Latest version最新版本

The MEIC model contains anthropogenic emissions of ten air pollutants and greenhouse gases from 1990 to 2015 for mainland China. The latest version is 1.2, released in February 2015.


Main updates in v1.2 compared with v1.0 :
1. Update to 2015;
2. Introduce unit-based operation hours for power plants;
3. Update technology distributions of industrial boilers;
4. Update control technology distributions of ferrous and non-ferrous industries;
5. Fix errors in the activity data of paint uses, chemical production and livestock;
6. Update sulphur content of residential coal;
7. Update the emission factors of power plants, industrial boilers and solvent utilization according to latest measured data; update CO2 emission factors of coal using year-to-year variations in calorific value.

1. 数据更新至2015年;
2. 电力部门计算引入逐机组发电小时信息;
3. 更新了工业燃煤锅炉的技术比例;
4. 更新了钢铁和有色金属行业的污染控制技术比例;
5. 修正了涂料、化工产品、家禽等部分活动水平的错误;
6. 更新了民用部门煤炭含硫量;
7. 根据最新的排放测试结果,更新了电力、工业锅炉、涂料使用过程的部分排放因子,同时燃煤CO2排放因子引入燃煤热值的年际变化。

Update history更新历史

February 2015, update to v1.2.
June 2012, release v1.0.


Online data在线数据

It is free to download following data on-line now: emissions data in years of 2008, 2010, and 2012 for version 1.2 and emissions data in years of 2008 and 2010 for version 1.0, including provincial and gridded data summarized in five sectors: power, industry, residential, transportation and agriculture. Monthly gridded emissions are provided with 1/4, 1/2, and 1 degree resolutions. NMVOC emissions are lumped into five mechanisms: SAPRC99, SAPRC07, CB05, CBIV and RADM2.


Customized data定制数据

The MEIC model provides customized emission products. Users can easily customize data in different resolutions, scales, pollutants, sources, years, and air quality models. The latest MEIC provides model-ready data which is compatible to many air quality models, such as NAQPMS, CMAQ, WRF-Chem, and CAMx. We also provide interfaces to couple with local emission inventories. Please contact us by email meic at, if you have any questions or comments and if you would like to know more information of MEIC.

MEIC模型可根据空气质量预报预警、城市空气质量规划等不同业务需求定制排放数据产品。MEIC模型可按不同年份、模型模拟区域、行业、时空分辨率提供对应的排放清单产品,并可提供与NAQPMS、CMAQ、WRF-Chem、CAMx等主流空气质量模型无缝对接的逐时排放数据。模型同时提供数据接口,实现本地排放清单耦合导入。如果您需要定制MEIC排放数据,请联系我们:meic at