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linking selenium sources to ecosystems mining

Linking Selenium Sources to Ecosystems: Mining - USGS

2021-8-17  Thus, mining of coal seams and their associated waste rock are primary geologic selenium sources that have the potential to affect aquatic ecosystems. Selenium release to the environment during coal burning for power generation can be direct during combustion or indirect from disposal of solid combustion waste

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Linking Selenium Sources to Ecosystems: Refining

2021-6-6  Five oil refineries process crude oil and discharge selenium (Se) to the San Francisco Bay-Delta Estuary (Bay-Delta) (Figures 1 and 2). Organic-rich marine basins are the primary source of elevated concentrations of Se in crude oils (see Mining page).

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Linking Selenium Sources to Ecosystems: Local and Global ...

2021-8-24  The sources, biogeochemistry, and ecotoxicology of selenium (Se) combine to produce a widespread potential for ecological risk such as deformities in birds and fish.

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Linking Selenium Sources to Ecosystems: Modeling

2021-5-27  The linked approach illustrates that environmentally safe dissolved selenium concentrations will differ among ecosystems depending on the ecological pathways and biogeochemical conditions in that system (Figure 3). Uncertainties and model sensitivities can be directly illustrated by varying exposure scenarios based on site-specific knowledge.

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Linking Selenium Sources to Ecosystems: Irrigation

2021-6-22  Selenium, as selenate, was ultimately found weathered with sulfur from marine sources in soluble sodium and magnesium sulfate salts, which are concentrated by evaporation on farmland soils.

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Linking selenium sources to ecosystems: San Francisco Bay ...

Marine sedimentary rocks of the Coast Ranges contribute selenium to soil, surface water, and ground water in the western San Joaquin Valley, California. Irrigation funnels selenium into a network of subsurface drains and canals. Proposals to build a master drain (i.e., San Luis Drain) to discharge into the San Francisco Bay-Delta Estuary remain as controversial today as they were in the 1950s ...

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Linking Selenium Sources to Ecosystems: San Francisco Bay ...

2016-11-29  Linking Selenium Sources to Ecosystems: San Francisco Bay-Delta Model. This fact sheet is available as a pdf. Marine sedimentary rocks of the Coast Ranges contribute selenium to soil, surface water, and ground water in the western San Joaquin Valley, California. Irrigation funnels selenium

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Linking Selenium Sources to Ecosystems: San Francisco

2005-3-24  discharge selenium to the Bay-Delta, although those discharges have declined in recent years. To understand the effects of changing selenium inputs, scientists have developed the Bay-Delta Selenium Model. U.S. Department of the Interior U.S. Geological Survey Fact Sheet 2004-3091 August 2004 Linking Selenium Sources to Ecosystems:

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Chapter 16 Selenium loading through the Blackfoot River ...

2004-1-1  Li[e Cycle of the Phosphoria Formation: From Deposition to Post-Mining Environment Edited by James R. Hein Handbook of Exploration and Environmental Geochemistry, Vol. 8 (M. Hale, Series Editor) Published by Elsevier B.V. Chapter 16 SELENIUM LOADING THROUGH THE BLACKFOOT RIVER WATERSHED: LINKING SOURCES TO ECOSYSTEMS T.S. PRESSER, M. HARDY, M.A. HUEBNER and P.J.

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Linking selenium biogeochemistry to the sulfur-dependent ...

It is widely distributed in the environment because it has been detected in rocks, sediments, soils and waters. Other sources of arsenic in the nature are human activities such as mining, waste ...

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Linking selenium sources to ecosystems: San Francisco Bay ...

Marine sedimentary rocks of the Coast Ranges contribute selenium to soil, surface water, and ground water in the western San Joaquin Valley, California. Irrigation funnels selenium into a network of subsurface drains and canals. Proposals to build a master drain (i.e., San Luis Drain) to discharge into the San Francisco Bay-Delta Estuary remain as controversial today as they were in the 1950s ...

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Linking selenium sources to ecosystems [electronic ...

2004, Linking selenium sources to ecosystems [electronic resource] : San Francisco Bay-Delta Model / [Theresa S. Presser and Samuel N. Luoma] U.S. Dept. of the Interior, U.S. Geological Survey [Reston, Va.] Wikipedia Citation. Please see Wikipedia's template documentation

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Selenium: environmental significance, pollution, and ...

Selenium is an essential trace element needed for all living organisms. Despite its essentiality, selenium is a potential toxic element to natural ecosystems due to its bioaccumulation potential. Though selenium is found naturally in the earth's crust, especially in carbonate rocks and volcanic and

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Selenium loading through the Blackfoot River watershed ...

