Avaliação de potabilidade da água de poços rasos para consumo humano no município de Jaboticaba/RS

Abstract

Water is of fundamental importance for biodiversity and the development of human activities for the maintenance of life. This study aimed to evaluate the potability of water from shallow wells for human consumption in the municipality of Jaboticaba/RS. Chemical, physical and biological analyzes were carried out in four rural properties collected from the well and tap in 2019. The results obtained, were compared with the Ordinance GM/MS No. 888 of 2021 and the World Health Organization of 2017. The physical and chemical variables turbidity, nitrite, fluoride, total hardness and pH are found in according to Brazilian and world legislation. Regarding the apparent color, total iron and biological variables (total coliforms and Escherichia coli), these are not in compliance with legislation, which may be associated with the high rainfall occurred in the sample period. The macroscopic analysis was carried out around the shallow wells of all rural properties and classified according to their degree of preservation. Property 1 was rated Good, property 2 Poor, property 3 Fair, and property 4 Great. Thus, it is concluded that the analyzed waters are unfit for human consumption. Therefore, so that they can be consumed safely and with guaranteed quality, it is suggested that disinfection be carried out through chlorination, the protection and coverage of shallow wells, as well as the preservation around the springs positively that influence the improvement of water quality.