I was born in Australia, but went to university in Auckland, New Zealand where I did a PhD on the aqueous chemistry of sulphur dioxide in the atmosphere. I was until recently a Professor in Atmospheric Chemistry at the University of East Anglia, U.K. and have served as a senior editor of Atmospheric Environment in 1990. I am convinced that environmental pollution is not merely a matter of environmental chemistry. The smells have to be smelt. Painting and poetry can be as informative as a scientific description. I am really excited to be in Hong Kong as it offers great potential to explore the way we are exposed to air pollutants and consider how such exposures might be reduced. I remain interested in atmospheric sulphur chemistry that formed the subject of my PhD in the early 1970s and have just completed a major review of the biogeochemical cycling of organosulfides.