A comprehensive inventory of atmospheric THMs emissions from open MSW burning in China is established. Emissions from 361 cities in 2013 are allocated into 0.5° × 0.5° grid cells. Future trends of THMs emissions till 2030 are projected with three control scenarios. Increasing proportion of waste incineration will result in increasing Hg emission. Collaborative effects of all proposals can bring in the largest reduction in THMs emissions.