MIX Asian emission inventory was developed by the MEIC teamMIX亚洲人为源排放清单正式发布
MEIC team recently released an Asian emission inventory, MIX, in years of 2008 and 2010. MIX was developed to provide up-to-date model-ready emissions for multiple chemical transport models and climate models. Integrating latest MEIC, REAS2, PKU-NH3, and CAPSS emission inventories, MIX covers ten air pollutants and greenhouse gaseous (SO2, NOx, CO, NMVOC, NH3, PM10, PM2.5, BC, OC and CO2) with a solution of 0.25 degree at Asia scale. MIX recently has been used to support MICS-Asia (Model Inter-Comparison Study for Asia) and TF HTAP (Task Force Hemispheric Transport of Air Pollution) projects as the base emission inventories for modeling. Gridded emissions of MIX can be accessed here.
The MEIC model contributes to the national emission inventory guidelines MEIC模型为国家排放清单编制技术指南体系提供支撑
The development of a complete emission inventory is an essential step in an air quality management process. To guild local government, China’s Ministry of Environmental Protection (MEP) recently issued a series of air pollutants emission inventory guidelines for developing national and local emission inventories. The guidelines consist of four types of air pollutants (i.e., PM2.5, VOCs, NH3 and PM10) and four emission sources (i.e., highway vehicles, off-highway, biofuel and dust). The MEIC team in Tsinghua University, as the technical supporter, intensively participated systematic design of the guidelines and also proposed guidelines in details.
China’s MEP initiated the “emission inventory guideline” project since 2013, after the occurrence of two severe air pollution episodes. Prof. HE Kebin, chair of the MEIC team, took charge of technical work of the project, and proposed working procedure for emission inventory establishment. HE raised that individual emission inventory, in terms of air pollutants or sources, should be developed firstly over China. As the methods are widely understood and accepted, the final comprehensive guideline for different pollutants from multi-sources, with the accurate spatial and temporal information from point sources, then can be implemented, replacing the separated ones. So far, eight emission guidelines have been successfully issued and widely used in local governments. The MEIC team was in charge of the guidelines of PM2.5 and PM10 and participated preparation of several others. Moreover, faced with the gradual higher quality of emission inventory demand from local government, the MEIC team currently is beginning to compile the guidelines for comprehensive emission inventory which include different pollutants from multi-sources and offers high spatial and temporal resolutions.