Geochemical assessment, distribution, and dynamics of trace elements in urban agricultural soils under long‐term wastewater irrigation in Kano, northern Nigeria

Abdu, Nafiu; Agbenin, John O.; Buerkert, Andreas

doi:10.1002/jpln.201000333

Cited by 33 publications

(11 citation statements)

References 42 publications

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“…where EF is enrichment factor, Msample and Resample are the concentrations of the metal and the reference metal, respectively, in the contaminated soil and Mref and Reref are concentrations of the metal and the reference metal in the reference soil, respectively [2,3,5].…”

Section: Enrichment Factor (Ef)mentioning

confidence: 99%

“…Cn stands for measured concentration of the examined metal n in the soil and Bn stands for reference value or geochemical background concentration of the metal n (mg/kg) in the soil. Factor 1.5 was used to take into account the possible variations in background values for a given metal in the environment and the small anthropogenic influences [2,3,30].…”

Section: Geoaccumulation Index (I Geo )mentioning

confidence: 99%

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Ecological risk assessment of heavy metal-contaminated soils of selected villages in Zamfara State, Nigeria

2021

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The incidence of heavy metal contamination in Zamfara State, northern Nigeria, due to artisanal mining in some villages has resulted in the pollution of a vast area of land and water. This study evaluated the extent of environmental risks caused by heavy metals. It involved five (5) villages (Bagega, Dareta, Sunke, Tunga, and Abare) where mining activities were taking place and Anka town with no record of mining activities served as control. In each of the five villages, three sites (3) were identified as a mining site, processing site, and village making a total of sixteen (16) sites. Bulked soil samples were collected in triplicate and analyzed for iron, lead, cadmium, chromium, zinc, and nickel using flame atomic absorption spectrophotometry. Measured concentrations of the heavy metals in soils were then used to calculate the pollution and ecological risk pose by heavy metals. Their concentrations were in the order Fe > Pb > Cr > Zn > Cd > Ni, with Pb and Cd having a concentration higher than permissible levels for soils and accounted for 98.64% of the total potential ecological risk. Also, all the different pollution indices examined showed that all the sites were polluted with Cd, and all the processing sites were polluted with Pb. This reveals that processing sites pose more risk to heavy metal contamination. Correlation analysis showed a highly significant (p < 0.001) positive correlation between Pb and Zn, Cr and Ni, and a significant (p < 0.01) positive correlation between Fe and Pb, Zn and Cr. The principal component analysis suggested that Pb, Zn, Cr, and Ni likely originated from the same source, i.e., mining activities, and Fe and Cd originated from the abundant parent material in the study area.

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Section: Enrichment Factor (Ef)mentioning

confidence: 99%

Section: Geoaccumulation Index (I Geo )mentioning

confidence: 99%

Ecological risk assessment of heavy metal-contaminated soils of selected villages in Zamfara State, Nigeria

2021

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“…Weathering of rock is considered the most significant contributor of heavy metals. Generally, the weathering process is influenced by the nature of the rock and the environmental conditions on which the concentration and composition of heavy metals largely depends (Abdu et al, 2011). Materials of geologic origin have high concentrations of Mn, Cr, Co, Cu, Ni, Zn, Sn, Cd, Hg, and Pb.…”

Section: Natural and Other Sources Of Heavy Metals In Agro-environmenmentioning

confidence: 99%

Agroecological Responses of Heavy Metal Pollution with Special Emphasis on Soil Health and Plant Performances

Srivastava

Sarkar

Singh

et al. 2017

Front. Environ. Sci.

264

100

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With modern day urbanization and industrialization, heavy metal (HM) contamination has become a prime concern for today's society. The impacts of metal contamination on agriculture range from the agricultural soil to the produce in our food basket. The heavy metals (HMs) and metalloids, including Cr, Mn, Co, Ni, Cu, Zn, Cd, Sn, Hg, Pb, among others, can result in significant toxic impacts. The intensification of agricultural land use and changes in farming practices along with technological advancement have led to heavy metal pollution in soil. Metals/metalloids concentrations in the soil are increasing at alarming rate and affect plant growth, food safety, and soil microflora. The biological and geological reorganization of heavy metal depends chiefly on green plants and their metabolism. Metal toxicity has direct effects to flora that forms an integral component of ecosystems. Altered biochemical, physiological, and metabolic processes are found in plants growing in regions of high metal pollution. However, metals like Cu, Mn, Co, Zn, and Cr are required in trace amounts by plants for their metabolic activities. The present review aims to catalog major published works related to heavy metal contamination in modern day agriculture, and draw a possible road map toward future research in this domain.

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“…Heavy metals (HM) have latent toxicity effect on soil invertebrates, plants, and animals. HM such as lead (Pb), chromium (Cr), and cadmium (Cd) are known to be carcinogenic ( Abdu et al, 2011 ; Addis and Abebaw, 2017 ; Mng'ong'o et al, 2021a , 2021b ). Some HM (iron (Fe), copper (Cu), manganese (Mn), zinc (Zn)) at low dose are plant nutrients.…”

Section: Introductionmentioning

confidence: 99%

Accumulation and bioconcentration of heavy metals in two phases from agricultural soil to plants in Usangu agroecosystem-Tanzania

Mng’ong’o

Ndakidemi

Blake

et al. 2021

Heliyon

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The build-up of heavy metals (HM) in agricultural soils accelerates the HM uptake by plants, which could potentially affect food quality and food safety. Here we studied the status and bioaccumulation of HM from soils to plant parts (roots, stem, and grains) in Usangu agro-ecosystem-Tanzania. In total 68 soil samples and 42 rice plant samples from six irrigation schemes were studied. The concentrations of cadmium-Cd, chromium-Cr, copper-Cu, lead-Pb, zinc-Zn, nickel-Ni, and iron-Fe were determined to estimate accumulation, distribution, bioconcentration. Total soil HM concentration in soil and plant samples was determined by acid digestion. The concentration of HM in soils samples (in mg/kg) were Cr (4.58-42.76), Co (1.486-6.12), Fe (3513.56-12593.99), Zn (7.89-29.17), Cd (0.008-0.073), Cu (0.84-9.25), Ni (0.92-7.98), and Pb (1.82-18.86). The total HM concentration in plant samples were (in mg/kg) were Cu (5.18-33.56), Zn (57.03-120.88), Fe (963.51-27918.95), Mn (613.15-2280.98), Cd (4.3-17.46), Pb (0.01-28.25), ). The concentration of HM in soil and plant parts was observed to vary among locations where high concentrations of HM were detected in stems and roots compared to grains. The ratio HM in plants and soil samples (bioconcentration) was higher than one for some sites indicating higher HM uptakes by plants leading to possible health risk to soil invertebrates, animals, and humans. The bioconcentration factor varied among schemes, with the highest values at Igalako and Mahongole, which could be caused by artisanal gold mining and mining quarry existed in the area. Therefore, steps are needed to reverse the situation to balance the HM in agricultural soils and plant tissues to be within acceptable limits.

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Geochemical assessment, distribution, and dynamics of trace elements in urban agricultural soils under long‐term wastewater irrigation in Kano, northern Nigeria

Cited by 33 publications

References 42 publications

Ecological risk assessment of heavy metal-contaminated soils of selected villages in Zamfara State, Nigeria

Ecological risk assessment of heavy metal-contaminated soils of selected villages in Zamfara State, Nigeria

Agroecological Responses of Heavy Metal Pollution with Special Emphasis on Soil Health and Plant Performances

Accumulation and bioconcentration of heavy metals in two phases from agricultural soil to plants in Usangu agroecosystem-Tanzania

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