Risk perception of populations in Northeastern Brazil about domestic sewage treatment and reuse

Abstract The reuse is a growing practice in Brazil, given its relevance in minimizing the water scarcity. However, the environmental consequences and its sustainability have not been completely elucidated, being the risk perception analysis a starting point for understanding such concerns. In this perspective, the aim of this study was to evaluate the operation of Sewage Treatment Plants, the applicability of sewage reuse, and its influence on the quality of life of the population of Parelhas and Pedro Velho, counties of the semiarid and northeastern coast, respectively. From the results, it was found a great rejection in the operation of the stations, associated with the impacts produced such as odor and proliferation of mosquitoes, which imply economic, social and public health problems. Regarding reuse, acceptance is predominant for irrigation of crops for human and animal use. We emphasize the need for further research to diagnose the environmental risks arising from this activity.