آخرین محصولات
Super-stable mineralization of Cu, Cd, Zn and Pb by CaAl …
Soil pollution caused by potentially toxic metals (PTMs) is a world-recognized environmental problem. The excessive accumulation of PTMs (e.g., Cr, Cu, Zn, As, Cd, Hg and Pb) in soil has seriously affected the grows of crops and the quality and safety of food, and further affected human health through the food chain [19], [21], [30].Various physical remediation …
Laboratory Analysis of Screening quantitative metals: Al, Sb, …
The analysis of Screening quantitative metals: Al, Sb, Ag, As, Ba, Cd, Cr, Co, Cu, Sn, Fe, Mn, Mo, Ni, Pb, Se, Sr, Tl (Thallium), Ti, V and Zn, is made conducted by Screening ICP. Samples are needed to carry out perform the analysis. They are collected in Waterproof and inert. The quantification limit is Depends on the number of wipes.
Arsenic and Heavy Metals in Soils and Plants near Sulfide …
The accumulation of heavy metals (i.e., As, Cu, Ni, Pb, and Zn) in soils and native plant species near copper, nickel, and pyrite mines in Vietnam was assessed. The highest soil …
Genotypic variations in the accumulation of Cd, Cu, Pb and Zn …
Atmospheric deposition of Pb onto plants has often been considered to be of greater importance than root uptake and translocation to edible portions of plants. However, Pb has an index of accumulation of 10 −1 –1.0, which is in the same range as Cu and Zn (Kabata-Pendias and Pendias, 1992). Therefore genotypic differences in accumulation ...
Accumulation of Cr, Cd, Pb, Cu, and Zn by plants in …
soil screening level based on ingestion (390 mg kg−1)set by US EPA (ICDA 2001), respectively. In addition, high concentrations of Pb, Cd, Cu, and Zn were also found in the tanning sludge storage sites (Table2). Meanwhile, met-al concentrations in the soil samples collected from differ-ent sites were highly correlated with Cr-Zn (r =0.671,
Investigations of Pb and Cu Isotopes to Trace Contamination …
The variation in δ ⁶⁵ Cu AE647 (δ ⁶⁵ Cu max-min ) was larger than that of δ ⁶⁶ Zn IRMM3702 (i.e., δ ⁶⁶ Zn max-min ), and the isotope values of Zn and Pb ( ²⁰⁶ Pb/ ²⁰⁷ ...
Background concentrations of trace metals As, Ba, Cd, Co, Cu, Ni, Pb …
Regional background concentrations of heavy metals (Cr, Co, Ni, Cu, Zn, Pb) in coastal sediments of the South Sea of Korea Sci. Total Environ., 482 ( 2014 ), pp. 80 - 91 View PDF View article View in Scopus Google Scholar
Levels of Cu, Zn, Pb, and Cd in the leaves of the tea plant
The pairs of Cu–Zn (0.486) and Zn–Pb (0.423) showed high and significant correlations at 99 and 95 % confidence levels, respectively. Furthermore, the linear correlation for soil to leaf transfer showed that between Cd in soil and leaf, there is a high and significant correlation (0.560) at 99 % confidence level.
Bioaccessibility, source and human health risk of Pb, Cd, Cu and Zn …
Mean total and bioaccessible concentrations of PTMs in <10 μm fraction of windowsill dusts are shown in Fig. 1 and Table 1, respectively.The SA sub-area samples had greater mean Cd, Pb and Zn concentrations than the UJ sub-area samples (p < 0.05), while Cu concentrations were similar between the SA and UJ sub-areas (p > 0.05).Mean bioaccessible …
Separation of Sn, Sb, Bi, As, Cu, Pb and Zn from …
were obtained at 0.548mol/L TBP. Meanwhile, Pb, As, Bi, Cu and Zn were not extracted as well and there was no significant changes while increasing the TBP concentration. 3.4 Effect of Sn concentration Pb As Cu Zn Extraction(%) TBP, Pb As Zn Extraction(%) As
Website: koreanmetals Uiseong Cu-Au-Ag-pb-Zn …
The Uiseong Cu-Au-Ag-Pb-Zn project is situated in the southeast of South Korea. Based on historical drilling, the Mineral Resource Target is estimated as 20.83Mt @ 1.06g/t Au, 44g/t …
Accumulation properties of As, Cd, Cu, Pb and Zn by …
Environmental and Experimental Botany 47 (2002) 271–280 Accumulation properties of As, Cd, Cu, Pb and Zn by four wetland plant species growing on submerged mine tailings
Concentration of Zn, Cu, and Pb in Soils and
생육지 토양의 중금속 함량은 같은 표고상에 위치한 광산 위 지점(SP1, SP2, SP3)에서 볼 때 SP1지점에서는 Zn의 함량이 537.5 mg/kg로 가장 높았고, SP3지점에서는 Cu와 Pb의 함량이 가장 높았는데 이는 폐광산에 복토 사업을 했더라도 아직 토양 복원이 완전히 이루어지지 ...
