title: Retrospective analysis of the relationship between the frequency of medical emergency calls by patients with bronchial asthma and the concentration of ground-level ozone on the South Coast of Crimea
abstract: Background: Russian studies still underestimate one bronchial asthma risk factor, namely, the ground-level ozone recognized by the World Health Organization as the second most dangerous toxicant for the respiratory system. It is of particular importance to determine safe levels of ozone exposure, particularly in areas where patients are undergoing pulmonary rehabilitation and conditions are conducive to the formation of elevated ozone concentrations. Aim: To identify and describe the relationshi
journal: Ekologiya Cheloveka (Human Ecology)