Soil heavy-metal speciation and wheat phytotoxicity in the vicinity of an abandoned lead–zinc mine in Shangyu City, eastern China

Cui, Yanshan; Du, Xin

doi:10.1007/s12665-010-0519-1

Cited by 28 publications

(12 citation statements)

References 31 publications

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“…As a whole, Pb contents in vegetables were found to be correlated (r = 0.819 at P \ 0.01) with the total Pb in soils for all the measured samples. Although the assimilation of Pb in plants is correlated with soil properties such as pH value and SOM according to the previous reports (Bosso and Enzweiler 2008;Cui and Du 2011;Fitamo et al 2007), no distinct correlation between the soil pH values or the SOM contents and the Pb contents of vegetables was observed in the present study.…”

Section: Assessment Of Total Pb In Soils and Vegetablescontrasting

confidence: 63%

Lead contamination and its potential sources in vegetables and soils of Fujian, China

Huang

Chen

et al. 2011

Environ Geochem Health

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Lead (Pb) contents and partition in soils collected from eleven vegetable-growing lands in Fujian Province, China, were investigated using a modification of the BCR (Community Bureau of Reference) sequential extraction procedure coupled with the Pb isotope ratio technique. Pb contents in Chinese white cabbage (B. Chinensis L.) grown on the lands for this study were also measured. Results showed that Pb concentrations in fifty samples of topsoil ranged from 456 to 21.5 mg kg(-1), with each mean concentration of six sampling lands exceeding the national standard (50 mg kg(-1)); while Pb concentrations in edible portions of thirty-two vegetable samples ranged from 0.009 to 2.20 mg kg(-1), with four sampling sites exceeding the national sanitary standard (0.2 mg kg(-1)). A significant correlation (r = 0.971, P < 0.01) of Pb contents in the acid-extractable fractions by BCR approach and the vegetables was observed, which indicates that the acid-extractable Pb is useful for evaluating the metal bioavailability for plants and potential risk for human health in soils. The determination of lead isotope ratios in different chemical forms of soils by BCR sequential extraction procedures provides useful information on the Pb isotopic composition associated with different soil fractions (especially in the acid-extractable fractions), and the result is helpful for the further study on controlling and reducing Pb contamination in vegetable-growing soils.

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Section: Assessment Of Total Pb In Soils and Vegetablescontrasting

confidence: 63%

Lead contamination and its potential sources in vegetables and soils of Fujian, China

Huang

Chen

et al. 2011

Environ Geochem Health

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“…[8] However, it is generally recognized that the particular behavior of trace metals in the environment is determined by their specific chemical forms rather than their total concentration because knowledge of the total content of heavy metals present in the soil provides limited information about their potential behavior and bioavailability. [9][10][11][12][13][14] study would form the baseline data for future heavy metal pollution status of soils in the area under study.…”

Section: Introductionmentioning

confidence: 99%

Chemical speciation of some heavy metals and human health risk assessment in soil around two municipal dumpsites in Sagamu, Ogun state, Nigeria

Ogunbanjo

Onawumi

Gbadamosi

et al. 2016

Chemical Speciation & Bioavailability

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Environmental and health risk posed by heavy metals from municipal landfill cannot be over emphasized. However, the toxicity and fate of metal in the soil is dependent on its chemical form and therefore quantification of the different forms of metal is more meaningful than the estimation of its total concentration. This study investigated the chemical form and potential hazards of heavy metal pollution at two municipal landfills in Sagamu, Ogun state, Nigeria. Soil samples were collected around the landfills and chemical form of Cu, Zn, Cd, Pb, and Fe were studied, using the Tessier Five-step sequential chemical extraction procedure. The results showed that Cu and Fe were speciated into residual fractions with averages of 23.9 and 31.3% respectively, while Cd and Zn were associated with Carbonate fractions with respective averages of 20.3 and 20.6%. The order of mobility and bioavailability of these metals are: Cd > Pb > Cu > Zn > Fe. A comparison of the result of total extractible metals with standard set by USEPA reveals that Cd and Cu level in the dumpsite soils are far above the critical permissible limit of 3.0 and 250 mg kg −1 , respectively which potent a health risk. Assessment of soil pollution level using geoaccumulation index (I geo) revealed that the landfill was extremely polluted by Cd (I geo > 5). Pearson correlation and principal component analysis showed that there were no significant correlations (p < 0.05) among all the metals, suggesting that they are all from different anthropogenic sources. The cancer risk ranged from 1.36E−01 to 2.18E−04 and 5.82E−01 to 9.35E−04 for Children and Adult respectively. The level of cancer risk falls above the threshold values (10 −4-10 −6) which US Environmental Protection Agency considered as unacceptable risk. Based on the above findings, it was suggested that environmental management policy should be implemented to decrease the environmental risks.

