Análise de contaminantes emergentes em águas superficiais do rio Barigui

Abstract

Water is essential for human life from the agricutural sector to the industrial and to the survival of humans. Based on this, to have a good quality in processes where it is used must be free of contaminants. With the growth of urban centers emerging contaminants are increasingly present requiring a special attention to them, because they are not considered by environmental legislation and little is known about the effects of these contaminants in aquatic environments, even some being classified as endocrine disruptors, which cause adverse effects on the human body. Sex hormones are examples of interfering of which several studies are being carried out because there is evidence of hormonal and reproductive imbalances, in addition to the feminization of fish. While caffeine is an example of emerging contaminants and indicator of anthropic activity. The objective of this word was to verify the presence and determine the concentration caffeine and of sex hormonones: estrone, 17β- estradiol and 17α-ethinylestradiol in the river Barigui by high performance liquid chromatography efficiency requiring. The caffeine was the main compound in analysis with concentration range between from 0,05 to 0,87 mg·L-1 and in relation to hormones, the 17β-estradiol was the only detected at a concentration of 0,85 mg·L-1.