The role of acetone and PAN in the chemistry of the upper troposphere has been investigated with a time-dependent photochemical box model. The results show that acetone strongly enhances aircraft-related ozone production, as exemplified in this study over North Atlantic during summer. For typical flight corridor conditions, the inclusion of about 1nmolmol-1 acetone more than doubles net ozone production by aircraft NO emissions and resolves discrepancies between observations and several global model predictions. The actual magnitude of the acetone-attributed enhancement of ozone production can, however, be reduced by PAN formation which acts as a sink for NO(x) (NO+NO2) and also lowers the OH/HO2 ratio. Copyright (C) 2000 Elsevier Science B.V.
CITATION STYLE
Brühl, C., Pöschl, U., Crutzen, P. J., & Steil, B. (2000). Acetone and PAN in the upper troposphere: impact on ozone production from aircraft emissions. Atmospheric Environment, 34(23), 3931–3938. https://doi.org/10.1016/S1352-2310(00)00159-X
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