AbstractRate constants for the gas‐phase reactions of the four oxygenated biogenic organic compounds cis‐3‐hexen‐1‐ol, cis‐3‐hexenylacetate, trans‐2‐hexenal, and linalool with OH radicals, NO3 radicals, and O3 have been determined at 296 ± 2 K and atmospheric pressure of air using relative rate methods. The rate constants obtained were (in cm3 molecule−1 s−1 units): cis‐3‐hexen‐1‐ol: (1.08 ± 0.22) × 10−10 for reaction with the OH radical; (2.72 ± 0.83) × 10−13 for reaction with the NO3 radical; and (6.4 ± 1.7) × 10−17 for reaction with O3; cis‐3‐hexenylacetate: (7.84 ± 1.64) × 10−11 for reaction with the OH radical; (2.46 ± 0.75) × 10−13 for reaction with the NO3 radical; and (5.4 ± 1.4) × 10−17 for reaction with O3; trans‐2‐hexenal: (4.41 ± 0.94) × 10−11 for reaction with the OH radical; (1.21 ± 0.44) × 10−14 for reaction with the NO3 radical; and (2.0 ± 1.0) × 10−18 for reaction with O3; and linalool: (1.59 ± 0.40) × 10−10 for reaction with the OH radical; (1.12 ± 0.40) × 10−11 for reaction with the NO3 radical; and (4.3 ± 1.6) × 10−16 for reaction with O3. Combining these rate constants with estimated ambient tropospheric concentrations of OH radicals, NO3 radicals, and O3 results in calculated tropospheric lifetimes of these oxygenated organic compounds of a few hours. © 1995 John Wiley & Sons, Inc.