(PDF) Accumulation of Cr, Cd, Pb, Cu, and Zn by plants in …
Hyperaccumulators, the plant species that can accumulate 1000 mg Ni, Cu, Co, Cr, and Pb, 100 mg Cd, and 10,000 mg kg −1 Zn and Mn dry weight may be emphasized for the phytoextraction (Garcıa et ...
Screening of Native Plants Growing on a Pb/Zn Mining …
Key takeaway: 'Native plants growing on Pb/Zn contaminated sites in eastern Morocco show potential for developing effective phytoremediation strategies, particularly for Pb phytoextraction and Cd/Cu phytostabilization.'
Closely-related species of hyperaccumulating plants and their ability
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.
Screening and Evaluation of the Bioremediation Potential of Cu/Zn …
The quest for new, promising and indigenous plant growth-promoting rhizobacteria and a deeper understanding of their relationship with plants are important considerations in the improvement of phytoremediation. This study focuses on the screening of plant beneficial Cu/Zn-resistant strains and asses …
Accumulation of Sb, Pb, Cu, Zn and Cd by various plants
They found that the accumulation of Zn, Cu, Cd, and Pb in the shoots of 14 plant species, including 5 grass species, remained below the Swiss tolerance values for fodder plants (40 mg kg −1 Pb ...
Heavy metal contamination and health risk assessment in …
This study was designed to investigate the heavy metal (Cu, Zn, Pb and Cd) concentrations in soils and food crops and estimate the potential health risks of metals to …
Accumulation of Sb, Pb, Cu, Zn and Cd by various plants …
The accumulation of Zn, Cu, Cd and Pb in the shoots of all nine plant species remained below the Swiss tolerance values for fodder plants (150 mg kg −1 Zn, 15–35 mg kg −1 Cu, 40 mg kg −1 Pb, and 1 mg kg −1 Cd DW), with the only exception of Pb in Chenopodium album shoots which reached a concentration of 62 mg kg −1 DW.
Heavy Metal Concentrations in Soils and Factors …
Abstract: Heavy metal concentrations were measured in soils and plants in and around a copper-tungsten mine in southeast Korea to investigate the influence of past base metal mining on …
Characteristics of metal pollution and multi-isotopic …
A combination of Cu, Zn and Pb isotopes can be used as potential environmental tracers to track the origins of these metals in the environment as well as to understand their …
Screening of Native Plants Growing on a Pb/Zn Mining …
plants Article Screening of Native Plants Growing on a Pb/Zn Mining Area in Eastern Morocco: Perspectives for Phytoremediation Said El Hasnaoui 1,2, Mouna Fahr 1,2,*, Catherine Keller 2,3 ...
Arsenic and Heavy Metals in Soils and Plants near …
The accumulation of heavy metals (i.e., As, Cu, Ni, Pb, and Zn) in soils and native plant species near copper, nickel, and pyrite mines in Vietnam was assessed. The highest soil As, Cu, Ni, Pb, and Zn concentrations …
Heavy Metal Pollution Assessment in Stream Sediments from …
Stream sediments from heavily industrialized areas, including urban areas (SS), industrial complexes (US), petrochemical industries (PS), and the Onsan industrial complex …
Screening of Native Plants Growing on a Pb/Zn Mining …
are better suited for phytostabilization of Cd/Cu and Cu/Zn, respectively. Our study shows that several spontaneous and native plants growing on Pb/Zn contaminated sites have a good potential for developing heavy metals phytoremediation strategies. Keywords: phytoextraction; phytostabilization; native plants; heavy metal; hyperaccumulation ...
Sources and Ore-Forming Environment of the Jinchanghe Pb-Zn …
The Jinchanghe Pb-Zn polymetallic deposit is a representative distal skarn deposit in the Baoshan block. Due to limited research on the sources of ore-forming metals and trace elemental geochemistry of sulfides, the sources and mineralization environments of the Jinchanghe skarn Pb-Zn polymetallic deposit are still controversial. In this study, copper and …
Accumulation of As, Ag, Cd, Cu, Pb, and Zn by Native Plants …
High concentrations of As, Cd, Cu, Zn, and Pb were observed in shoots of plants from two botanical families: Poaceae (Cortaderia Hapalotricha and Cortaderia nitida), and Asteraceae (Ageratina sp, Baccharis latifolia, Baccharis rhomboidalis, Baccharis amdatensis) in Peru (the Carolina and Turmalina mines), Ecuador, and Chile by Bech et al. where ...
[PDF] Accumulation of Pb, Cu, and Zn in native plants …
This study sought to identify plant species with potential for phytoremediation of soils polluted with lead (Pb), zinc (Zn) and copper (Cu) and identified Tephrosia candida and Tagetes minuta and Blotiella glabra (Bory) Tryon as potential plants for phytoextraction of Pb and Stylochaeton natalensis Schott forphytostabilisation of Zn. Expand
Sequential Fractionation and Chemical Speciation of Cd, Zn, Cu and Pb …
In a phytoremediation study in Argentina with Sesbania virgata plants, it was observed that the main accumulation of heavy metals appeared in plant roots, and Zn is more removed from soils by S ...
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