Evaluation of Different Extraction Methods for the Assessment of Heavy Metal Bioavailability in Various Soils

Soriano-Disla, José M.; Speir, T. W.; Gómez, Ignacio; Clucas, Lynne; McLaren, R. G.; Pedreño, José Navarro

doi:10.1007/s11270-010-0400-6

Cited by 76 publications

(40 citation statements)

References 54 publications

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“…Our results are similar to those reported by Soriano-Disla et al [29] who reported good correlation between effective concentrations of Pb and its accumulation in plants. However, in highly contaminated soils, C E did not provide good predictions for the bioaccumulation of Pb.…”

Section: Resultssupporting

confidence: 93%

“…Using DIFS numerical model, the values of R diff calculated for soils from FE ranged between 0.0302 – 0.0316 and between 0.0219 – 0.0310 in BE. The effective concentrations ( C E ) of Pb in the unpolluted area ranged between 19.2 – 194 μg L −1 (average 37.3 μg L −1 ) in BE, being in the same order of magnitude with those reported by Soriano-Disla et al [29] for Pb in uncontaminated soils. In the polluted soil from FE, C E values ranged between 1050 – 7110 μg L −1 (average 3910 μg L −1 ), being about 100 times higher than in unpolluted area.…”

Section: Resultssupporting

confidence: 80%

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Real and simulated bioavailability of lead in contaminated and uncontaminated soils

Șenilă

2014

J Environ Health Sci Engineer

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BackgroundLead (Pb) is a toxic element that occurs in elevated concentrations in soils, mostly as a result of anthropogenic activities. This study assess the Pb bioavailability in soils from two areas with different contamination level using Diffusive Gradients in Thin-Films (DGT) technique, single extractions and metal contents of vegetables grown on contaminated soils.ResultsIn the area situated far from mining and smelting activities, the pseudo total Pb concentration (12 – 51 mg kg−1 dw) was found to be comparable to that normally found in unpolluted areas. In the area from the vicinity of the Pb smelter very high concentrations of pseudo-total Pb (850 – 9300 mg kg−1 dw) were found. The average concentrations of Pb accumulated in onion, garlic, carrot, and parsley grown on this contaminated soils were 18, 48, 38 and 91 mg kg−1 dw, respectively, and represent a risk factor for the consumers.ConclusionsThe present study demonstrates the utility of DGT technique for the assessment of Pb bioavailability, since, generally, better correlations are obtained between the effective Pb concentration and Pb concentration in vegetables than for bioavailable Pb determined by chemical extractions and Pb concentration in vegetables.

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Section: Resultssupporting

confidence: 93%

Section: Resultssupporting

confidence: 80%

Real and simulated bioavailability of lead in contaminated and uncontaminated soils

Șenilă

2014

J Environ Health Sci Engineer

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“…Soil urease and phosphatase activities were often impacted by urea and organic material addition. This study showed that soil urease activities increased after urea was added and phosphatase activities were enhanced due to chicken manure addition, indicating their being environment-friendly (Soriano-Disla et al 2010). …”

Section: Resultsmentioning

confidence: 84%

“…Means within the same Cd treatments followed by the same letter (a-c) were not significantly different at p < 0.05 Means in the same Cd treatment columns followed by different letters were significantly different at p<0.05 EF enhancement factor, TF translocation factor the addition of fertilizer enhanced the soils nutritional indices without altering soil Cd concentration. The soil microorganism count and some enzyme activities reflect Cd as toxic to soil biology (Soriano-Disla et al 2010). Bacteria, fungi, and actinomycete counts were determined in Table 2.…”

Section: Resultsmentioning

confidence: 99%

Fertilizer amendment for improving the phytoextraction of cadmium by a hyperaccumulator Rorippa globosa (Turcz.) Thell

et al. 2011

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Purpose Two main pathways of phytoremediation of heavy metal-contaminated soils are phytostabilization and phytoextraction. Some soil amendments can strengthen phytostabilization or phytoextraction through either reducing heavy metal bioavailability in soil or increasing the heavy metal accumulation capacity of the hyperaccumulator (enhancing heavy metal concentration or shoot biomass of the hyperaccumulator). Urea and chicken manure are often used as fertilizers. This research will explore their effects on a newly found hyperaccumulator, Rorippa globosa (Turcz.) Thell., phytoremediating cadmium (Cd). Materials and methods Pot culture experiment was conducted to study the accumulation characteristics of R. globosa at different Cd contamination concentrations under one fertilizer level (1 g kg −1 for urea and 100 g kg −1 for chicken manure), as well as the same Cd dose (20 mg kg −1 ) under different fertilizer doses. Cd was artificially spiked at 2.5, 5, 10, and 20 mg kg −1 . Urea was amended at 0.5, 1, and 2 g kg −1 , while chicken manure was supplemented at 50, 100, and 200 g kg −1 . The heavy metal concentration in soil and plant samples was determined using an atomic absorption spectrophotometer. pH, N, P, K, and so on in soil samples were determined by normal method. Results and discussionThe results showed that urea application did not affect the Cd concentrations in root, stem, leaf, inflorescence, and shoot of R. globosa, but chicken manure significantly decreased (p<0.05) them by 28.4%, 29.3%, 30.8%, 24.9%, and 28.3%, respectively, owing to decreased extractable Cd in soil. Thus, strengthening the capacity (Cd accumulation in plant shoot, micrograms per pot) of urea was higher than that of chicken manure, though both shoot biomasses increased by one to threefold. Furthermore, the addition of urea and chicken manure increased the organic material, nitrogen, phosphorus and potassium, the microorganism count, urease, and the phosphatase activities of soil, indicating their ecofriendly function. Urea is ideal for optimizing phytoextraction of Cd using R. globosa, while chicken manure is appropriate for phytostabilization. Conclusions Although chicken manure addition significantly increased (p<0.05) Cd extraction capacity (micrograms per pot) of R. globosa, extractable Cd concentration in soil was significantly decreased (p<0.05). In contrast, urea addition had no impact on soil extractable Cd and significantly increased Cd extraction capacity (micrograms per pot) of R. globosa by growth stimulation. Thus, this study demonstrates the effect of fertilizer amendment in enhancing phytoextraction using a Cd hyperaccumulator, R. globosa, only by increased plant biomasses. Furthermore, chicken manure can strengthen phytostabilization because it decreased extractable Cd in soil.

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“…In previous decades, bioavailability of target elements in sediment has most often been measured by ex situ chemical methods, such as sequential extraction and single-step extraction methods (Menzies et al, 2007;Soriano-Disla et al, 2010). These equilibrium-based methods are based on operationally defined procedures, and they provide information on the concentrations of mobile or potentially mobile species in sediment that are available to biota.…”

Section: Introductionmentioning

confidence: 99%

In situ high-resolution evaluation of labile arsenic and mercury in sediment of a large shallow lake

Wang

Yao

Wang

et al. 2016

Science of The Total Environment

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Evaluation of Different Extraction Methods for the Assessment of Heavy Metal Bioavailability in Various Soils

Cited by 76 publications

References 54 publications

Real and simulated bioavailability of lead in contaminated and uncontaminated soils

Real and simulated bioavailability of lead in contaminated and uncontaminated soils

Fertilizer amendment for improving the phytoextraction of cadmium by a hyperaccumulator Rorippa globosa (Turcz.) Thell

In situ high-resolution evaluation of labile arsenic and mercury in sediment of a large shallow lake

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