollutants emitted in the nearby Irkutsk-Cheremkhovo Industrial Region and in other industrial centres in the southern part of Eastern Siberia (Koval et al, 1999). Pollutants both drop directly onto the water surface and onto the catchment area from which they are washed away or migrate together with ground water to Lake Baikal and the Irkutsk Reservoir.…”

Section: Resultsmentioning

confidence: 99%

Accumulation of heavy metals in the bottom sediments of the Irkutsk Reservoir

Jaguś

Khak

Rzętała

2013

IJENVH

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The chemical composition of the bottom sediment, and more particularly the heavy metals content, reflects human developments and impacts on the catchment and reservoir's natural environment. The bottom sediments of the reservoir retained by the Irkutsk Dam have been analysed. The reservoir is mainly supplied by water from Lake Baikal. The following amounts of heavy metals have been found in the sediment samples analysed: cadmium -below detection threshold (<0.5 ppm), cobalt -from 16 ppm to 23 ppm, chromium -from 104 ppm to 243 ppm, copper -from 21 ppm to 35 ppm, mercury -below detection threshold (<1 ppm), molybdenumbelow detection threshold (<2 ppm), nickel -from 44 ppm to 80 ppm, lead -from 13 ppm to 17 ppm and zinc -from 73 ppm to 98 ppm. Cobalt, chromium and nickel contents exceeded the natural geochemical background level. This may indicates anthropogenic impacts on the reservoir's geosystem.Reference to this paper should be made as follows: Jagus, A., Khak, V., Rzetala, M.A. and Rzetala, M. (2013) 'Accumulation of heavy metals in the bottom sediments of the Irkutsk Reservoir', Int.

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Correlation of natural and technogenic mercury sources in the Baikal polygon, Russia

Cited by 26 publications

References 7 publications

Modern sedimentation patterns in Lake El'gygytgyn, NE Russia, derived from surface sediment and inlet streams samples

Modern sedimentation patterns in Lake El'gygytgyn, NE Russia, derived from surface sediment and inlet streams samples

Evaluation of Sources and Options for Possible Clean up of Anthropogenic Mercury Contamination in the Ankobra River Basin in South Western Ghana

Accumulation of heavy metals in the bottom sediments of the Irkutsk Reservoir

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