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Joint Chemistry/ICAS External Seminar: Speciated Isoprene Nitrate Chemistry - First Results From Beijing

Joint Chemistry/ICAS External Seminar: Speciated Isoprene Nitrate Chemistry - First Results From Beijing

Date: Tuesday 27th February

Time: 14:00 to 15:00

Presenter: Claire Reeves, Professor of Atmospheric Science in the School of Environmental Sciences, University of East Anglia

Location: SEE L8 Rooms



UEA has developed an analytical system based around Gas Chromatography / Mass Spectrometry to measure individual isoprene derived nitrates (Bew et al, 2016; Mills et al, 2016). This was deployed in the field for the first time in Beijing as part of the AIRPRO project (An Integrated Study of AIR Pollution PROcesses in Beijing) under theme one of the NERC/NSFC Air Quality and Human Health in a Chinese Megacity programme. There were two field campaigns: one in the winter (November 2016) and one in the summer (May/June 2017). Isoprene nitrates derived through different isoprene oxidation pathways (i.e. OH and NO3 oxidation) were observed. Their diurnal patterns will be discussed and compared to those derived using simple model calculations. Preliminary results from the WRF-Chem 3-D regional model, using the Mainz Isoprene Mechanism (MIM, v2), will also be presented.




I joined the School of Environmental Science at UEA as an undergraduate in 1983 and have stayed there ever since!  I did a BSc in Environmental Science and went on to do a PhD in atmospheric chemistry (modelling of non-methane hydrocarbons). From 1990 to 2005 I worked on a variety of research contracts investigating on both tropospheric ozone chemistry and budgets of halogenated compounds relevant to stratospheric ozone depletion and climate. In 2005 I started on an RCUK Academic Fellowship largely working on tropical tropospheric chemistry, including isoprene, as part of the AMMA and OP3 projects in W. Africa and Borneo, respectively. In 2010, I eventually became a member of faculty.  I've been on numerous national and international committees, and been involved in the UNEP/WMO Scientific Assessments of Ozone Depletion since 1994.  I've just joined the DEFRA Air Quality Expert Group.