Immunological reactivity under conditions of prolonged exposure to ozone

Immune status of 158 workers exposed to ozone in a maximal permissible concentrations (0.1 mg/ml) for a long time was evaluated using a turbidimetric method. A tendency to decrease in IgA concentration in subjects with longer service was detected. The ranges of IgM and IgG levels were determined, which probably reflect individual differences. The concentration of circulating immune complexes in the blood was increased. Translated fromByulleten' Eksperimental'noi Biologii i Meditsiny, Vol. 128, No. 10, pp. 422–424, October, 1999