Development of Non-road Mobile Source Emission Inventory for the Pearl River Delta Region
珠江三角洲非道路移动源排放清单开发

Based on the collected activity data and emission factors, the Pearl River Delta (PRD) regional non-road mobile source emission inventory was developed by categories with the use of appropriate estimation methods for different non-road mobile sources. The results show that the total emissions of SO2, NOx,VOC, CO and PMx from non-road mobile sources in the PRD region were about 6.52×104 t, 1.24×105 t, 4.54×103 t, 2.67×104 and 4.51×103 t, respectively. The marine source is the largest non-road mobile source contributor to SO2, NOx, CO and PMx emissions, accounting for 96.4%, 73.8%, 39.4% and 50.5%, respectively; Freighter and dry bulk carrier are important marine emission contributors, sharing 89.8%, 81.8%, 77.3%, 79.5% and 81.7% of the total marine SO2, NOx,VOC, CO and PMx emissions. The non-road mobile source has become the third largest SO2 and NOx contributor in the PRD region, accounting for about 8.6% and 13.5% of the regional total SO2 and NOx emissions.