Cambridge Environmental Research Consultants, Cambridge, CB2 1SJ, UK
David Carruthers
Cambridge Environmental Research Consultants, Cambridge, CB2 1SJ, UK
Roderic L. Jones
Yusuf Hamied Department of Chemistry, University of Cambridge,
Cambridge, CB2 1EW, UK
Haitong Zhe Sun
Yusuf Hamied Department of Chemistry, University of Cambridge,
Cambridge, CB2 1EW, UK
Huan Liu
State Key Joint Laboratory of ESPC, State Environmental Protection Key Laboratory of Sources and Control of Air Pollution Complex, International
Joint Laboratory on Low Carbon Clean Energy Innovation, School of the Environment, Tsinghua University, Beijing, 100084, China
Qiang Zhang
Ministry of Education Key Laboratory for Earth System Modeling,
Department of Earth System Science, Tsinghua University, Beijing, 100084,
China
Emission estimates represent a major source of uncertainty in air quality modelling. We developed a novel approach to improve emission estimates from existing inventories using air quality models and routine in situ observations. Using this approach, we derived improved estimates of NOx emissions from the transport sector in Beijing in 2016. This approach has great potential in deriving timely updates of emissions for other pollutants, particularly in regions undergoing rapid emission changes.
Emission estimates represent a major source of uncertainty in air quality modelling. We...