To accurately predict the level of oxidant formation from anthropogenic emissions of NOX and volatile organic compounds.
In general the dominant loss process in the troposphere for organic compounds is through reaction with the hydroxyl radical. However, the reaction of ozone with alkenes may also be an important sink process which could give rise to OH radical production. These reactions may be an important source of night-time OH radicals, allowing the OH radical initiated oxidation of organic compounds to continue in the absence of sunlight.
This project investigates detailed kinetic and mechanistic data for the ozone initiated oxidation of alkenes in the troposphere. In order to assess the importance of these ozone reactions with anthropogenic and biogenic alkenes in the removal and/or formation of tropospheric ozone, it is necessary to have a complete understanding of the kinetics and products of these reactions. Structure-reactivity relationships for the kinetics and mechanisms of the reaction of O3 with alkenes will be obtained in order that reliable predictions of the behaviour of alkenes with respect to reaction with O3 may be derived. This information is required in order to model photochemical oxidant formation and assess the impact of releases of volatile organic compounds into the atmosphere.
Funding SchemeCSC - Cost-sharing contracts