Investigation of Selenium Sources Associated with Chronic Selenosis in Horses of Western Iowa

Witte, Scott T.; Will, Loren A.

doi:10.1177/104063879300500133

Cited by 9 publications

(3 citation statements)

References 11 publications

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“…Plants can accumulate Se from the impacted soils [93]. Plant accumulation and soil ingestion lead to Se bioaccumulation and Se poison in livestock and wildlife [94,95]. Similar to uranium and chromium, highvalent selenium species (SeO 4 −2 or Se 6+ and SeO 3 −2 or Se 4+ ) are more soluble and mobile in the natural environment and more toxic than the low-valent species such as Se 0 and Se −2 .…”

Section: Nanoscale Zero-valent Iron Particles (Nzvi)mentioning

confidence: 99%

Nanoenhanced Materials for Reclamation of Mine Lands and Other Degraded Soils: A Review

Liu

Lal

2012

Journal of Nanotechnology

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Successful mine soil reclamation facilitates ecosystem recovery, minimizes adverse environmental impacts, creates additional lands for agricultural or forestry uses, and enhances the carbon (C) sequestration. Nanoparticles with extremely high reactivity and deliverability can be applied as amendments to improve soil quality, mitigate soil contaminations, ensure safe land–application of the conventional amendment materials (e.g., manures and biosolids), and enhance soil erosion control. However, there is no report on using nanoenhanced materials for mine soil reclamation. Through reviewing the up-to-date research results on using environment-friendly nanoparticles for agricultural soil quality improvement and for contaminated soil remediation, this paper synthesizes that these nanomaterials with high potentials for mine soil reclamation include zeolites, zero-valent iron nanoparticles, iron oxide nanoparticles, phosphate-based nanoparticles, iron sulfide nanoparticles and C nanotubes. Transport of these particles in the environment and their possible ecotoxicological effects are also discussed. Additionally, this article proposes a practical and economical approach to applying nanotechnology for mine soil reclamation: adding small amounts of nanoparticles to the conventional soil amendment materials and then applying the mixtures for soil quality improvements. Hence the cost of using nanoparticles is reduced and the benefits of both nanoparticles and the conventional amendment materials are harnessed.

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Section: Nanoscale Zero-valent Iron Particles (Nzvi)mentioning

confidence: 99%

Nanoenhanced Materials for Reclamation of Mine Lands and Other Degraded Soils: A Review

Liu

Lal

2012

Journal of Nanotechnology

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“…The historic description of a necrotic hoof disease in horses by Marco Polo in the 13th century was suspected being a Se toxicosis, however, in 2008 a study investigating the local biogeochemistry formulates doubts on this theory and highlights toxic plants being the main reason for the symptoms described by Marco Polo [96]. Cases of natural chronic selenosis were reported from seleniferous areas in horses [97,98] and areas with Se accumulator plants in cattle [99]. Accidental ingestion of excessive Se concentrations via mineral supplements was described to cause an acute disease with high mortality in pigs [100] and horses [2].…”

Section: Selenium Toxicitymentioning

confidence: 95%

Selenium, copper and iron in veterinary medicine—From clinical implications to scientific models

Humann-Ziehank

2016

Journal of Trace Elements in Medicine and Biology

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“…Even as shale Se release kinetics are largely unknown, plants have been found to accumulate Se from the impacted soil (Mackowiak et al, 2004). Plant accumulation and soil ingestion lead to bioaccumulation in livestock and wildlife (Witte and Will, 1993; Thomas et al, 2005). Chronic toxicity in cattle may occur with intakes as low as 0.4 mg Se kg −1 body weight per day, and for sheep with intake as low as 0.08 mg Se kg −1 body weight per day (Puls, 1994).…”

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confidence: 99%

Soil Sulfur Amendments Suppress Selenium Uptake by Alfalfa and Western Wheatgrass

Mackowiak

Amacher

2008

J of Env Quality

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Selenium (Se) is a potential soil contaminant in many parts of the world where it can pose a health risk to livestock and wildlife. Phosphate ore mining in Southeast Idaho has resulted in numerous waste rock dumps revegetated with forages to stabilize the dumps and support grazing. Alfalfa (Medicago sativa L.), smooth brome (Bromus inermis Leyss.), and western wheat grass [Pascopyrum smithii (Rydb.) A. Löve] are the dominant forage species on these lands. To demonstrate the feasibility of using sulfur (S) as a soil amendment to restrict plant Se uptake, 3 kg pots containing 50:50 w/w soil and waste shale were uniformly mixed with 0, 0.5, 1.0, or 2.0 Mg ha(-1) S as either elemental S or gypsum. Pots were seeded with alfalfa or western wheat grass. Dry mass and tissue Se were monitored over several clippings. Soils were sampled at the conclusion of the study and analyzed for water-soluble, oxalate-extractable, and total Se. Sulfur amendments as either elemental S or gypsum at 1.0 Mg ha(-1) or greater equally suppressed Se uptake over 60% in both forage species. Alfalfa accumulated more Se than western wheat grass. Plant removal via successive clippings resulted in lower tissue Se accumulation over time than the use of S soil amendments alone. Alfalfa-planted soils contained lower water-soluble and oxalate-extractable Se than did the non-planted controls while western wheat grass-planted soils contained lower water-soluble Se. Applying S to these shale-based soils may be an economically viable option for treating Se-impacted, revegetated lands.

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Investigation of Selenium Sources Associated with Chronic Selenosis in Horses of Western Iowa

Cited by 9 publications

References 11 publications

Nanoenhanced Materials for Reclamation of Mine Lands and Other Degraded Soils: A Review

Nanoenhanced Materials for Reclamation of Mine Lands and Other Degraded Soils: A Review

Selenium, copper and iron in veterinary medicine—From clinical implications to scientific models

Soil Sulfur Amendments Suppress Selenium Uptake by Alfalfa and Western Wheatgrass

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