The concentration of metals by marine phytoplankton, assessed for diverse species in laboratory culture experiments with radiotracer methodology and taken together with literature values for other metals, was analyzed in light of geochemical models describing particle surface chemistry. Concentration factors vary among the metals from -0 to = 106, and there are only modest differences (less tha...

Conducting research on monitoring contaminated fields by heavy metals is necessary in order to achieve sustainable agriculture, increase product quality and keep public health. This study was carried out using split plot experiment based on randomized complete blocks design with three replications during 2014-2015 in Shavor Agricultural Research Center in order to evaluate the effect of croppin...

Medicinal plants are sources of different chemical substances with different biological activities in living organism. Some of the chemical compounds socalled “heavy metals”, can be dangerous because they tend to bioaccumulate and transported in all biota via the food chain. The aim of our study was to investigate the concentration of heavy metals in commercially available tea samples purchased...

This paper determines the controlling factors that influence the metals' behavior water-sediment interaction facies and distribution of elemental content ((75)As, (111)Cd, (59)Co, (52)Cr, (60)Ni, and (208)Pb) in water and sediment samples in order to assess the metal pollution status in the Langat River. A total of 90 water and sediment samples were collected simultaneously in triplicate at 30 ...

The presence of heavy metals in Triticum aestivum L. growing on the soil enriched with granular sludge after chemical protection was observed. The five variants of treatments using herbicide (Chwastox Turbo 340SL) and four fungicides (Topsin M 500SC, Amistar 250SC, Artea 330EC, and Falcon 460EC) were performed. On control and experimental plots, the concentration of Ni, Pb, Cr, and Cu in wheat ...

Preliminary studies have shown that the bioassay based on inhibition of alpha-glucosidase biosynthesis (AGB) in Bacillus licheniformis is useful in the acute toxicity screening of environmental samples. Alpha-glucosidase is an extracellular enzyme induced by the presence of maltose in the environment of the cell. The enzyme degrades maltose into glucose residues acting at the 1, 4-alpha-glycosi...

Environmental studies are confronted with a challenging task to develop appropriate low cost technologies for treatment of liquid wastes. Conventional methods for removing metals from aqueous solutions include chemical precipitation, chemical oxidation or reduction, ion exchange, fi ltration, electrochemical treatment, reverse osmosis, membrane technologies and evaporation recovery. However, th...