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·Kouame Kouame Victor et al/ ChemTech Res 2016 9 2 pp 189 195 191 samples were analyzed for five metals Pb Zn Cd Cu and Cr by a Perkin Elmer 3000DV Inductively Coupled Plasma Atomic
·Using a global database of 664 hyperaccumulating plants we constructed a phylogeny of hyperaccumulating plants of As Cd Cu Cr Mn Ni Pb and Zn We evaluated the phylogenetic randomness of plants hyperaccumulating different metals by comparing the minimum number of trait state changes across the phylogenetic tree to a null model Based on
inproceedings{Nazir2015AccumulationOH title={Accumulation of Heavy Metals Ni Cu Cd Cr Pb Zn Fe in the soil water and plants and analysis of physico chemical parameters of soil and water Collected from Tanda Dam kohat} author={Ruqia Nazir and Muslim Khan and Muhammad Masab and Hameed ur Rehman and Naveed Rauf and S Shahab and
·The concentrations of heavy metals Zn Cd Pb and Cu were estimated by total contents and DTPA extractions The total contents of the heavy metals ranged from 108 to 1231 mg Zn kg −1 to mg Cd kg −1 31 to 466 mg Pb kg −1 and to mg Cu kg −1
·Aboveground plant heavy metal concentrations ranked Pb > Zn > Cd > Cu with plants having greater bioconcentration factor BCF values for Cd than for Pb Cu and Zn Plant Cd BCF averaged
·The pollution status of ten potentially toxic elements PTEs isotopic compositions Cu Zn Pb and the potential ecological risk posed by them were investigated in the PM10 fraction of road dust in Busan Metropolitan city South Korea Enrichment factors revealed extremely to strongly polluted levels of Sb Cd Zn Pb and Cu in the PM10 fraction
The mean concentrations of Cu Zn Mn Pb and Fe in maize plants from site A were significantly higher p < than in maize plants sampled from site B Table 2 The mean concentrations of Cd Ni Pb and Zn in maize plants harvested from soils exposed to wastewater were found to be above the WHO maximum
· Pb Zn Cu and Cd in plant samples were within 90±10% Soil analysis Soil samples were air dried for 2 weeks and then sieved through a 2 mm mesh The pH value was determined in a 1 w v soil deionized water slurry The loss on ignition LOI organic matter content was determined
·The accumulation of heavy metals in agricultural soils is of increasing concern because of food safety issues potential health risks and its detrimental effects on soil ecosystems McLaughlin et al 1999 Cui et al 2004 Hg Pb and Cd are of great concern because of their toxicity to human health and other organisms whereas Zn and Cu are
·Among the plants Phyla nodiflora was the most efficient in accumulating Cu and Zn in its shoots TF = 12 and while Gentiana pennelliana was most suitable for phytostabilization of sites contaminated with Pb Cu and Zn BCF = 11 22 and Plant uptake of the three metals was highly correlated whereas translocation of Pb was negatively
· Soil treatments The P amendments were applied evenly to the soils at a 2 1 molar ratio of P to the sum of Pb Cu and Zn The 2 1 molar ratio of P to metals is much higher than P metal stoichiometry P M = 3 5 for the M 5 PO 4 3 OH M = Pb Cu and Zn precipitate The large amount of P was used to promote possible precipitation of stable metal phosphates
The case study was represented by an industrial town in the Hamedan province in the central western part of Iran This study showed that most of the sampled species were able to grow in heavily metal contaminated soils and were also able to accumulate extraordinarily high concentrations of some metals such as Pb Fe Mn Cu and Zn
·The Zn Cu Cd and Pb concentrations accumulated in plants was high in the same way as other aquatic species suggested for heavy metal removal Miretzky et al 2004 Gardea Torresday et al 2005 The investigation found that all plant parts took up all four metals Table 1 This corroborates earlier findings that Zn Cu Cd and Pb are directly taken up by
·In this study a total of 36 plant samples of 17 species was collected from 10 locations at the of Pb Cu and Zn in soils and plant biomass are provided in Table 2 Table 3 Table Pb concentrations in the plants ranged from non detectable to as high as 1183 mg kg − 1 with the maximum being in the roots of Phyla nodiflora from site 4
·Accumulation distribution and transference of Cu Pb Zn and Cd in the plant and tolerance were discussed The results showed that the plant has more obvious accumulation above four heavy metals in different tideland and the accumulation contents in sequence were Zn>Pb>Cu>Cd Furthermore the accumulation coefficients were and 4
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·Six plants of each species except for Salix where four plants were used were mounted in black styrofoam plates and placed in 1 l plastic pots filled with 30% nutrient solution with or without the addition of heavy metals In metal treatment pots the elements given were μM Cd μM Cu μM Pb μM Zn and μM As
·Aims The main aim of this study was to validate the HYDRUS 2D model for the simulation of Cd Cu Pb and Zn transport within a soil column and their accumulation by willows Methods A simulation of metal transport and uptake by willow was implemented using the HYDRUS 2D code Two scenarios of the column experiment were compared soil C and soil
·The Zn uptake in plant shoots under AC treatment was higher compared to the control and DC treatment Zn and Cu accumulation in the plant roots under AC and DC treatment was similar and both were higher comparing to control Cd content in plant roots under all three treatments was found to be higher than that in the soil
The major geochemical forms of Cr Ni Cu Zn Pb and V in a soil from an industrial polluted site in the south of Italy were determined by means of synchrotron X ray microanalytical techniques
A field survey of higher terrestrial plants growing on Lanping lead zinc mine China were conducted to identify species accumulating exceptionally large concentrations of Pb Cd Cu and Zn of 20 samples of 17 plant species Concentrations of Pb and Zn in soil and in plant were higher than that of Cu and Cd Significant difference was observed
·Concentrations of Cu Cr Cr VI Ni Pb Cd Zn Hg and As in the investigated sludge samples in mg kg 1 dry matter and LOD LOQ and RSD for all types of measurements obtained in this work
Biochar has attracted interest due to its ability to improve soil fertility soil carbon and crop yield Also biochar can adsorb metals and render them less bioavailable We investigated the soil availability sequential extraction and maize uptake of Cd Pb and Zn in a highly contaminated soil amended with rice straw biochar rates and Mg ha−1 We
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