Substantiation of the permissible value of odor from sewerage system facilities

Abstract

Abstract With the growth of urbanization in large cities, the number of complaints from the population on unpleasant odors emitted by sewerage system facilities increases. In most cases, instrumental measurements on the content of individual malodorous substances in the zone of influence of sewerage facilities do not confirm the exceeding of the atmospheric air quality standards, even in terms of unpleasant odor. The lack of a clear system for standardizing odor in the atmospheric air and of established odor standards in Russia determined the relevance of this study. The aim of the study is to substantiate the permissible value of the odor emitted by sewerage system facilities. The article describes the research methodology. The results of field studies on the content of pollutants in the atmospheric air and the concentration of odor at the border of the sanitary protection zone of sewerage facilities are presented. The criteria for odor evaluation are proposed. The permissible value of odor for sewerage facilities is substantiated.