Heavy Metals in Soil and Accumulation in Medicinal Plants at an Industrial Area in Enyimba city, Abia State, Nigeria

Ogbonna, P. C.; Nzegbule, E. C.; Obasi, K. O.; Obasi, H.

doi:10.36263/nijest.2018.01.0067

Cited by 7 publications

(4 citation statements)

References 17 publications

(1 reference statement)

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“…At low pH some metallic elements are overly abundant and highly mobile (Brady and Weil, 2000). Notwithstanding this, studies have shown that sites adjoined to source of pollution are subjected to high concentration of PTE such as heavy metals unlike the control site (Ogbonna et al, 2013(Ogbonna et al, , 2018c(Ogbonna et al, , 2020b The concentration of six ( 6) PTE tested in the soil was observed to climax within 1 m followed by their (PTE) values at the distance of 5 m, 15 m, 30 m while the control site had the lowest concentration of the PTE. The pattern of migration of the PTE in soil suggests that the concentration of PTE in soil sample were decreasing with increasing distance from the fecal sludge dumpsite.…”

Section: Horizontal Distribution Of Potentially Toxic Element In Soilmentioning

confidence: 99%

Analysis of Soil Quality Status and Accumulation of Potentially Toxic Element in Food Crops Growing at Fecal Sludge Dumpsite in Ubakala, Nigeria

Ogbonna

Okezie

Onyeizu

et al. 2021

Nig. J. Env. Sci. & Tech.

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This study investigated the magnitude of potentially toxic element (PTE) in fecal sludge and the level of contamination of soil and food crops at Ubakala, Abia State, Nigeria. Soil samples were collected in four cardinal points at north (N), south (S), east (E) and west (W) of 1 m, 5 m, 15 m and 30 m from the edge of the fecal sludge dumpsite and standards (2 ppm, 4 ppm and 6 ppm) were prepared from 1000 ppm stock solution of the metals and used to plot the calibration curve with Atomic Absorption Spectrometer. Commonly consumed Carica papaya, Telfairia occidentalis and Manihot esculenta leaf samples were collected and analyzed to measure the concentrations of PTEs such as Cd, Zn Cr, Mn, Pb and Cu. The concentrations of Zn (12.41±0.30 mg/kg), Cd (0.07±0.00 mg/kg), Cr (4.47±0.34 mg/kg), Cu (2.12±0.03 mg/kg), Mn (8.13±0.03 mg/kg) and Pb (0.01±0.00 mg/kg) in dried fecal sludge are below the permitted limits of European Union. Concentrations of PTEs in soil and plants were Zn (13.40±1.20 to 100.80±1.40 and 1.24±0.06 to 56.02±5.02 mg/kg), Cd (0.07±0.01 to 0.92±0.02 and 0.0000±0.000 to 0.085±0.01 mg/kg), Cu (6.27±0.31 to 31.39±1.04 and 0.002±0.001 to 10.80±2.01 mg/kg), Mn (36.00±1.56 to 188.57±2.25 and 0.11±0.00 to 17.21±2.01 mg/kg), Cr (2.40±0.40 to 21.03±1.43 and 0.000±0.00 to 9.60±1.13 mg/kg) and Pb (0.09±0.02 to 0.35±0.03 and <0.00001±0.00 to 0.008±0.00 mg/kg), respectively. Zinc in soil is higher than FAO/WHO permissible limit while Cd in soil is higher than FAO/WHO limit and Dutch criteria for soil. Zinc and Cr in food crops are higher than FAO/WHO permissible limit. Strong positive relationship exist between Zn in soil and food crops (r = 0.616, p<0.05). Based on the findings, it is recommended that the fecal sludge should be treated with lime to precipitate PTE content of sludge and lowering the corresponding environmental risks.

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Section: Horizontal Distribution Of Potentially Toxic Element In Soilmentioning

confidence: 99%

Analysis of Soil Quality Status and Accumulation of Potentially Toxic Element in Food Crops Growing at Fecal Sludge Dumpsite in Ubakala, Nigeria

Ogbonna

Okezie

Onyeizu

et al. 2021

Nig. J. Env. Sci. & Tech.

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“…In recent years, rapid urbanization and industrialization, as well as the increase in the use of pesticides and fertilizers has caused the heavy metal content in soil and wetlands to increase. Heavy metal emissions from anthropogenic sources such as power stations, metal industries, cement industries and urban traffic are increasing rapidly (Sarwar et al 2017;Ogbonna et al 2018). These heavy metals may remain in the environment for a long time and tend to accumulate in living systems.…”

Section: Introductionmentioning

confidence: 99%

Effect of cadmium, chromium, and lead on micropropagation and physio-biochemical parameters of Bacopa monnieri (L.) Wettst. cultured in vitro

