Assessing risks of respiratory organs diseases and co-morbid pathology in children caused by ambient air contamination with technogenic chemicals (cohort study)

We conducted a cohort study which included 144 children who were divided into 3 groups. The test group A was made up of 47 children who lived on a territory where ambient air was contaminated with benzene, phenol, formaldehyde, and particulate matter. The test group B included 45 children exposed to aerogenic introduction of metals (vanadium and manganese). The reference group was made up of 22 children who lived on a territory which was safe in terms of its sanitary-hygienic state. It was detected that 87.2 % children aged 4-6 who were exposed to aerogenic impacts by benzene, phenol, formaldehyde, and particulate matter had allergic rhinitis, and two thirds of children with respiratory organs diseases had secondary immune failure. By the first school year, probability of allergic rhinitis, bronchial asthma, recurrent bronchitis and functional pathologies in the gastrointestinal tract grew by 4.6-7.9 times. When children reached 11-14 years, frequency of chronic diseases in the gastrointestinal tract among them grew by 14...