Hazardous smog is a very serious issue in China and currently a focus of great attention. CERC's Managing Director Dr. David Carruthers gave keynote presentations at the International Urban Transport Pollution and Modelling conference in Tianjin on the 8th December 2016. The conference was hosted by the Department of Environmental Science of Nankai University, with support from CERC China. During the conference, tunnel and street canyon modelling, nesting in regional models, shipping emissions, air quality forecasting, emergency response modelling and hazardous releases were discussed. Experts from across China attended, including the cities of Tianjin, Shanghai, Hangzhou, Beijing, Nanjing, Urumqi and Hong Kong.