Environ. Sci. Technol. 1984, 18, 49-54
Atmospheric Reactions of N-Nitrosodimethylamine and Dimethylnitramine Ernest0 C. Tuazon," Wllllam P. L. Carter, Roger Atklnson, Arthur M. Wlner, and James N. Pltts, Jr.
Statewide Air Pollution Research Center, University of California, Riverside, California 9252 1 The major atmospheric reactions of N-nitrosodimethylamine (NDMA) and dimethylnitramine (DMN) have been investigated in an -3500-L environmental chamber utilizing in situ long-path Fourier transform infrared spectroscopy. Rate constants for the reactions of OH radicals with NDMA and DMN were measured relative to that for dimethyl ether at 298 f 2 K and resulted in values of K(OH + NDMA) = (3.0 f 0.4) X cm3 molecule-' s-l and K(OH DMN) = (4.5 f 0.5) X cm3 molecule-l s-l. Rate constants for the reactions of 0 with NDMA and DMN were determined to be 51 X and 99%), N2H, (Matheson Coleman & Bell, >97%), NO (Matheson, 99.0%), and CH30CH3(Matheson, >99.87 % ) were used without further purification. The specific experiments performed consisted of (1) measuring the dark decay rates of DMN and NDMA in dry air (
