Draft version (TEDS5.0) of emissions on 2000 baseline year was finished in last year, the main object of this year’s project is to review the draft version emissions data, further QA/QC and sensitivities were conducted, and to update to more reasonable results, which is called TEDS5.1. Base on the revised year 2000 emissions and actual activities statistics of emission sources, the future year’s emissions trends were review and repredicted too. For the final revised version TEDS5.1 emissions of year 2000, except for CO, emissions difference from TEDS5.0 for other pollutants are about 1~3%, revised CO emissions in TEDS5.1 is about 21% less than TEDS5.0. The difference between emission sources is more significant for NMHC. Total emissions were 319,000 Mt/year of PM10; the majority of the PM10 emissions are from fugitive road dust and industry sources, which contribute 28% and 29% respectively. Total emissions were 228,000 Mt/y of SOx, industry sources account about 93%. Total emissions were 499,000 Mt/y of NOx, industry sources and mobile sources account for 57% and 43% separately. Total emissions were 913,000 Mt/y of NMHC, the majority of the NMHC emissions are from industry usage, mobile sources and a broad range of miscellaneous sources, including consumer products, architectural coating and pesticide application which contribute for 49%, 19% and 32% respectively. Total emissions were 829,000 Mt/y of CO; mobile sources are major contributors of CO (80%). Total emissions were 1,300 Mt/year of Pb, industry sources were major sources of Pb. About 34% of VOC emissions were from biogenic sources emissions, isoprene emissions account for 46%. NH3 emissions were estimated in TEDS5.1 too. Total emissions for year 2000 is 186,000 Mt/y, agriculture fertilize emission is the major source of NH3 which contributes about 45%, the secondary contributor of NH3 is pasturage sources account for 39%.

Point source,area source,mobile source,biogenic source,emission inventory,emission growth,emission reduction