24. Miller, F. J., Overton, J. H. and Graham, R. C. Regional deposition of inhaled reactive gases. In: Concepts in Inhalation Toxicology. Hemisphere Publishing, NY, p. 229-247, 1989.

25. Kennedy, A. L., Stock, M. F., Alarie, Y. and Brown, W. E. Uptake and distribution of 14C during and following inhalation exposure to radioactive toluene diisocyanate. Toxicol. Appl. Pharmacol. 100, 280-292, 1989.

26. Ferguson, J. S., Kennedy, A. L., Stock, M. F., Brown, W. E. and Alarie, Y. Uptake and distribution of 14C during and following exposure to [14C] methyl isocyanate. Toxicol. Appl. Pharmacol. 94, 104-117, 1988.

Note: It is always assumed that these chemicals are so reactive that they never, as such, enter the pulmonary capillaries by diffusion across the alveolar-capillary membranes. I think this is incorrect.