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Controlled Exposure to a Mixture of SO 2 , NO 2 , and Particulate Air Pollutants: Effects on Human Pulmonary Function and Respiratory Symptoms

1985; Heldref Publications; Volume: 40; Issue: 4 Linguagem: Inglês

10.1080/00039896.1985.10545917

2331-4303

Michael T. Kleinman, Ronald M. Bailey, Jill D. Whynot, Karen R. Anderson, William S. Linn, Jack D. Hackney,

Air Quality Monitoring and Forecasting

ABSTRACT Exposure of 20 volunteers to sodium chloride (NaCl) aerosol or to a mixture containing NaCl plus irritant particles (zinc ammonium sulfate) and irritant gases (nitrogen dioxide and sulfur dioxide) produced no significant decrements in pulmonary function. There was a slight tendency for respiratory symptoms to be greater during the exposure to the mixture than during exposure to the NaCl aerosol alone; the differences were not statistically significant. The pollutant concentrations studied approximated worst-case ambient levels observed in the Los Angeles basin.