Investigation of organic aerosol during high pollution events in Beijing
William J. Dixon; Rachel E. Dunmore; Freya A. Squires; Andrew R. Rickard and Jacqueline F. Hamilton
Wolfson Atmospheric Chemistry Laboratories, University of York, York, YO10 5DQ, UK
Recent news has highlighted the extent of aerosol pollution globally; cities with populations of millions are particularly at risk from high pollution events, leading to an increased risk of detrimental health effects. Mega-cities, such as Beijing are particularly susceptible to the detrimental effects of high pollution effects. This study examines the organic aerosol from a winter campaign in Beijing using hourly filter samples analysed by UPLC coupled with high-resolution orbitrap MS and automated identification against a compound database. The aim of this study is to investigate the evolution of aerosol compounds in more detail; analysing co-variance of compounds with common tracer compounds and gas-phase measurements to establish source apportionment.