Atmospheric processing affects the current and future composition of our atmosphere, and impacts upon human and environmental health, air quality and climate. My research group addresses three areas of atmospheric chemistry central to these effects : 
 

• Understanding the sources and transformations of air pollutants such as Particulate Matter (PM) and Nitrogen Dioxide (NO2) in the urban atmosphere, ranging from the UK to developing megacities such as Delhi

• Quantitative understanding of the sources and sinks for atmospheric oxidants: Impacts upon urban air quality and tropospheric composition from new processes such as the formation of Criegee Intermediates and PM-mediated renoxification

• The atmospheric chemistry of halogen species, in particular iodine chemistry in the marine boundary layer 

 Work in the group combines atmospheric field measurements, simulation chamber and laboratory studies and numerical modelling approaches; we currently have an emphasis upon developing new integrated approaches to assess chemical processing (a complement to the traditional focus upon species abundance).

While we are aiming to achieve fundamental understanding of the atmospheric chemical system, our work also takes place in an applied context: providing the knowledge to underpin policy development to alleviate air pollution.

Please see my Personal Research Pages for more details.