Damasceno, I. F., Leal, V. L., Coelho, R. C., de Moura, C. V. R., & de Moura, E. M. (2014). Evaluation of pollution level caused by domestic effluent in the Poty river – Teresina PI - Brazil. Eclética Química, 37(1), 51–60. https://doi.org/10.26850/1678-4618eqj.v37.1.2012.p51-60