Plant uptake assay to determine bioavailability of inorganic contaminants

Dreesen, David R.; Cokal, E.J.

doi:10.1007/bf00587466

Cited by 7 publications

(6 citation statements)

References 5 publications

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“…The majority of the time for this study, heavy metals were found in the greatest amounts in soil > forage roots > above-ground forage parts, respectively. The current study mean Se soil concentrations were equivalent or exceeded the exposed soil and were greater than the control concentrations reported by Dreesen and Cokal (control: 0.7 mg/kg; tailings soil: 2.3 mg/kg) [ 32 ]. The above-ground forage parts contained the least amount of heavy metals, except for Mo and Cd.…”

Section: Discussioncontrasting

confidence: 51%

Uranium and Associated Heavy Metals in Ovis aries in a Mining Impacted Area in Northwestern New Mexico

Samuel-Nakamura

Robbins

Hodge

2017

IJERPH

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The objective of this study was to determine uranium (U) and other heavy metal (HM) concentrations (As, Cd, Pb, Mo, and Se) in tissue samples collected from sheep (Ovis aries), the primary meat staple on the Navajo reservation in northwestern New Mexico. The study setting was a prime target of U mining, where more than 1100 unreclaimed abandoned U mines and structures remain. The forage and water sources for the sheep in this study were located within 3.2 km of abandoned U mines and structures. Tissue samples from sheep (n = 3), their local forage grasses (n = 24), soil (n = 24), and drinking water (n = 14) sources were collected. The samples were analyzed using Inductively Coupled Plasma-Mass Spectrometry. Results: In general, HMs concentrated more in the roots of forage compared to the above ground parts. The sheep forage samples fell below the National Research Council maximum tolerable concentration (5 mg/kg). The bioaccumulation factor ratio was >1 in several forage samples, ranging from 1.12 to 16.86 for Mo, Cd, and Se. The study findings showed that the concentrations of HMs were greatest in the liver and kidneys. Of the calculated human intake, Se Reference Dietary Intake and Mo Recommended Dietary Allowance were exceeded, but the tolerable upper limits for both were not exceeded. Food intake recommendations informed by research are needed for individuals especially those that may be more sensitive to HMs. Further study with larger sample sizes is needed to explore other impacted communities across the reservation.

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Section: Discussioncontrasting

confidence: 51%

Uranium and Associated Heavy Metals in Ovis aries in a Mining Impacted Area in Northwestern New Mexico

Samuel-Nakamura

Robbins

Hodge

2017

IJERPH

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“…All U concentrations were substantially below values discussed in the National Academy of Sciences (1980) report ; however, the mean concentrations in treatment 3 (the undiluted contaminated water), saltbush at 1.62 mg kg ] 1 and Sudan grass at 0.812 mg kg ] 1 , were considerably higher than the 0.063 mg kg ] 1 reported by Dreesen and Cokal (1984) for Atriplex grown on contaminated soil. The Sudan grass concentration ratios for treatment 3 tissues were 7.1 compared to the irriga± tion water concentrations, and 31 with respect to soil concentrations.…”

Section: Tissue Concentrationscontrasting

confidence: 66%

“…Both plant tissues were safely below the most restrictive value reported by National Academy of Sci± ences (1980). Se tissue concentrations for both saltbush and Sudan grass were below levels reported by Watson et al (1994) and Dreesen and Cokal (1984), as well as the National Academy of Sciences recommended concentrations. Total S concentrations were also lower than the Watson et al (1994) results.…”

Section: Tissue Concentrationscontrasting

confidence: 46%

“…Tissue was signi cantly greater for treatment 2 (P , 0.05), and treatment 3 was NO 3 ] ± N indistinguishab le between 1 and 2 (Table 5). M ean saltbush M n concentrations were considerably less than found by Dreesen and Cokal (1984) and within the range reported by Watson et al (1994) and, in any event, well below phytotoxicity levels (National Academy of Sciences, 1980 ;Adriano, 1986). The tissue concentrations were above the 25 mg kg ] 1 de ± ciency values reported by Tisdale et al (1985).…”

Section: Tissue Concentrationssupporting

confidence: 46%

“…M o in Sudan grass was slightly above, and saltbush somewhat less than, the concentration found by Dreesen and Cokal (1984) for Atriplex. Both plant tissues were safely below the most restrictive value reported by National Academy of Sci± ences (1980).…”

Section: Tissue Concentrationsmentioning

confidence: 55%

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Effect of Irrigation Water Contaminated with Uranium Mill Tailings on Sudan Grass, Sorghum vulgare var. sudanense, and Fourwing Saltbush, Atriplex canescens

Baumgartner

Glenn

Moss

et al. 2000

Arid Soil Research and Rehabilitation

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A greenhouse experiment was carried out to estimate the e ects of irrigation water quality on chemical uptake and productivity of Sudan grass (Sorghum vulgare var. sudanense) and fourwing saltbush (Atriplex canescens). W ater and soil were obtained from an inactive U ore processing site near T uba City, Arizona. T wo observation wells provided the irrigation water. One was located upgradient from the contaminated site, and was located in the center of the plume downgradient from the area contaminated by the milling operations. A 50/50 mix of the two well waters was used as a third treatment. Concentrations of Se and U in aboveground tissues of saltbush were signi cantly (P , 0.05) elevated when irrigated with the undiluted contaminated water, but not to unacceptable levels. In the case of Sudan grass, Mo, Se, U, and S were signi cantly (P , 0.05) elevated in the contaminated NO 3 ] ± N, water treatment, and all except were elevated with the diluted contami± NO 3 ] ± N nated water, but again within acceptable limits. Saltbush productivity was not sig± ni cantly (P . 0.05) a ected by the three irrigation treatments. Sudan grass

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Decontamination of Radioactive-Contaminated Soils: Current Perspective

Abdel-Sabour

2011

Environmental Pollution

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Plant uptake assay to determine bioavailability of inorganic contaminants

Cited by 7 publications

References 5 publications

Uranium and Associated Heavy Metals in Ovis aries in a Mining Impacted Area in Northwestern New Mexico

Uranium and Associated Heavy Metals in Ovis aries in a Mining Impacted Area in Northwestern New Mexico

Effect of Irrigation Water Contaminated with Uranium Mill Tailings on Sudan Grass, Sorghum vulgare var. sudanense, and Fourwing Saltbush, Atriplex canescens

Decontamination of Radioactive-Contaminated Soils: Current Perspective

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