Ammonia emission inventory for China (PKU-NH3)

Overview >

The PKU-NH3 inventory, led by Peking University (Yu Song), provides gridded ammonia emissions at 0.1° spatial resolution for China during 1980‒2018. This inventory is developed by a bottom-up approach that combines long-term yearly provincial/county-scale statistical data and localized emission factors. The monthly ammonia emissions are categorized into nine sectors: livestock, synthetic fertilizer application, recycle of crop residue (indoor combustion + compost), minor agricultural sectors (agricultural soil + nitrogen-fixing crop + excretion of rural populations), open biomass burning, waste disposal, gasoline vehicles, diesel vehicles, and industry.

If you have any questions, please contact Dr. Mingxu Liu (, Prof. Xin Huang ( or Prof. Yu Song (

Readme >

  • The PKU-NH3 emission inventory is restricted to non-commercial purposes. Any uses of PKU-NH3 by business organizations are regarded as commercial purpose which needs prior authorization.
  • Users are not permitted to distribute the PKU-NH3 data to any third-party.
  • User must ensure the data integrity and independence when using PKU-NH3. Without explicit and prior authorization, no organization or individual is allowed to integrate any forms of the PKU-NH3 data into other emission products or models.
  • Papers, reports or products using the PKU-NH3 data should cite the related publications of PKU-NH3.

Citation >

Huang, X., Song, Y., Li, M., Li, J., Huo, Q., Cai, X., Zhu, T., Hu, M., and Zhang, H., A high-resolution ammonia emission inventory in China, Global Biogeochem. Cycles, 26, GB1030, doi:10.1029/2011GB004161, 2012.

Kang, Y., Liu, M., Song, Y., Huang, X., Yao, H., Cai, X., Zhang, H., Kang, L., Liu, X., Yan, X., He, H., Zhang, Q., Shao, M., and Zhu, T.: High-resolution ammonia emissions inventories in China from 1980 to 2012, Atmos. Chem. Phys., 16, 2043–2058,, 2016.