1. Centre for Atmospheric Chemistry, School of Earth, Atmospheric and Life Sciences University of Wollongong Wollongong New South Wales Australia
2. Now at Environment and Health Ramboll Novato CA USA
3. National Institute for Applied Statistics Research Australia, School of Mathematics and Applied Statistics University of Wollongong Wollongong New South Wales Australia
4. Now at Australian Bureau of Statistics Canberra ACT Australia