The upper Blackfoot River watershed in southeast Idaho receives drainage from 11 of 16 phosphate mines that have extracted ore from the Phosphoria Formation, three of which are presently active. Toxic effects from selenium (Se), including death of livestock and deformity in aquatic birds, were documented locally in areas where phosphatic shales are exposed (Piper et al., 2000; Presser et al ...

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Linking selenium biogeochemistry to the sulfur-dependent ...

It is widely distributed in the environment because it has been detected in rocks, sediments, soils and waters. Other sources of arsenic in the nature are human activities such as mining, waste ...

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Selenium Assessment in Aquatic Ecosystems SpringerLink

Selenium is a naturally occurring trace element that can become concentrated and released by industrial, agricultural, petrochemical and mining activities. At concentrated levels it is toxic and has polluted ecosystems around the world. This book will serve as a comprehensive practical handbook for everyone dealing with selenium in aquatic ...

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Selenium: environmental significance, pollution, and ...

2016-9-1  Selenium (Se 79 34) is an essential element in living organisms.It is the 30th most abundant naturally occurring metalloid element on the Earth's crust. Selenium is present in the earth's crust at an estimated amount of 0.05–0.5 mg Se kg − 1 (Lemly, 2004), with total selenium concentrations in rocks amounting to 40% of the total earth's crust found mainly in sandstone, quartzite and ...

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From Deposition to the Post-Mining ... - ScienceDirect

Chapter 16 Selenium loading through the Blackfoot River watershed: Linking sources to ecosystems T.S. Presser, M. Hardy, M.A. Huebner, P.J. Lamothe Pages 437-466

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Minimal ecosystem uptake of selenium from Westland

Request PDF Minimal ecosystem uptake of selenium from Westland petrels, a forest-breeding seabird Endemic Westland petrels (Procellaria westlandica) are a remnant of extensive seabird ...

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Selenium contamination, consequences and remediation ...

2018-7-1  As is known to all, selenium (Se) is an essential micronutrient for the creature and it is good for our health at low concentration. However, excessive Se in the environment causes serious pollution in soil, atmosphere and water, and brings severe risk and damage to human health (Sakamoto et al., 2012).Industrial and agricultural activities are the dominant anthropogenic sources of Se pollution.

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Selenium: environmental significance, pollution, and ...

Selenium is an essential trace element needed for all living organisms. Despite its essentiality, selenium is a potential toxic element to natural ecosystems due to its bioaccumulation potential. Though selenium is found naturally in the earth's crust, especially in carbonate rocks and volcanic and

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Aquatic Life Criterion - Selenium US EPA

2021-8-20  Selenium can be released into water resources by natural sources via weathering and by anthropogenic sources, such as surface mining, coal-fired power plants, and irrigated agriculture. How does Selenium Affect Aquatic Life? Selenium is a nutritionally essential element for animals in small amounts, but toxic at higher concentrations.

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Linking selenium biogeochemistry to the sulfur-dependent ...

It is widely distributed in the environment because it has been detected in rocks, sediments, soils and waters. Other sources of arsenic in the nature are human activities such as mining, waste ...

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A methodology for ecosystem‐scale modeling of selenium ...

2018-5-14  Sources of selenium. Knowledge of a dissolved Se concentration in a water body is a crucial first step in understanding the potential for adverse ecological effects. Documenting how different sources and processes contribute to that concentration is also essential (Figure 1).

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Minimal ecosystem uptake of selenium from Westland

Request PDF Minimal ecosystem uptake of selenium from Westland petrels, a forest-breeding seabird Endemic Westland petrels (Procellaria westlandica) are a remnant of extensive seabird ...

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Environmental Sources, Speciation, and Partitioning of ...

One selenium-impacted sediment contained 7.1 mg/kg (dw) Se8, corresponding to 41% of its total selenium and as much as 50% of its total elemental selenium. This is the first time that Se8 has been ...

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Food Chain Transfer of Selenium in Lentic and Lotic ...

Damming of river systems has the potential to increase Hg and Se accumulation in stream food webs by linking lotic ecosystems to lentic habitats that often serve as sources of bioavailable forms ...

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Monitoring and analysis of selenium as an emerging ...

Request PDF On Jan 1, 2020, Selma Etteieb and others published Monitoring and analysis of selenium as an emerging contaminant in mining industry: A critical review Find, read and cite all the ...

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(PDF) What You Need to Know about Selenium Dianne F ...

Selenium is sequentially reduced to Figure 3.3 is a conceptual model of Se dynamics and transfer in aquatic ecosystems. 2 before it is ultimately incorporated into the amino acids selenocysteine and Se The model illustrates the steps that determine Se effects in ecosystems. Those steps selenomethionine (Sunde 1997).

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Mining our green future Nature Reviews Materials

2021-5-24  Mining our green future. The green energy revolution is heavily reliant on raw materials, such as cobalt and lithium, which are currently mainly sourced by mining. We must carefully evaluate ...

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