Due to exposure to emissions from a protein-vitamin concentrate-manufacturing enterprise, the total and allergic morbidity rates remained high in the Blagoveshchensk population during a follow-up, the incidence of asthma and atopic dermatitis being on the rise and that of pollen disease on the decrease. The findings show the need for a further follow-up of the health status of the population of this area, the living conditions in which are risk factors for allergic and toxic allergic diseases even after microbiological industry closure.