Lead-210 Derived Sedimentation Rates from a North Louisiana Paper-Mill Effluent Reservoir

Pizzolato, William N.; Hon, R. A. de

doi:10.1346/ccmn.1995.0430501

Cited by 5 publications

(2 citation statements)

References 21 publications

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“…We applied a linear regression model to deduce the average sedimentation rate 53 . As shown in Figure 7b , the deduced rate of sedimentation is 0.101 g cm −2 yr −1 .…”

Section: Methodsmentioning

confidence: 99%

Ecosystem regime change inferred from the distribution of trace metals in Lake Erie sediments

Yuan

Depew

Soltis-Muth

2014

Sci Rep

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Many freshwater and coastal marine ecosystems across the world may have undergone an ecosystem regime change due to a combination of rising anthropogenic disturbances and regional climate change. Such a change in aquatic ecosystems is commonly seen as shifts in algal species. But considerably less detail is known about the eutrophication history in terms of changes in algal productivity, particularly for a large lake with a great deal of spatial variability. Here we present an analysis of trace metals (Cu, Ni, Cd, and Pb) on a sediment core recovered from Lake Erie, off the Vermilion coast of northern Ohio, USA, to reconstruct the eutrophication history of the lake over the past 210 years. Following a slow eutrophication during European settlement, Lake Erie experienced a period of accelerated eutrophication, leading to an ecosystem regime transition into a eutrophic lake state in 1950. Our results suggested that the lake's biological productivity has ever since maintained fairly high even though a significant input reduction was realized from rigorous nutrient abatements that began as early as in 1969. This work underscored the role of in-lake biogeochemical cycling in nutrient dynamics of this already eutrophic lake.

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“…We applied a linear regression model to deduce the average sedimentation rate 53 . As shown in Figure 7b , the deduced rate of sedimentation is 0.101 g cm −2 yr −1 .…”

Section: Methodsmentioning

confidence: 99%

Ecosystem regime change inferred from the distribution of trace metals in Lake Erie sediments

Yuan

Depew

Soltis-Muth

2014

Sci Rep

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“…Excess 210 Pb is produced from decay of Rn in the atmosphere whereas decay of Rn in the soil release supported 210 Pb [32]. Additional of 210 Pb is considered to be excess to the normal amount of Pb supplied by the decay of 226 Ra, resulting from nuclear emission [33]. Excess 210 Pb can be delivered to the soil, rivers and lakes in similar way to that of 137 Cs [31].…”

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confidence: 99%

Use of 210Pb and 137Cs radionuclides as simple method of estimating sedimentation rates on reservoir

Selemani

2023

Arab Journal of Nuclear Sciences and Applications

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Reservoirs are important for flood control, production of hydroelectric power, fishing, water harvesting and storage. Climate is changing, population and anthropogenic activities are increasing which increase sedimentation rate to most of reservoirs reducing their capacity. With climate change in mind water are becoming scarce resources which need proper storage when available and suitable flood control in areas with unpredicted rainfall. Furthermore, population growth and increases energy demand suggesting that there is a need of sustainable management of dams so as to control flood, produce more hydroelectric power and store water for use in dry season. Sedimentation is one of the factors influencing storage capacity of the reservoir. Understanding sedimentation rate, source of sediment and carryout proper management measures is one among of the important methods to preserve dams. 137 Cs and 210 Pb are important radionuclides for investigating sedimentation rate in reservoir. The method has been used for more than two decades in developed countries with less use in developing countries. In this study a sediment core was sampled at the centre of Nyumba ya Mungu reservoir in Tanzania then the samples were transported to China for processing and analysis. High-purity Germanium detector was used to analyze 210 Pb and 137 Cs. The results showed that rate of sedimentation in the reservoir ranged from 0.21 to 0.65 cm/year with more sediment coming from Kikuletwa than Ruvu tributary. Proper utilization of this method can bring sustainable management of water, save communities from flood disaster and high production of hydroelectric power.

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Activation of gas bubble emissions indicated by the upward decreasing Lead-210 activity at a submarine mud volcano (TY1) offshore southwestern Taiwan

Hiruta

Yang

Lin

et al. 2017

Journal of Asian Earth Sciences

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Lead-210 Derived Sedimentation Rates from a North Louisiana Paper-Mill Effluent Reservoir

Cited by 5 publications

References 21 publications

Ecosystem regime change inferred from the distribution of trace metals in Lake Erie sediments

Ecosystem regime change inferred from the distribution of trace metals in Lake Erie sediments

Use of 210Pb and 137Cs radionuclides as simple method of estimating sedimentation rates on reservoir

Activation of gas bubble emissions indicated by the upward decreasing Lead-210 activity at a submarine mud volcano (TY1) offshore southwestern Taiwan

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