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·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 and Al amounts were high in plants
·The uptake and distribution of four heavy metals including copper Cu cadmium Cd lead Pb and zinc Zn and those of total phosphorus TP in 30 plants in North China were investigated through pot trial experiments Accumulation and distribution of heavy metals or TP were associated with plant species tissues metal elements and pollutant
·The sludge was examined for and the total concentrations and different chemical fractions of Cd Cr Pb Cu Ni and Zn The total metal concentrations of heavy metals in sludge varied greatly The contents of Zn and Cu were the highest followed by then Cr Ni and Pb and the content of Cd was the least
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
·The absorption and accumulation of Pb Zn Cu and Cd in some endurant weed plant species that survived in an old smeltery in Liaoning China were systematically investigated Potential hyperaccumulative characteristics of these species were also discussed The results showed that metal accumulation in plants differed with species tissues and metals Endurant
·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
·The concentrations of heavy metals Cu Ni Pb Zn in soils and water receiving used engine oil were investigated Soil and water samples were collected at discharge and control points at each
·A similar trend was observed for Pb in plants the maximum accumulation 2347 mg kg −1 in C rubrum at site HN 4 and minimum in Z candida mg kg −1 at site HN 3 Unlike Cr Cu Cd and Pb the maximum Zn concentration was not found in plants at site HN 4 or HN 5 but in A philoxeroides 365 mg kg −1 at site HN 3
·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
·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 = p < N = 16 and Cr Cd r = p < N = 16 These significant correlations indicated a site that
·For example after investigating 15 species of aquatic plants from contaminated urban streams Cardwell et al 2002 found that the roots had higher concentrations of metals Cd Cu Pb 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
·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
·Effect of rhizospheric environment of VA2mycorrhizal plants on forms of Cu Zn Pb and Cd in polluted soil HUAN G Yi CHEN Youjian and TAO Shu Depart ment of U rban and Envi ronmental Sciences Peking U niversity Beijing 100871 2Chin J A ppl
·The content of As Ag Cd Cu Pb and Zn was determined in individual plant organs and correlated with soil characteristics The degree of the pollution depended on the metal with results ranging from uncontaminated Cd to moderately Zn strongly As Cu and extremely contaminated Pb Ag soils
·The absorption and accumulation of Pb Zn Cu and Cd in some endurant weed plant species that survived in an old smeltery in Liaoning China were systematically investigated
Results showed that accumulation abilities are various in different species age stages and plant issues and large Ceriopstagal showed bigger EF than smaller ones and middle sized and small sized Bruguiera sexangula and Aegiceras corniculatum show biggerEF than other size groups Mangrove which grows in the intertidal zones has been proved to be an important natural sink
·Lake Victoria Basin 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 in Katanga wetland with the highest mean concentrations of ± mg/kg Zn ± mg/kg Pb ± mg/kg Cu
·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
·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
·The concentration and speciation of Cu Pb and Zn in soil samples collected around the lead zinc smelting plant of Baoji NW China were determined using X ray fluorescence spectrometry and the modified European Community Bureau of Reference sequential extraction procedure The single pollution index PI and the integrated pollution
·Cu > Se > Cd > Zn >> Pb Although Cd and Cu are introduced as very toxic metals to many plants especially Cu Ouzounidou 1995 Ouzounidou et al 1997 the toxicity of Pb is low in comparison to
·The mean values in the soil roots and shoots of the studied plants were respectively 4771 2320 and 1340 mg kg − 1 for As; and mg kg − 1 for Ag; and 4180 1424 and 1050 mg kg − 1 for Pb The plants collected from the study area were separated into different groups based on the As Ag and Pb concentrations in
