Physico-chemical and genotoxicity analysis of Guaribas river water in the Northeast Brazil

• Published in: Chemosphere (Oxford) Vol. 177; pp. 334 - 338
• Main Authors: de Castro e Sousa, João Marcelo, Peron, Ana Paula, da Silva, Felipe Cavalcanti Carneiro, de Siqueira Dantas, Ellifran Bezerra, de Macedo Vieira Lima, Ataíde, de Oliveira, Victor Alves, Matos, Leomá Albuquerque, Paz, Márcia Fernanda Correia Jardim, de Alencar, Marcus Vinicius Oliveira Barros, Islam, Muhammad Torequl, de Carvalho Melo-Cavalcante, Ana Amélia, Bonecker, Cláudia Costa, Júlio, Horácio Ferreira
• Format: Journal Article
• Language: English
• Published: England Elsevier Ltd 01-06-2017
• Subjects: Aluminum - analysis; Animals; Brazil; Chromium - analysis; Cichlids - genetics; Cities; Comet Assay; Copper - analysis; DNA Damage; Ecotoxicology; Environmental Monitoring - methods; Erythrocytes - drug effects; Genotoxicity; Geography; Guaribas river; Heavy Metal Poisoning; Poisoning; Pollution; Rain; Rivers; Seasons; Spectrophotometry; Water Pollutants, Chemical - analysis; Water Pollution - analysis; Zinc - analysis; Brazil; Cities; Guaribas river; Pollution; Ecotoxicology; Genotoxicity
• ISSN: 0045-6535; 1879-1298
• DOI: 10.1016/j.chemosphere.2017.03.010

River pollution in Brazil is significant. This study aimed to evaluate the physico-chemical and genotoxic profiles of the Guaribas river water, located in Northeast Brazil (State of Piauí, Brazil). The study conducted during the dry and wet seasons to understand the frequency of pollution throughout the year. Genotoxicity analysis was done with the blood of Oreochromis niloticus by using the comet assay. Water samples were collected from upstream, within and downstream the city Picos. The results suggest a significant (p < 0.05) genotoxic effect of the Guaribas river water when compared to the control group. In comparison to the control group, in the river water we found a significant increase in metals such as - Fe, Zn, Cr, Cu and Al. In conclusion, Guaribas river carries polluted water, especially a large quantity of toxic metals, which may impart the genotoxic effect.
•Guaribas river carries polluted water.•Guaribas river water exhibited genotoxic effects in Oreochromis niloticus.•Heavy metal-induced significant toxic effects.