Output details

Effect of wind direction and speed on the dispersion of nucleation and accumulation mode particles in an urban street canyon

This work demonstrated that the nucleation mode particles are highly variable and difficult to model compared with accumulation mode particles. For the first time, the cut-off wind speed values for both modes were derived from novel fast response measurements and a semi-empirical model was developed. This information and the sub-model is of great importance to both the academic community (including aerosol science and air quality modellers) and policy makers for improving the existing dispersion models of nanoparticles and understanding the dispersion behaviour of different size ranges in complex urban settings.