Aerosol formation from the gas-phase reaction of hydroxyl radical with thenatural hydrocarbon bornyl acetate

The gas-phase reaction of bornyl acetate ( 1,7,7-trimethyl-bicyclo[2,2,1]-h eptan-2-ol-acelate) with hydroxyl radical has been studied in a smog chambe r. It was found that the reaction of bornyl acetate with OH radicals leads to organic aerosols. The chemical composition of the aerosol was studied. O n the basis of mass spectral data 1,7,7-trimethyl-6-acetyloxy-bicyclo [2.2. 1]-heptan-2,3-dione has been tentatively identified in irradiated CH3ONO-NO -air-bornyl acetate mixtures. The aerosol carbon yield, the fraction of the carbon initially present that is converted to aerosol, has been estimated to be congruent to 5%. (C) 1999 Elsevier Science Ltd. All rights reserved.