Soures and emissions of air pollutants in Beijing (AIRPOLL-Beijing)

UK principal investigator: Professor Roy Harrison, University of Birmingham
Chinese principal investigator: Professor Kebin He, Tsinghua University

WP1: Three Dimensional Spatial Analyses

WP1 will provide a 3D air pollutant field over representative regions of Beijing. Spatially resolved measurements will be made using recently developed readily deployable low cost measurement nodes, measuring gas phase species (NO, NO2, O3, CO, SO2, total VOCs, CO2), size revolved particles (0.4-20 um) and meteorological parameters (2D wind, T, RH).

WP2: Receptor Modelling Studies

This work package will identify and apportion the sources of air pollutants through a wide range of chemical composition measurements. Receptor modeling is a highly powerful and commonly-used approach to source apportionment, whereby the contributions of various sources to pollutants measured in situ are quantitatively estimated based on the measurement data alone, rather than invoking knowledge of the source strengths.

WP3: Emission Quantification

In this WP, we aim to provide a high resolution emission inventory of air pollutants in Beijing. We will enhance the existing inventories for Beijing and the surrounding region by improving the underlying activity and emission factor database and its spatial resolution.

WP4: Top-Down Fluxes Inferred from Satellite Data

This WP aims to quantify the flux of NO2, SO2 and HCHO in Beijing and surrounding areas.

WP5: Chemistry-Transport Modelling

This WP will provide a year-long source apportionment of air pollutants in Beijing and surrounding areas using a chemistry transport model and a hybrid receptor and CTM model.

WP6: Synthesis and Integration

An essential part of this research project will be to synthesis and integrate the results from the different components, with the broad aims of greatly increasing the reliability of the emissions inventory, providing a clearer distinction between advected regional pollution and the impact of local sources, and quantifying the role of secondary pollutant formation/chemical destruction in influencing the air pollution climate of Beijing.