I am an atmospheric scientist and my main interests are in air quality, tropospheric ozone chemistry and in halogenated gases that are stratospheric ozone depleting and greenhouse gases.

I came to UEA as a student in 1983 and never left.  Initially I studied for a BSc in Environmental Sciences before obtaining a PhD in Atmospheric Science.  I was then employed as a researcher for 15 years on various projects and, for a couple of years, supported by the National Centre for Atmospheric Research (NCAS).  In 2005 I began a RCUK Academic Fellowship, becoming a Reader in 2010 and subseqently a Professor in 2014.  I teach atmospheric chemistry and am currently the Deputy Head and Director of Research for the School of Environmental Sciences.

I am member of the Defra Air Quality Review Group.

• 1983 - 1986: BSc in Environmental Sciences, University of East Anglia.
• 1986 - 1989: PhD in Atmospheric Science, University of East Anglia, with 1987/8 at the University of Oslo, Oslo, Norway.
• 1989 - 2002: Senior Research Associate, University of East Anglia.
• 2003 - 2004: National Centre for Atmospheric Science supported Researcher, University of East Anglia.
• 2005 - 2010: Research Councils UK Academic Fellow, University of East Anglia.
• 2010 - 2014: Reader, University of East Anglia.
• 2014 - present: Professor of Atmospheric Science, University of East Anglia.

I am working on air quality, and how this can be improved through various interventions including behaviour change.

My research on tropospheric ozone has focused on the processes that control its temporal and spatial trends, in particular the roles of long range transport, biogenic emissions, and the chemistry of peroxy radicals, peroxides and alkyl nitrates.

My work on halogenated gases has largely involved modelling the atmospheric budgets of these gases using measurements of their atmospheric concentrations as constraints.  I have been a co-author of the UNEP/WMO Scientific Assessments of Ozone Depletion that are used by the Parties to the Montreal Protocol to amend their controls on ozone depleting substances.

By training, I am a theoretical modeller, but my research activities focus on the interpretation of field data.  This has included data from our Weybourne Atmospheric Observatory on the North Norfolk coast and other sites in the UK, Ireland, Australia and Malaysia. I have been involved in many campaigns using the Met. Office C-130 aircraft and the Facility for Atmospheric Airborne Research BAE-146 aircraft, including major international collaborative experiments flying over the Atlantic and West Africa. I have also investigated long term trends of trace gases derived from analysing samples from an archive of air collected in Tasmania, Australia, and from air trapped in firn (unconsolidated snow).

Publications: EPrints Digital Repository

• Deputy Head of the School of Environmental Sciences
• Director of Research for the School of Environmental Sciences

ENV-4001A Global Environmental Challenges (Lecture on air quality)

ENV-5015A Atmospheric Chemistry and Global Change (Teach tropospheric ozone chemistry, aerosols and air quality)

ENV-7030B Environmental Pollution: Science, Policy and Management (Teach air pollution)

Teaching interests are:

1) Air quality, science, policy and management

2) Tropospheric ozone chemistry

3) Using models to address atmospheric chemistry questions.

4) Montreal Protocol, science management and policy