Odores de esgoto : problemas de saúde pública na grande Cuiabá - Mato Grosso

Abstract

Hydrogen sulfide (H2S) is a colorless, highly toxic and unpleasant distinct odor of rotten egg, its toxicity can irritate the eyes and cause headaches. This gas acts directly on the nervous and respiratory system and it may cause death, according to the inhaled concentration. This study aims to identify and analyze the effects of hydrogen sulfide (H2S) generated by sewage coming from the creek next to the State School of Military Police (Tiradentes) in Cuiaba – MT. By questionnaires given to students and teachers were obtained data to evaluate the effects of odor on health and student behavior relationship in the classroom. It was performed analysis of 10 physical chemical parameter of the water creek in order to assess its quality. The 96 students interviewed, 57% confirmed that the sewage odor interferes with the health and behavior in the classroom, the other 43% did not attribute the feeling of discomfort or behavior as a result of its odor. The results found suggest that students and teachers exposed to hydrogen sulfide gas (H2S), may suffer several adverse health effects. It was observed that the number of medical declarations in the years of 2014 and 2015 had reduced considerably among students because the installation of air conditioning reduced the odor in the classroom and relative to the teachers remains high, as they are still exposed to odor. It was concluded that the creek requires a recovery aiming at improving the water quality, thus reducing the sewage odor in the teaching unit.