ABSTRACT As the largest industrial and population centre in China, the Pearl River Delta is facing a growing threat of heavy metal pollution from local mining and power industries. This study investigates the distribution and potential health risks of copper (Cu), cadmium (Cd), lead (Pb) and zinc (Zn) in paddy soils and rice at four typical sites. The Nemerow …
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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 ...
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The main impurities of impure Zn are Pb and Cd which can be substantially removed from Zn by reflux distillation column. The first fraction of Zn distilled will contain …
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According to BCF, TF, and BAC, these plant species could be used as effective plants for Pb phytoextraction. Stipa tenacissima and Artemisia herba-alba 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 …
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Maize (Zea mays L.) was inoculated with or without VA mycorrhizal (Glomus mosseae) and cultivated in a heavy metals contaminated soil. The distribution and dynamics of Cu, Zn, Pb and Cd forms in rhizosphere of maize inoculated with or without VA-mycorrhizal were analyzed with the technique of sequen …
High levels of Zn (1453.3 ± 220.3 μg g⁻¹) were found in plant tissue compared to Pb (277.2 ± 18.0 μg g⁻¹) and Cu (255.3 ± 25.6 μg g⁻¹). Toxicological endpoints correlated with metal ...
The article presents the process of the complex extraction of Pb, Cu, Zn and As from fine dust from copper smelters in Kazakhstan via direct leaching with …
112 % for Cd, 98 % for Cu, 96.5 % for Pb, and 92 % for Zn. Results and discussion The mean concentration and range of copper, zinc, lead, and cadmium in the tea leaves in SomeeSara, Fuman,
1.. IntroductionThe 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 …
Samples of soil, water and plants were analysed for total Zn, Cu, Pb and Ni concentrations using flame atomic absorption spectrophotometry. The trace metal concentrations in soil were the highest ...
the plant. Cu and Zn in the soil are mainly associated with the residual fraction, while Pb is dominated by the reduc-ible and residual forms. The mobile fractions of Cu, Pb and Zn in topsoil are Pb (60.1 %)[Cu (20.1 %) & Zn (20.6 %). The PI for Cu, Pb and Zn varies from 1.1 to 1.4, 1.0 to 2.5 and 1.1 to 2.0, with means of 1.2, 1.4 and 1.4 ...
In this study, the effects of industrial and urban pollution on Pb, Al, Cd, Cu, and Zn accumulation, peroxidase activity, and pigment and protein contents were investigated in shrub and tree leaves in Antakya, Turkey. We determined that industrial and traffic activities produce the most plant-incorporated air pollutants in Antakya City. Cu …
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, p < 0.01, N = 16) and Cr-Cd (r = 0.673, p < 0.01, N = 16). These significant correlations indicated a site that
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Various industrial activities contribute heavy metals to the soil environment directly or indirectly through the release of solid wastes, waste gases, and wastewater. Phytoremediation can be potentially used to remedy metal-contaminated sites. A major step towards the development of phytoremediation of heavy metal-impacted soils is the …
(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 1:2.5 (w: v) soil: deionized water slurry. The loss on ignition (LOI) (organic matter content) was determined
The distribution and dynamics of Cu, Zn, Pb and Cd forms in rhizosphere of maize inoculated with or without VA-mycorrhizal were analyzed with the technique of sequential extraction. ..., title={[Effect of rhizospheric environment of VA-mycorrhizal plants on forms of Cu, Zn, Pb and Cd in polluted soil].}, author={Y. H. Huang and Y. Chen and …
traffic activities produce the most plant-incorporated air pollutants in Antakya City. Cu and Al amounts were high in plants in the urban street location and Cd, Pb, and Zn amounts where high for all plants in the industrial site. Acer negundo L. showed maximum Pb and Zn accumulation at the industrial site and Al accumulation for the urban ...
The order of selectivity of heavy metal accumulation in soils is affected by the pH of the soil. The precipitate is formed at pH values of soil solution above 4 or 5, the selectivity order obtained is Pb > Cu > Zn Cd, as observed for natural clay, illite and montmorillonite soils (Gidlow, 2015, Jusko et al., 2008).
Most Zn refining plants operate a roasting–leaching–electrowinning (RLE) process for Zn Pb oxidized ore concentrates. If Fe is present in the Zn ore concentrate, …
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Basic Lime Treatment. The basic lime treatment is simple addition of lime to an AMD stream followed by solid/liquid separation in a settling pond (Fig. 1). The lime is added to …
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Sediment-hosted Pb-Zn deposits dominate contained Pb-Zn metal resources with 141.6–345.1–3.9 Mt Pb-Zn-Cu, followed by Volcanogenic Massive Sulfide deposits …
DOI: 10.1080/10934520801974459 Corpus ID: 9538740; Electrokinetic enhancement on phytoremediation in Zn, Pb, Cu and Cd contaminated soil using potato plants @article{Aboughalma2008ElectrokineticEO, title={Electrokinetic enhancement on phytoremediation in Zn, Pb, Cu and Cd contaminated soil using potato plants}, …
Huludao Zinc Plant in Huludao City, China is the largest zinc smelting plant in Asia. ... Health risk of Hg, Pb, Cd, Zn, and Cu to the inhabitants around Huludao Zinc Plant in China via consumption of vegetables Sci Total Environ. 2007 Sep 20;383(1-3):81-9. doi: 10.1016/j.scitotenv.2007.05.002. Epub 2007 Jun 15. ...