Metal and arsenic impacts to soils, vegetation communities and wildlife habitat in southwest Montana uplands contaminated by smelter emissions: I. Field evaluation

Galbraith, Hector; LeJeune, Katherine D.; Lipton, Joshua

doi:10.1002/etc.5620141111

Cited by 37 publications

(12 citation statements)

References 22 publications

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“…(Faustand and Christians 2000). Fourth, in view of the ecosystem, heavy metals could be transported and magnified in the food chain, and pose a potential hazard to human health (Galbraith et al 1995;Ginocchio 2000;Antoniadis and Mckinley 2003). Although rubbish compost is nutrient-enriched for plant requirements (Manna et al 2001), heavy metals in rubbish compost would result in their accumulation in plants and could affect plant growth.…”

Section: Discussionmentioning

confidence: 98%

Heavy Metal Accumulation and Ecological Responses of Turfgrass to Rubbish Compost with EDTA Addition

Duo

Gao

Zhao

2005

J Integrative Plant Biology

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Domestic rubbish compost is a complex-polluted system, containing multiple heavy metals, which limits its application. In the present study, Cr, Mn, Ni, Cu, Zn, Cd, and Pb accumulation and ecological responses of turfgrass to rubbish compost were investigated following the addition of EDTA. The results showed that the addition of EDTA significantly increased heavy metal accumulation in Lolium perenne L. and Festuca arundinacea L. Most heavy metal concentrations in L. perenne increased with increasing EDTA supply. The concentrations of Cr, Mn, Ni, Cu, and Cd in L. perenne were highest following the addition of 30 mmol/kg EDTA and the concentrations of Cr and Ni at this point reached concentrations of 1 914.17 and 521.25 µg/g, respectively. When the EDTA level was < 20 mmol/kg, the accumulation of most heavy metals in F. arundinacea increased with increasing EDTA supply, but showed a tendency to decrease at EDTA concentrations >20 mmol/kg. The highest concentrations of Mn, Ni, Cu, and Zn in F. arundinacea reached 268.01, 110.94, 161.52 and 1 354.97 µg/g, respectively, following the addition of 20 mmol/kg EDTA. The EDTA-induced increase in the accumulation of heavy metals in turfgrass was plantand metal-specific. L. perenne had a relatively high ability to accumulate Cr, Ni, and Zn. The highest Zn concentration was 2 979.58 µg/g and, following the addition of EDTA, the concentrations of the three metals were increased 26.23, 20.03, and 10.49-fold, respectively, compared with control. However, F. arundinacea showed a high ability to accumulate Cr, with the highest concentration (596.02 µg/g) seen following the addition of 30 mmol/kg EDTA; the concentration of Cr increased 15.51-fold compared with control. With EDTA addition, ecological responses of both turfgrass species showed that EDTA at concentrations <10 mmol/kg increased seed germination and aboveground net primary production (ANP) of L. perenne and slightly inhibited those of F. arundinacea, but EDTA at concentrations >20 mmol/kg inhibited these parameters significantly for both species. Moreover, EDTA increased the chlorophyll and proline content at all concentrations tested. On the basis of the synthetic remediation index, the optimal EDTA concentration for turfgrass remediation of heavy metals in compost is approximately 10 mmol/kg.

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Section: Discussionmentioning

confidence: 98%

Heavy Metal Accumulation and Ecological Responses of Turfgrass to Rubbish Compost with EDTA Addition

Duo

Gao

Zhao

2005

J Integrative Plant Biology

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“…Investigations over the last several decades (Mankovska and Steinnes 1995;Kozlowski 2000;Kozlov and Zvereva 2007) have demonstrated that forest ecosystems are vulnerable to human-induced environmental stresses, resulting in a progressive loss of biodiversity and general declines in forest health. Adverse impacts to the forest ecosystems lead to concomitant changes in the quality and extent of wildlife habitat (Galbraith et al 1995). Such studies indicate a large potential for anthropogenically caused changes in forest environments.…”