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“…It is commonly acknowledged that total soil heavy-metal concentration alone is not a good measure of bioavailability and is not a very helpful tool to determine the potential risk associated with soil contamination. Therefore, chemical speciation, which plays a vital role in determining the bioavailability of toxic metal in a soil solution, is often used as a predictor of metal bioavailability to soil organisms and plants [9]. The chemical forms of the metal control its bioavailability or mobility.…”

Section: Introductionmentioning

confidence: 99%

Heavy Metal Speciation and Health Risk Assessment of Soil and Jute Mallow (Corchorus Olitorus) Collected From a Farm Settlement in Ikorodu, Lagos, Nigeria

Makanjuola¹,

Bada²,

Ogunbanjo³

et al. 2019

JACEN

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There is an increasing global concern for adverse effects of inorganic fertilizer and pesticides applied to agricultural soils. This study investigated metal speciation in soil and health risk assessment of Jute mallow (Corchorus olitoriuos) from a farm settlement in Ikorodu, Lagos State. Soil samples were collected according to the set standard procedure, sequentially extracted and analyzed for selected heavy metals using standard methods. Results showed that chromium (Cr) was associated with reducible fraction (Fe-Mn) for top soil, while cadmium (Cd), manganese (Mn), and copper (Cu); lead (Pb) and nickel (Ni); and Cr were predominantly bound to carbonate, reducible and residual mineral components respectively for subsoil. The results of Contamination Factor (CF), Contamination Degree (CD), Pollution Load Index (PLI) and Geoaccumulation Index (I geo) showed that the soil samples were not polluted for all the investigated metals. The Cd level in the soil (13.54 ± 1.21 mg•kg −1) and vegetables (0.83 ± 0.05 mg•kg −1) were above the USEPA critical permissible limit of 3.0 mg•kg −1 and 0.1-1.2 mg•kg −1 respectively. The daily intake of estimated selected heavy metals from the vegetable ranged from 8.8 × 10 −03 to 1.4 × 10 −02 for adult and 3.8 × 10 −03 to 1.1 × 10 −02 for children while the Hazard Quotient (HQ) for adults ranged from 5.4 × 10 −05 to 1.1 × 10 −01 and that of children ranged from 8.3 × 10 −03 to 1.4 × 10 −02. The cancer risk (CR) values of heavy metals in the soil ranged from 1.02 × 10 −11 to 9.90 × 10 −10 and 4.45 × 10 −09 to 8.61 × 10 −09 for children and adults respectively. The level of cancer risk was below the threshold values (10 −4-10 −6) which USEPA considered as unacceptable risk.

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Soil heavy-metal speciation and wheat phytotoxicity in the vicinity of an abandoned lead–zinc mine in Shangyu City, eastern China

Cited by 28 publications

References 31 publications

Lead contamination and its potential sources in vegetables and soils of Fujian, China

Lead contamination and its potential sources in vegetables and soils of Fujian, China

Chemical speciation of some heavy metals and human health risk assessment in soil around two municipal dumpsites in Sagamu, Ogun state, Nigeria

Heavy Metal Speciation and Health Risk Assessment of Soil and Jute Mallow (Corchorus Olitorus) Collected From a Farm Settlement in Ikorodu, Lagos, Nigeria

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