Editor’s note iq.unesp.br/ecletica | Vol. 43 | special issue | 2018 | Editor’s note The articles published in this special issue went through all the standard procedures used by the Eclética Química Journal and fulfilled all the qualitative requirements of selection, peer review and editing. The readers can see the papers cover the Environmental Chemistry area, in line with the editorial profile of EQJ, with the following subjects: salting-out assisted liquid-liquid extraction method; micropollutants in surface waters; removal of toxic metal ions from water; interaction of nanoparticles with metals in the presence of humic substances; total and labile metals in surface sediments; degradation of dye effluent by photo-Fenton process and determination of lead in stools of animals. Prof. Dr. Assis Vicente Benedetti Editor-in-Chief http://revista.iq.unesp.br/ojs/index.php/ecletica/index