Doğan

2019

Rend. Fis. Acc. Lincei

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Heavy metals are released into the environment as a result of anthropogenic activities such as melting metallic ores, industrial productions, power stations, and pesticides. Among these, cadmium (Cd), chromium (Cr) and lead (Pb) are the most common heavy metals in the environment and can cause serious toxic effects on both animals and plants. In this study, the effect of Cd, Cr, and Pb on the propagation of Bacopa monnieri (L.) Wettst. by tissue culture was investigated. In addition, various physio-biochemical parameters (photosynthetic pigments contents, protein contents, lipid peroxidation, and hydrogen peroxide) and survival frequency of the plant were evaluated. The shoot tip explants of B. monnieri were cultured in Murashige and Skoog (MS) nutrient media supplemented with 0.50 mg/L 6-benzylaminopurine (BAP) and different concentrations of Cd, Cr, and Pb (0.25-1.00 mg/kg) for 10 weeks. 100% shoot regeneration was determined in MS medium containing 0.25, 0.50, and 0.75 mg/kg Cd, 0.25 mg/kg Cr and 0.25 and 0.50 mg/kg Pb. Mean number of shoots per explant and shoot lengths decreased significantly with increasing metal concentration. In Cd, Cr, and Pb applications, maximum number of shoots per explant was obtained as 30.52, 22.47, and 27.12 shoot/explant and the highest shoot lengths were determined as 4.16, 4.27, and 4.35 cm, respectively. As the concentration of the metal exposed to the explant increased, the photosynthetic pigment contents of the plant decreased. The negative impact of metals on photosynthetic pigment contents was found to increase in the order: Cd < Cr < Pb. Similarly, the protein content of plants also decreased due to the negative effect of metals. On the other hand, malondialdehyde (MDA) and hydrogen peroxide (H 2 O 2 ) values elevated with increasing concentrations of heavy metals. The findings of this study carried out under in vitro conditions may shed light on researchers who want to investigate the effects of heavy metals on plants.

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“…Mining operations generates tailings that are deposited around mines and part of the tailing dust escape into the atmosphere. Thus, the atmosphere is a pathway for transport of heavy metals and the major input of bio-available metals in the environment, which are potential threats to the health and survival of man (Ogbonna et al, 2018b). For instance, the inhalation of cadmium (Cd) causes bronchitis, pneumonitis and inflammation of the liver (Mac Farland, 1979) but the effect becomes fatal and deleterious when up to 8 mg/m 3 of cadmium oxide fume is inhaled for about 5 hours (Ademoroti, 1996).…”

Section: Introductionmentioning

confidence: 99%

“…Heavy metals are either deposited directly on plant surfaces such as leaves, flowers, branches, and stems or on soils, which are absorbed from the soil solution into plants via the roots (Ogbonna et al, 2018b). Since herbivores largely depends on fodder plants for food and man also relied heavily on plants for nutrition and health benefits, heavy metal contamination of plants will constitute serious health risk to both man and animals residing around coal mine sites.…”

Section: Introductionmentioning

confidence: 99%

Seasonal variation in heavy metal accumulation in plants at coal mine sites and possible health risk

Ogbonna¹,

Nzegbule²,

Okorie³

2018

Nig. J. Env. Sci. & Tech.

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Human health challenges in recent times have been attributed to consumption of food contaminated with heavy metals. Coal mining is an anthropogenic activity that releases heavy metals into the environment. This study, therefore, assessed accumulation of heavy metals (lead (Pb), cadmium (Cd), nickel (Ni), arsenic (As) and iron (Fe)) in plant species in the vicinity of Akwuke and Iva coal mine in Coal city, Enugu State. The results indicate that the highest concentration of Ni (9.02 ± 0.03 mg/kg), As (0.005 ± 0.001 mg/kg) and Cd (2.16 ± 0.07 mg/kg) was accumulated in Alchornea cordifolia while the concentration of Pb (10.37 ± 0.52 mg/kg) was highest in Andropogon gayanus and Fe (231.00 ± 1.41 mg/kg) was highest in Irvingia gabonensis. The values of Ni (9.02 ± 0.03 mg/kg), As (0.005 ± 0.00 mg/kg), Pb (10.37 ± 0.32 mg/kg), Cd (2.02 ± 0.03 mg/kg), and Fe (46.00 ± 1.41 mg/kg) accumulated in A. cordifolia, A. gayanus, D. guinense, and M. indica in wet season were significantly (P < 0.05) higher than their corresponding values (5.04 ± 0.07, 8.96 ± 0.01 and 0.003 ± 0.001 mg/kg, 1.87 ± 0.07 mg/kg, and 33.45 ± 0.21 mg/kg) in dry season, respectively. Alchornea cordifolia, Andropogon gayanus and Irvingia gabonensis consumed by animals and local inhabitants in the vicinity of the two mined sites could expose them to high levels of Pb, Ni and Cd, thus posing a serious health risk to the local people.

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Heavy Metals in Soil and Accumulation in Medicinal Plants at an Industrial Area in Enyimba city, Abia State, Nigeria

Cited by 7 publications

References 17 publications

Analysis of Soil Quality Status and Accumulation of Potentially Toxic Element in Food Crops Growing at Fecal Sludge Dumpsite in Ubakala, Nigeria

Analysis of Soil Quality Status and Accumulation of Potentially Toxic Element in Food Crops Growing at Fecal Sludge Dumpsite in Ubakala, Nigeria

Effect of cadmium, chromium, and lead on micropropagation and physio-biochemical parameters of Bacopa monnieri (L.) Wettst. cultured in vitro

Seasonal variation in heavy metal accumulation in plants at coal mine sites and possible health risk

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