Uso de biomarcadores para monitoramento das águas do Córrego Arara no município de Rio Brilhante, MS, Brasil

Abstract

The aim of this paper is to avaluate the mutagenicity, genotoxicity and cytotoxicity of water from the Arara Stream in the city of Rio Brilhante, MS, Brazil, it was realized through toxicological tests using biomarkers. In order to evaluate the mutagenicity it was utilized the micronuclei test, the genotoxicity utilized the comet assay, both in Astyanax sp., and to analize the cytotoxicity it was the Allium cepa test. The collections were placed on April and June months in 2013. The data of the micronuclei tests and Allium cepa, were submitted to analyze of variance and Tukey test, and of the assay comet to chi-square test (p>0,05). The results indicated a meaningful increasing at the frequency of micronucleus th collection realized on June, if is compared to April’s collection. At the Allium cepa test, the citotocity effect showed meaningfully larger at the April’s collection, however the genotocity of water didn’t showed statistic differences among the months of the collection. The greatest number of damage at the comet assay occurred at points 1 and 4, on April’s and June’s collection respectively. At the chemical analyze results, it was observed the levels of cadmium, chromium, copper and nickel, spear with higher values will legislation. Due to the presence of pollutants, the samples analyzed of the Arara Stream show possible potential mutagenic, genotoxic and cytotoxic to bodies, these pollutants are derived or not from human action. Thus, is credited with this work is going to serve as additional tool to the quality control of water from the Arara Stream, considering its utilization and importance to the city.