The YRD Emission Inventory

Overview >

The Yangtze River Delta (YRD) Air Pollutant Emission Inventory is a new anthropogenic and biogenic emission inventory for the YRD region (covering Jiangsu, Anhui, Zhejiang and Shanghai) for the year 2017. It is jointly developed by Nanjing University, Shanghai Academy of Environmental Sciences and Jiangsu Provincial Academy of Environmental Science in 2021 and supported by the Major Joint Research Program of the National Natural Science Foundation of China (NSFC) and the Key Program for Coordinated Control of PM2.5 and Ozone for Jiangsu Province. The inventory is oriented to the needs of refined and dynamic characterization of emissions at the regional scale. By integrating multi-source data and improving the emission estimation method for typical sources, the resolution and accuracy of emission inventories at the regional scale are significantly improved.

The inventory currently provides gridded data (0.1° × 0.1°) from anthropogenic sources, which enables multiscale modeling of air quality by chemical transport models. It includes both gaseous species and aerosol species: SO2, NOx, CO, NMVOC, NH3, PM10, PM2.5, BC and OC. Emissions are aggregated into five sectors: power, industry, residential, transportation, and agriculture. The industry sector includes iron and steel, building materials, chemical and petrochemical, painting, rubber and plastics manufacturing, pharmaceuticals, non-ferrous metals, textile manufacturing, packaging and printing, other industries, architectural coatings, pesticide use, vehicle maintenance and repair, and other solvent use. The residential sector includes residential energy consumption, catering, dry cleaning, and hospital disinfectants. The transportation sector includes motor vehicles, construction machinery, shipping, agricultural machinery, and domestic aviation. The agriculture sector includes livestock, fertilizer use, soil background, nitrogen-fixing plants, and human feces.

If you have any questions, please contact Yu Zhao ( in Nanjing University.

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

Citation >

Emission Inventory for the YRD region

An J, Huang Y, Huang C*, et al. Emission inventory of air pollutants and chemical speciation for specific anthropogenic sources based on local measurements in the Yangtze River Delta region, China. Atmospheric Chemistry and Physics, 21, 2003-2025, 2021.

Zhou Y, Zhao Y*, Mao P, et al. Development of a high-resolution emission inventory and its evaluation and application through air quality modeling for Jiangsu Province, China. Atmospheric Chemistry and Physics, 17, 211-233, 2017.

Emission inventory for power sector

Zhang Y, Bo X, Zhao Y*, et al. Benefits of current and future policies on emissions of China’s coal-fired power sector indicated by continuous emission monitoring. Environmental Pollution, 251, 415-424, 2019.

Emission inventory for non-road machinery (agricultural machinery)

Zhang J*, Liu L, Zhao Y, et al. Development of a high-resolution emission inventory of agricultural machinery with a novel methodology: A case study for Yangtze River Delta region. Environmental Pollution, 266, 115075, 2020.

Emission Inventory of NH3 for agricultural sources

Zhao Y*, Yuan M, Huang X, et al. Quantification and evaluation of atmospheric ammonia emissions with different methods: a case study for the Yangtze River Delta region, China. Atmospheric Chemistry and Physics, 20, 4275-4294, 2020.

Emission inventory of anthropogenic NMVOC

Zhao Y*, Mao P, Zhou Y, et al. Improved provincial emission inventory and speciation profiles of anthropogenic non-methane volatile organic compounds: a case study for Jiangsu, China. Atmospheric Chemistry and Physics, 17, 7733-7756, 2017.

Emission inventory of biogenic NMVOC

Wang Y, Zhao Y*, Zhang L, et al. Modified regional biogenic VOC emissions with actual ozone stress and integrated land cover information: A case study in Yangtze River Delta, China. Science of the Total Environment, 727, 1-12, 2020.

Emission inventory for biomass burning

Yang Y, Zhao Y*. Quantification and evaluation of atmospheric pollutant emissions from open biomass burning with multiple methods: A case study for Yangtze River Delta region, China. Atmospheric Chemistry and Physics, 19, 327-348, 2019.