Recently, heavy metal contaminated soil has been widespread concerned. Herein, rice straw-derived biochar-supported nanoscale zero-valent iron (nZVI@BC) composite was prepared and characterized, and its remediation performance in Cu, Zn, As, Cd, and Pb contaminated soil were evaluated. nZVI@BC demonstrated better immobilization effect on …
The values for each element are in the order Zn = Mn = 1 < Cu = Ni = Pb = 5 < Cd = 30 (Chen et al., 2020). Results and discussion. Tables 3, 4, 5, and 6 reveal the concentrations of the heavy metals (Zn, Mn, Pb, Ni, Cd, and Cu) found in the irrigation water, soils, and vegetables. The results indicated that Zn values in water samples varied ...
of big cities in Nigeria (Uwah, 2009; Uwah et al., 2011). Although this water is considered to be a rich source of organic matter and plant nutrients, it also contains sufficient amounts of soluble salts and heavy metals like Fe, Mn, Cu, Zn, Pb, Ni, Sn, Hg, Cr, As, Al (Kirkhan, 1983; Uwah, 2009; Uwah et al., 2011). When such water is
Zn Cu Ni Co Mean concentration of heavy metals in water samples from Mbat-Abbiati and Oberrekai Creeks of the Great Kwa River, Southeastern Nigeria As shown (Tables 1; Fig. 3), zinc (Zn) displayed the highest level of heavy metals in the waters of both Creeks, followed by copper, nickel and others in the order: Zn>Cu>Ni>Pb>Co for waters from ...
ABSTRACT: This study was carried out to assess the level, distribution and the contamination status of Pb, Zn, As, Ni, Cu, Cr and Cd in agricultural soils around the settlements of …
The Huogeqi is a large Cu-Pb-Zn polymetallic deposit having a metal reserve of 0.7113 Mt Cu at an average grade of 1.35 % Cu, 0.78 Mt Zn at 1.46 % Zn, and 0.97 Mt Pb at 1.49 % Pb (Huang et al., 2001). In addition, iron formations within the ore-hosting sequences are also mined for iron resources (Li et al., 2021). The Neoproterozoic Langshan ...
Metal BSAFs ranked as Cd > Zn > Cu and Pb (Table 1, P < 0.05), which was consistent with the result of Dai et al. (2004). The Cd accumulated in earthworm tissues would re-enter the soil when earthworm dies, posing environmental risk (Zhang et al., 2016). Therefore, it is important to reduce Cd accumulation in earthworm tissue.
the metal with the highest phytoaccumulation capability in the area, followed by Ni, Cu, Pb and Zn, in that order. Indication from the study is that water hyacinth (Eichhornia crassipes) can effectively absorb and translocate Pb, Zn, Cu, Ni and Co, even when the concentrations of the metals in the abiotic components of the environment is low.
Fried potatoes content of the studied metals were found to be ranged from 0.054 to 0.10 of Cd, 0.065 to 0.159 of Pb, 1.626 to 1.992 of Cu and 3.837 to 6.844 mg.kg-1 of Zn. Overall, the present study showed that the levels of Cu and Zn are generally below the permissible levels.
PB, ZN, CU, NI AND CO CONTENTS OF WATER AND SEDIMENTS, IN ... In southern Nigeria, the Great Kwa River flow through Obufa Esuk, Esuk Atu, University of Calabar Teaching Hospital (UCTH), University ...
The mean levels of Zn, Cu, Pb and Cd found in plantain chips obtained from the University of Lagos main campus were 2.15 ± 0.13, 0.27 ± 0.03, 0.83 ± 0.04 and 0.10 ± 0.03
The *Corresponding Author Email: achukwu1@gmail; kelechioji3@gmail 1486 Assessment of Pb, Zn, As, Ni, Cu, Cr and Cd in….. concentration of Pb, Zn, Cu, Cd, Ni, As, and Cr were determined in all samples using Atomic absorption Spectrophotometer (FS 240 Varian) with standard solution in similar manner to that described in APHA 1995.
In the present study, surface soils (0-20 cm) samples from 167 sampling sites in Xuzhou (China) were collected in 2010 and analyzed for heavy metals including Zn, Pb, Fe, Mn, Cu, Cd, Sr, Ba Cr, Ni ...
crops (cassava, plantain and cocoyam) were observed to have high concentrations of Fe, Zn, Cr, Cu, and Pb. Studies on heavy metal concentrations in food crops grown in crude oil impacted soils in olomoro, delta state, Nigeria revealed high metal concentrations of Cr, Cu, Fe, Pb, and Zn in cassava tubers and plantain fruits.
Geo accumulation index (I-geo) values for Mo, Cu, V, Pb, Zn, Ni, Co, Mn, and Ba fall under unpolluted (0) to moderately polluted (1-2) classes. Maximum enrichment factor (EF) …
Fried potatoes content of the studied metals were found to be ranged from 0.054 to 0.10 of Cd, 0.065 to 0.159 of Pb, 1.626 to 1.992 of Cu and 3.837 to 6.844 mg.kg-1 of Zn. Overall, the present study showed that the levels of Cu and Zn are generally below the permissible levels.
