Distribution and mobility of selenium and other trace elements in shallow ground water of the western San Joaquin Valley, California

Deverel, Steven J.; Millard, Steven P.

doi:10.3133/ofr86538

Cited by 20 publications

(17 citation statements)

References 6 publications

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“…These results also are consistent with the 98 percent selenate found in the shallow ground water in this area (Deverel and Millard, 1988).…”

Section: Soluble Selenium Species In Unsaturated Soilssupporting

confidence: 90%

“…The regional distribution of selenium and the general geochemistry of shallow ground water was first described by Deverel and others (1984) and further analyzed by Deverel and Millard (1988). A general conclusion of these studies was that high selenium concentrations in shallow ground water occur only in Coast Range alluvial sediments, which is in agreement with the preceding assessment of selenium concentrations along the P6-P1 and P6-M1 sections.…”

Section: Areal Distribution Of Selenium In Shallow Ground Watersupporting

confidence: 71%

“…Selenium concentrations in shallow ground water in Coast Range sediments are highly correlated with salinity (Deverel and Millard, 1988;Deverel and Fujii, 1988). The dominant form of dissolved selenium is selenate.…”

Section: Relation Between Selenium and Salinitymentioning

confidence: 99%

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Preliminary assessment of sources, distribution, and mobility of selenium in the San Joaquin Valley, California

Gilliom¹

1989

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“…These results also are consistent with the 98 percent selenate found in the shallow ground water in this area (Deverel and Millard, 1988).…”

Section: Soluble Selenium Species In Unsaturated Soilssupporting

confidence: 90%

Section: Areal Distribution Of Selenium In Shallow Ground Watersupporting

confidence: 71%

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Preliminary assessment of sources, distribution, and mobility of selenium in the San Joaquin Valley, California

Gilliom¹

1989

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“…A number of laboratory and field Se transport studies were carried out to investigate Se transformations and transport (Ahlrichs and Hossner 1987;Alemi et al 1988;Deveral and Fujii 1988;Deveral and Milliard 1988;Fujii et al 1988;Sposito et al 1988;Mirbagheri et al 2008). In these studies, researchers examined the transport of several species of Se (selenate, selenite, selenomethionine) under a number of different conditions.…”

Section: −mentioning

confidence: 99%

Two-dimensional finite elements model for selenium transport in saturated and unsaturated zones

Tayfur

Tanji

Baba

2009

Environ Monit Assess

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A two-dimensional finite element model was developed to simulate species of selenium transport in two dimensions in both saturated and unsaturated soil zones. The model considers water, selenate, selenite, and selenomethionine uptake by plants. It also considers adsorption and desorption, oxidation and reduction, volatilization, and chemical and biological transformations of selenate, selenite, and selenomethionine. In addition to simulating water flow, selenate, selenite, and selenomethionine transport, the model also simulates organic and gaseous selenium transport. The developed model was applied to simulate two different observed field data. The simulation of the observed data was satisfactory, with mean absolute error of 48.5 μg/l and mean relative error of 8.9%.

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“…These plants could be useful both in managing the highly saline drainage water from farming operations and in the low salinity watersheds associated with point sources such as mining or sulfuric acid production plants. In the San Joaquin Valley (SJV) of California Se levels are as high as 2 mg l À1 Se in drainage water (Deverel et al, 1994), a concentration which potentially poses a health threat to humans and other animals (Lemly, 1997). These drainage waters are typically high in Na 2 SO 4 -dominant salts and are Se-laden, thus prohibiting their disposal into drainage channels and waterways.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Atriplex lines for selenium accumulation, salt tolerance and suitability for a key agricultural insect pest

Vickerman

Shannon

Bañuelos

et al. 2002

Environmental Pollution

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Five salt tolerant lines of the plant Atriplex were identified which were also resistant to beet armyworm, Spodoptera exigua. AbstractThirty Atriplex lines were examined for potential habitat improvement and phytoremediation of selenium (Se) contaminated sites. Studies were conducted to determine the biomass production, Se accumulation, and resistance of each line to the beet armyworm, Spodoptera exigua, an agriculturally important insect. Plants were tested using three salinity treatments: (1) control, no Se; (2) NaCl and CaCl 2 salts and 1 mg l À1 Se (12.7 mM) added as sodium selenate; and (3) iso-osmotic to treatment 2 containing high concentrations of sulfate and 1 mg l À1 Se added as sodium selenate. Insect bioassays measured survival, growth, and development. Atriplex patula, A. spongiosa 415862, A. hortensis, A. hortensis 379088 and A. hortensis 379092 were among the top biomass producers and Se accumulators, yet they exhibited significantly reduced insect growth, development, and survival. High background sulfate strongly reduced Se accumulation, suggesting that phytoremediation potential is greatest in saline areas having low to moderate sulfate levels. However, these lines grew well in high salinity soils, indicating possible use as a self-seeding cover crop to improve habitat. All plant lines grown in control and high sulfate salinity treatments are acceptable oviposition sites for S. exigua, indicating that these plants would help reduce populations of this key agricultural pest. #

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Distribution and mobility of selenium and other trace elements in shallow ground water of the western San Joaquin Valley, California

Abstract: Prepared in cooperation with the SAN JOAQUIN VALLEY DRAINAGE PROGRAM • !BR AV(sowv 014 t us 0 poN ,0w5T c'E' 54 Bureau of

Cited by 20 publications

References 6 publications

Preliminary assessment of sources, distribution, and mobility of selenium in the San Joaquin Valley, California

Preliminary assessment of sources, distribution, and mobility of selenium in the San Joaquin Valley, California

Two-dimensional finite elements model for selenium transport in saturated and unsaturated zones

Evaluation of Atriplex lines for selenium accumulation, salt tolerance and suitability for a key agricultural insect pest

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