Heavy metals including copper (Cu), zinc (Zn), cadmium (Cd), chromium (Cr), lead (Pb), and arsenic (As) were investigated in 89 pairs of rice plant and paddy soils around Dongting Lake area, China. Rice plants and soils were collected with GPS device, and heavy metal contents in different rice plant tissues and soils were measured.
Mar 11, 2019· Some of these (like Cd, Pb, and Hg) are not necessary, while others (like Cu, Fe, Mn, Zn, and Mo) act as essential micronutrients for plant growth, and excess concentrations affect plant ...
The work about Phytochemical screening and heavy metals (Fe, Cu, Zn, Pb, Cd, and Mn) contents of Nicotiana glauca plant . View Phytochemical Screening and Heavy Metals Contents of .
Jan 20, 2005· The paper discusses the transfer of metal ions (As, Cd, Cr, Cu, Hg, Mn, Ni, Pb, Zn) from contaminated soils to plants in terms of transfer factors (TF). The knowledge of transfer factors for a given element should enable prediction, before plants are sowed, whether a given soil is suitable for the cultivation of plants for consumption purposes.
Apr 14, 2015· The aim of this study was to evaluate the geochemical background and spatial distribution patterns of selected trace elements (As, Cd, Cr, Cu, Mn, Ni, Pb, U and Zn) in 62 surface soil samples collected in the historic Cu mining area (Miedzianka Mt., Holy Cross Mountains, southcentral Poland). In the study area the mining activity dates back to the fourteenth century. After the shutdown of ...
Aug 19, 2019· In 2 h, Caco2 cells absorbed ng mg−1 of cellular protein for Cd, ng mg−1 for Cu, 5 ng mg−1 for Mn and µg mg−1 for Zn. Lead absorption was lower than the limit of quantification (< 2 µg L−1). Cd was presented in the cell monolayer and could interfere in the intracellular accumulation of Cu, Mn and Zn.
Transportation activities can contribute to accumulation of heavy metals in roadside soil and grass, which could potentially compromise public health and the environment if the roadways cross farmland areas. Particularly, heavy metals may enter the food chain as a result of their uptake by roadside edible grasses. This research was conducted to investigate heavy metal (Cu, Zn, Cd, and Pb ...
This study investigated the application of a specific soil washing method to remove Cu and Pb from contaminated agricultural soil. To develop an efficient leaching agent of heavy metal compounds for use in farmland soil, a mixed chelator (MC) was prepared using potassium fulvic acid (PFA, %) and citric acid (CIT, M) in a volume ratio of 4:1 (PFA:CIT = 4:1); the optimal solidliquid ...
To extract for example 50% of the total Cu, Zn, or Cd present in this soil within 10 years, plant metal concentrations of mg kg1 Cu or mg kg1 Zn or 45 mg kg1 Cd would be required at a biomass production of t ha1, or 10t ha1, or 10t ha1, respectively, assuming a linear decrease in soil metals.
Brassica effectively remediate Pb, Cd, Cu, Cr, Ni, Zn, and Helianthus rhizofiltered Ra and U . Phytostabilization. Phytostabilization refers to the process in which a plant is able to immobilize metal in the resource and transform metallic toxic state to less toxic state. As a result migration of metals to other sites gets reduced .
We average our results for Cu, Zn, Pb, Fe, and Al with other estimates [Weisel et al., 1984] to arrive at a best estimate. The total sea salt flow to the atmosphere is about 1 × 10 13 kg/a, of which % is deposited back into the ocean, with only the remaining % deposited onto land [Gong et al., 2002
Metal accumulating plant species can concentrate heavy metals like Cd, Zn, Co, Mn, Ni, and Pb up to 100 or 1000 times more than those taken up by nonaccumulator (excluder) plants. In most cases, bacteria and fungi living in the rhizosphere closely associated with plants may contribute to mobilize metal ions, increasing the bioavailable fraction ...
Figure 2. Shoot and root biomass of switchgrass cv. Cave in Rock plants after 56 days of growth in substrate spiked with Cu (a), Zn (b), or Pb (c). a b c Cu µg/g 0 150 275 525 Zn µg/g 0 300 550 1050 Pb µg/g 0 1000 2000 4000
HeliosRybicka E, Wójcik R (2012) Competitive sorption/desorption of Zn, Cd, Pb, Ni, Cu, and Cr by claybearing mining wastes. Appl Clay Sci 65–66:6–13 Google Scholar Herbette S, Taconnat L, Hugouvieux V, Piette L, Magniette MLM, Cuine S, Auroy P, Richaud P, Forestier C, Bourguignon J et al (2006) Genomewide transcriptome profiling of the ...
However, Fe, Cu, Zn, Cd, and Pb concentrations are noticeably below the soil screening value after a 20year simulation. Comprehensive results of contaminant indices for different scenarios (, soil type and LRs) are presented in SI 4.
In order to exploit wild grasses with potential for phytostabilization, a screening throughout the year was conducted at a site contaminated by Pb and Zn. Three plant species were chosen: Agrostis ...
For example, Wang, et al. analyzed the soil and plants around abandoned lead and zinc mines and showed that in radish edible parts, As and Pb, exceeded permissible levels by 5 to 220fold, with As, Zn, Pb and Cu concentrations averaging mg/kg, mg/kg, mg/kg and mg/kg, respectively, in Shangyu city of Zhejiang province.
Sep 15, 2006· In this study, a total of 36 plant samples of 17 species was collected from 10 locations at the site. Concentrations 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 nondetectable to as high as 1183 mg kg − 1, with the maximum being in the roots of Phyla nodiflora from site 4 ().
Plants were grown for three months in pots filled with soils treated with the heavy metals Cd, Pb, Cu, and Zn at rates of 10, 50, and 100 mg/kg. The bioaccumulation factor (BCF) and translocation factor (TF) were calculated to detect the ability of R. stricta to accumulate and transfer heavy metals from soil to plant .
Apr 14, 2015· The aim of this study was to evaluate the geochemical background and spatial distribution patterns of selected trace elements (As, Cd, Cr, Cu, Mn, Ni, Pb, U and Zn) in 62 surface soil samples collected in the historic Cu mining area (Miedzianka Mt., Holy Cross Mountains, southcentral Poland). In the study area the mining activity dates back to the fourteenth century. After the shutdown .
Jun 05, 2018· PC is a family of cysteinerich, thiolreactive peptides that bind several toxic metals (, Cu, Zn, Cu, Hg, and Pb). It plays an important role in heavymetal detoxification processes ( 16 ). As PCS can be generally overexpressed in cells when exposed to metal ions, PCs are synthesized and form complexes with the metal ions via metal binding ...
Manan et al. (2015) showed major differences in TF values for Cu, Pb and Zn in two medicinal plants; Centella asiatica had TF values higher than 1 for the three metals, which was similar to the ...
Soil pH was determined in water extract (1: v/v). The soil and plant samples were aciddigested for elemental analysis. Analytical methods included colorimetry for W, atomic absorption spectrophotometry (AAS, PerkinElmer, 2380) for Ag, Co, Cr, Cu, Fe, Mn, Ni, Pb and Zn and hydride generation system (HGS) for As and Sb.
Apr 29, 2017· The health risks arising from heavy metal pollution (HMP) in agricultural soils have attracted global attention, and research on the accumulation of heavy metals in soilplant systems is the basis for human health risk assessments. This review studied the accumulation of seven typical heavy metals—Cd, Cr, As, Pb, Hg, Cu, and Zn—in soilcorn and soilwheat systems.
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