Hydrogels based on chitosan, maltodextrin and gum arabic with and without magnetite
nanoparticles were employed as adsorbents for removing Cd2+ from aqueous solutions …

Heavy metals are different from other toxic agents because they are not metabolized,
destroyed and excreted. They reach water resources mainly through anthropic action, be it …

Nas últimas décadas a concentração de metais-traço no ambiente tem aumentado
consideravelmente, principalmente em regiões do semi-árido que recentemente …

This research aimed to evaluate the ecological risk of xenobiotics associated with
agricultural activities by determining metal contents and biomarker responses using …

O termo elemento-traço tem sido usado para definir metais catiônicos e oxiânions presentes
em baixas concentrações (usualmente< 0, 1 dag kg-1) em solos e plantas (Pierzynski et al …

Although ending world hunger remains the most important goal, increasingly the focus is on
simultaneously improving world malnutrition. Paradoxically, nutritionally important trace …

The soil quality index (SQI) serves as a general ecological restoration indicator, however,
statistics approaches that accurately assess the minimum data set (MDS) for SQI remain …

This paper proposes a low cost, simple, fast method for determining Ni and Cd in biodiesel
samples by graphite furnace atomic absorption spectrometry (GFAAS). The method was …

Soil contamination may result from the inadequate disposal of substances with polluting
potential or prolonged agricultural use. Therefore, cadmium (Cd), chromium (Cr) and nickel …

Dregs is an alkaline solid by-product generated in the cellulose manufacturing industry that
could be used to correct soil acidity. The present study aimed to evaluate the chemical …