Local Government Area of Bauchi State, Nigeria Received 3 May, 2017 Revised 25 May, 2017 Accepted 29 May, 2017 Published 8 June, 2017 ... Zn, Cu and Pb concentrations exceeded the Dutch target values (Zn: 50 mg/kg, Cu: 30 mg/kg, and Pb: 85mg/kg) in all the sampling sites. The results of the analysis of the water samples were
Results indicated that Cu was absent, while Pb and Zn levels were below the standard thresholds, but Cd concentrations exceeded the acceptable limits. The calculated Nemerow's Pollution …
in Nigeria found significant accumulations of heavy metals in soil and medicinal plants in Aba, primarily ... As, Pb, Cu, and Zn concentrations were 0.28, 31.42, 47.59, 100.46, and 12.36 mg/kg ...
This study investigates the levels of Pb, Cd, Zn and Cu in roadside soils of Wukari section of the Wukari-Jalingo highway, Taraba state, Nigeria. Samples were randomly collected and …
In another study by Visa [7] for the simultaneous adsorption of Cd(II), Ni(II), Cu(II), Zn(II), and Pb(II) on zeolites from coal fly ash, with NaP1 as the major composition, the maximum adsorption capacity was found to be 26.9 ... (American University of Nigeria) for the productive discussions on this research. Recommended articles. References ...
In-plant samples as C. demersum Fe, Cd, Zn, and Cr have exceeded the allowable limits, while Cu and Pb didn't exceed the permissible limits, also in P. pectinatus Fe, Cd, and Zn have exceeded ...
The investigation revealed elevated concentrations of cadmium (Cd), copper (Cu), nickel (Ni), lead (Pb), zinc (Zn), cobalt (Co), chromium (Cr), iron (Fe), and arsenic (As) across …
acid extracted sewage sludge – Resin screening in weak acid media. White Rose Research Online URL for this paper: https://eprints.whiterose.ac.uk/145396/ Version: Supplemental Material ... pH Fe Pb Zn Cu Pb Zn Cu Fe Zn Cu Fe Pb 3.26 49.1 30.5 40.9 0.0204 0.623 0.834 0.0327 1.61 1.34 0.0244 1.20 0.746 3.62 15.7 27.3 18.7 0.0636 1.74 1.19 0. ...
The colored patches represent the pollution levels of As, Cd, Cr Cu, Ni, Pb, Zn, and Hg in the agricultural soil of China, with the bar graphs representing the provincial metal concentrations of rice and wheat (mg/kg for As, Cd, Cr Cu, Ni, Pb and Zn, μg/kg for Hg) in China.
Heavy metals and health risk assessment of arable soils and food crops around Pb–Zn mining localities in Enyigba, southeastern Nigeria (PDF) Heavy metals and health risk assessment of arable soils and food crops around Pb–Zn mining localities in Enyigba, southeastern Nigeria | smart C obiora - Academia.edu
The addition of illite improved the reducible fractions of Pb, Zn, and Cu by 5.4%, 2.1%, and 1.2%, respectively, compared to the control. The contents of Pb, Zn, Cu, and Cd in a reducible state in the co-cropping mode were higher compared to single species of Epipremnum aureum, and they were lower than single species of Ilex cornuta. The ...
In this research work the level and distribution pattern of the metals: Pb, Cu, Cd, Cr, Zn, Mn, and Fe were determined in soil of Bauchi Metropolis. Samples were collected from places of high anthropogenic activity such as automobile maintenance workshop (AMW), to places of low activity; the Residential areas (RA). Collection was done from surface to subsurface portion of …
Cu was only observed in AMW with the level 0.007±0.021. The level of Cr ranged from 0.009±0.005 in the BMP to 0.026±0.003 along the HW. The concentration of Mn ranges from …
Concentrations of Mn, Fe, Cu, Zn, Cr, Cd, Pb, Ni in selected Nigerian tubers, legumes and cereals and estimates of the adult daily intakes. Author links open overlay panel I.O. Akinyele a, O.S ... in developing countries such as Nigeria, limited data are available on microminerals and heavy metals, in some hospital diets (Akinyele & Osibanjo ...
This study was designed to determine the levels of microminerals (manganese (Mn), iron (Fe), copper (Cu), zinc (Zn), chromium (Cr)) and heavy metals (cadmium (Cd), lead …
However, no significant changes in means of TG, Zn, Cu, Pb, Cd, Cr, Fe, Mn and Se in the breast milk samples of test subjects were seen when values were compared with respective corresponding control.
The presence of more than 50% of Pb, Cd, Cu, Zn in non ... Nigeria. The study area is characterized by tropical humid climate with two distinct seasons: the wet season which occurs between March and October with an average annual rainfall of about 1,250mm and dry season from November .
In this study, the level and frequency of breast milk AfM 1 and selected heavy metals as biomarkers of maternal exposure was assessed. Selected heavy metals (Pb, Cd, Cr, Cu, Zn, Fe, As, and Hg) were analyzed using Atomic Absorption Spectrophotometry while AfM 1 levels were assessed by HPLC with fluorescence detection after aflatoxin extraction. The mean …