Association of cadmium, zinc, copper, and nickel with components in naturally heavy metal‐rich soils studied by parallel and sequential extractions

Narwal, R. P.; Singh, Bal Ram; Salbu, Brit

doi:10.1080/00103629909370279

Cited by 128 publications

(79 citation statements)

References 33 publications

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“…The mobility of the metals in the soil profiles may be assessed on the basis of absolute and relative contents of fractions weakly bound to soil components (Kabala and Singh, 2001). The relative index of metal mobility has been calculated as a mobility factor using a six-step extraction scheme (Kabala and Singh, 2001;Salbu et al, 1998;28 Heavy metals in soils around waste dumpsites Narwal et al, 1999). In this study, the mobility factor was calculated on the basis of the equation.…”

Section: Mobility Factors (Mf) Of the Metals In The Soil Profilesmentioning

confidence: 99%

“…It is generally recognised that the particular behaviour of trace metals in the environment is determined by their specific physicochemical 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 behaviour and bioavailability (Kotoky et al, 2003). This has led to increased interest in studies on the speciation or chemical forms of heavy metals in polluted soils using sequential techniques because these provide knowledge on metal affinity to soil components and the strength with which they are bound to the matrix (Narwal et al, 1999). Sequential extraction analysis is a technique developed for the overall assessment of the speciation and potential mobility of metals in soils and sediments (Calmano et al, 1982).…”

Section: Introductionmentioning

confidence: 99%

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Chemical forms of heavy metals in soils around municipal waste dumpsites in Asaba Metropolis, Delta State, Nigeria

Osakwe

Akpoveta

Okoh

et al. 2012

Chemical Speciation & Bioavailability

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The chemical forms of copper, lead, manganese and zinc in soils around five selected municipal waste dumpsites in Asaba metropolis, Delta State, Nigeria, were studied, using the Ma and Rao six-step sequential chemical extraction procedure, with a view to providing information on the bioavailability and mobility of the metals in the soil matrix. The results showed that lead and manganese were speciated into residual fractions with averages of 60.32 and 82.24% respectively, while copper and zinc were associated with organic and Fe -Mn oxide fractions respectively with respective averages of 47.91 and 63.21%. The residual fraction also contained relatively high percentages of copper (33.18%) and zinc (20.81%). Relatively very low levels of the metals were found in the water soluble, exchangeable and carbonate fractions. The mobility factors of all the metals in all the soil profiles were generally low ranging from 1.97 to 39.99 indicating generally low availability as well as mobility. Lead and manganese associated with the residual fraction were strongly bound to soil matrix and were not bioavailable since they were occluded within the crystal lattice layer of silicates and well crystallised oxide minerals. Our results show that the metals do not pose any environmental risk or hazard. However, the soils stand the risk of being contaminated by copper and zinc since metals associated with organic and Fe -Mn oxide fractions could be bioavailable and mobilisable when the soil conditions such as pH and redox potentials change.

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Section: Mobility Factors (Mf) Of the Metals In The Soil Profilesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Chemical forms of heavy metals in soils around municipal waste dumpsites in Asaba Metropolis, Delta State, Nigeria

Osakwe

Akpoveta

Okoh

et al. 2012

Chemical Speciation & Bioavailability

View full text Add to dashboard Cite

show abstract

“…The relative index of metal mobility has been calculated as a mobility factor using a six-step extraction scheme (Kabala and Singh, 2001;Salbu et ali., 1998;Narwal et al, 1999). In this study, the mobility factor was calculated on the basis of the equation…”

Section: Mobility Factors Of the Metals In The Soil Profilementioning

confidence: 99%

“…As a result, studies on the speciation or chemical forms of heavy metals in polluted soils using sequential extraction techniques have increased because they provide knowledge on metal affinity to soil components and the strength with which they are bound to the soil matrix (Narwal et al, 1999). By knowing those heavy metal bearing phases and their solubility in aqueous fluids, one can infer the potential mobility and bioavailability (lability) of toxic metals (Maceau et al, 1996;Iwegbue et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

Chemical partitioning of iron, cadmium, nickel and chromium in contaminated soils of south-eastern Nigeria

Osakwe

2013

Chemical Speciation & Bioavailability

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“…이전의 연구결과들에서 토양 내 중금속들의 용해도는 토양의 pH 변화, 유기물 함량, 인산 함 량의 영향을 받는다고 보고하였다 (Street et al, 1978;McBride et al, 1997;Redman et al, 2002;Weng et al, 2002;Zwonitzer et al, 2003). Hong et al, 2007Hong et al, , 2008Hong et al, , 2010 (Rauret, 1998;Lu, 1999;Lindsay et al, 1978) Hong et al, 2007Hong et al, , 2008Hong et al, , 2010Narwal et al, 2008).…”

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Monitering of Heavy Metal (loid)s Contamination of Arable Soils near Industrial Complexes in Gyeongnam Province of South Korea

Park¹,

Lee²,

Hong³

2016

Korean Journal of Soil Science and Fertilizer

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There are a number of industrial complexes which could be a source of heavy metal (loid)s contamination of arable soil in Gyeongnam province of South Korea. Heavy metal (loid)s accumulation of plant is more related to the concentration of plant available heavy metal (loid)s in arable soil than that of total heavy metal (loid)s. The objectives of this study were 1) to examine heavy metal concentrations in soils located near industrial complexes in Gyeongnam province and 2) to determine the relationship between concentration of plant available heavy metal (loid)s and chemical properties of soil. Soil samples were collected from 85 sites of arable lands nearby 7 industrial complexes in Gyeongnam province. Total heavy metal (loid)s concentration, available heavy metal (loid)s concentration, and chemical properties of collected soils were measured. The mean concentrations of arsenic (As), cadmium (Cd), copper (Cu), lead (Pb), and zinc (Zn) in the soils were 5.8 mg kg , respectively. Total concentration of Cd and Zn in arable soil located near ∇∇ industrial complex exceeded the warning criteria (4 mg kg -1 and 300 mg kg -1 for Cd and Zn, respectively) as described by in the soil environmental conservation Act of Korea. The concentration of plant available heavy metal (loid)s was negatively related to the soil pH and available Pb and Zn concentrations had relatively high correlation coefficient when compared with other heavy metal (loid)s. The concentration of plant available Pb and Zn was negatively related to that of organic matter (OM). Based on the above results, it might be a good soil management to control pH and OM concentration with soil amendments such as lime and compost to reduce phytoavailability of heavy metal (loid)s in arable soil located near industrial complex.

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Association of cadmium, zinc, copper, and nickel with components in naturally heavy metal‐rich soils studied by parallel and sequential extractions

Cited by 128 publications

References 33 publications

Chemical forms of heavy metals in soils around municipal waste dumpsites in Asaba Metropolis, Delta State, Nigeria

Chemical forms of heavy metals in soils around municipal waste dumpsites in Asaba Metropolis, Delta State, Nigeria

Chemical partitioning of iron, cadmium, nickel and chromium in contaminated soils of south-eastern Nigeria

Monitering of Heavy Metal (loid)s Contamination of Arable Soils near Industrial Complexes in Gyeongnam Province of South Korea

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