Polycyclic aromatic hydrocarbons (PAHs) are common by-products from combustion processes with adverse health effects. The Emissions Database for Global Atmospheric Research (EDGAR) and Peking University (PKU) both provide emission data for four PAHs: benzo[a]pyrene (BaP), benzo[b]fluoranthene (BbF), benz[k]fluoranthene (BkF), indeno[1,2,3-cd]pyrene (IcdP). There are differences in emission sources and calculation methods between the two datasets, resulting in differences in predicted values. Here, the Danish Eulerian Hemispheric Model (DEHM) is applied to compare the spatiotemporal difference and performance of these two datasets.