44 research outputs found
Disponibilidade e fracionamento de Cd, Pb, Cu e Zn em função do pH e tempo de incubação com o solo
Full text linkDistribuição e formas de ocorrĂȘncia de zinco em solos no municĂpio de Vazante - MG
Full text linkThe effect of phytostabilization on Zn speciation in a dredged contaminated sediment using scanning electron microscopy, X-ray fluorescence, EXAFS spectroscopy, and principal components analysis
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Assessment of metal along a contamination gradient in soils collected from industrial areas in Northern Tunisia
No full textCOMInternational audienceMany studies were interested in the assessment and the monitoring of soil contamination with heavy metals. The aim of this study was to evaluate the effects of emissions from the Tunisian Steel Company El Fouladh in Bizerte (Tunisia). In this context, we measured Zinc (Zn), Copper (Cu), Lead (Pb) and Cadmium (Cd) soilâs concentrations from 8 sites along a contamination gradient. Besides, physicochemical parameters, pH, organic carbon, CEC and CaCO3 were measured. Heavy metals were determined using an atomic absorption spectrome-try. The results revealed a high concentration of heavy metals in soils collected from several sites. The contamination factor (CF) was determined to estimate soil contamination of the sam-pling sites, and revealed that the level of contamination varied along a contamination gradient, which may be due to the mobility of pollution
Effects of Natural Zeolite and Bentonite on the Phytoavailability of Heavy Metals in Chicory
No full textEfeito do composto de resĂduo sĂłlido urbano no teor de metais pesados em solo e goiabeira
No full textEffect of addition of ameliorative materials on the distribution of As, Cd, Pb, and Zn in extractable soil fractions
No full textEffect of porous hydrated calcium silicate on sorption and desorption of cadmium by soils
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