Section: Introductionmentioning

confidence: 99%

Effects of radioactive contamination on Scots pines in the remote period after the Chernobyl accident

et al. 2011

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A 6 year study of Scots pine populations inhabiting sites in the Bryansk region of Russia radioactively contaminated as a result of the Chernobyl accident is presented. In six study sites, (137)Cs activity concentrations and heavy metal content in soils, as well as (137)Cs, (90)Sr and heavy metal concentrations in cones were measured. Doses absorbed in reproduction organs of pine trees were calculated using a dosimetric model. The maximum annual dose absorbed at the most contaminated site was about 130 mGy. Occurrence of aberrant cells scored in the root meristem of germinated seeds collected from pine trees growing on radioactively contaminated territories for over 20 years significantly exceeded the reference levels during all 6 years of the study. The data suggest that cytogenetic effects occur in Scots pine populations due to the radioactive contamination. However, no consistent differences in reproductive ability were detected between the impacted and reference populations as measured by the frequency of abortive seeds. Even though the Scots pine populations have occupied radioactively contaminated territories for two decades, there were no clear indications of adaptation to the radiation, when measured by the number of aberrant cells in root meristems of seeds exposed to an additional acute dose of radiation.

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“…Cadmium (Cd) and arsenic (As) are two of the most common global environmental pollutants, which enter the environment through metal mining and smelting activities, industrial and urban waste, combustion of fossil fuels, and application of agricultural fertilizers (Sneller et al, 2000;Galbraith et al, 1995;Maclean and Langille, 1981;Abedin et al, 2002aAbedin et al, , 2002b). The Cd-or As-polluted water for drinking and crop irrigation causes serious health problems to human and other organisms (Watanabe et al, 2000;Chen et al, 1995;Liao et al, 2005;Mandal et al, 1997;Quaghebeur and Rengel, 2003).…”

Section: Introductionmentioning

confidence: 99%

Genotypic Difference in Arsenic and Cadmium Accumulation by Rice Seedlings Grown in Hydroponics

Zhang

Duan

2008

Journal of Plant Nutrition

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Genotypic differences in arsenic (As) and cadmium (Cd) uptake and their translocation within rice seedlings grown in solution culture were investigated. Arsenic uptake and its translocation differed significantly between eight cultivars. The largest shoot and root As concentrations were found in cultivar 'TN1' and 'ZYQ8', while cultivar 'JX-17' had the lowest As concentration. Arsenic concentration in shoot or root of 'JX-17' was about 50% of that in cultivar 'ZYQ8'. Specific Arsenic uptake (SAU) was found significantly different between rice cultivars, which was about 2-fold higher of 'ZYQ8' than that of 'JX-17'. The Cd accumulation also differed significantly between cultivars. Rice cultivar 'JX-17' had the highest ability in Cd uptake, but the lowest ability in Cd translocation from root to shoot. The transfer factor (TF) of Cd had an important effect on Cd accumulation by rice seedlings. Arsenic can competitively inhibit P uptake by rice seedlings, P concentrations in shoots, or roots treated with As were significantly lower than those without As addition. However, the concentrations of P and As were positively correlated within these genotypes. The Cd immobilization by cell wall was an important mechanism for Cd detoxification. The cell wall bound 21-44% of total Cd in shoots and 25-59% of total Cd in roots of these tested genotypes. The genotypic differences in As and Cd uptake and translocation within rice seedlings provide the possibility of selecting and breeding genotypes and /or cultivars with reduced levels of As and Cd in rice grains.

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Metal and arsenic impacts to soils, vegetation communities and wildlife habitat in southwest Montana uplands contaminated by smelter emissions: I. Field evaluation

Cited by 37 publications

References 22 publications

Heavy Metal Accumulation and Ecological Responses of Turfgrass to Rubbish Compost with EDTA Addition

Heavy Metal Accumulation and Ecological Responses of Turfgrass to Rubbish Compost with EDTA Addition

Effects of radioactive contamination on Scots pines in the remote period after the Chernobyl accident

Genotypic Difference in Arsenic and Cadmium Accumulation by Rice Seedlings Grown in Hydroponics

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