[Health aspects of sodium salts of sulfurous and sulfuric acids as environmental pollutants].

For the first time hygienic characteristics of long-term inhalation exposure effects of sodium salts of sulphurous and sulphuric acids in low concentrations on animals is given. The most sensitive organs and organism systems have been identified. MACs of the substances under study for the ambient air are proposed. The degree of contamination and the distance of spreading of sodium sulfate from the source have been determined in field studies. The size of the sanitary-protective zone has been substantiated.