Beuthan. 1979. Controlled studies of human exposure to single and combined action of NO2, O3, and SO2. Int. Arch. Occup. Environ. Health 43:195-210.

WHO (World Health Organization). 1977. Environmental Health Criteria 4: Oxides of Nitrogen. Geneva, Switzerland: World Health Organization.


Yokoyama, E. 1972. The respiratory effects of exposure to SO2-NO2 mixtures on healthy subjects [in Japanese]. Jpn. J. Ind. Health 14:449-454.



The National Academies | 500 Fifth St. N.W. | Washington, D.C. 20001
Copyright © National Academy of Sciences. All rights reserved.
Terms of Use and Privacy Statement