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IBBAC: Impact of Biogenic Emissions on Beijing Air Quality and Climate


>> Objectives

Due to its high population density and rapid economic growth, Beijing ranks among the most polluted cities worldwide. Besides the rising demand for reliable anthropogenic emission estimates reflecting the current air pollution status over this region, the estimation of natural fluxes and their effects on air pollution during summertime is also necessary, yet quite challenging.

According to current estimates, global natural emissions from plants contribute up to 85% to the total amount of the emitted volatile hydrocarbons (VOCs). An estimate of biogenic emissions of volatile organic compounds in Beijing region is necessary in order to gain insight in a number of environmental issues such as summertime smog, climate change, and environmental degradation, in the context of the difficult balance between economic prosperity and environmental concerns.

However, studies on biogenic VOC sources in China are quite few and past estimations are based on limited sets of available field data. This project aims at evaluating the role of biogenic VOC emissions on air pollution levels in the Beijing area during summertime. To achieve this goal we will:

  1. derive estimates of biogenic emissions over the Beijing region based on a synergistic approach combining:
    • advanced inverse modelling tools using the IMAGESv2 global chemistry-transport model (BIRA)
    • satellite remote sensing data of formaldehyde (HCHO) retrieved at BIRA
    • statistical downscaling in the regional-to-urban scale AURORA model operated by VITO, in order to obtain a high-resolution biogenic emission inventory
  2. intercompare the output of the three models used within this project, IMAGESv2/BIRA, AURORA/VITO and NAPQMS/IAP, and compare/validate with ground-based measurements at three stations in Beijing region which will be provided by IAP within this project
  3. perform air quality model assessments and sensitivity studies on the role of climate perturbations in order to evaluate the impact of biogenic emissions and biogenic emission changes on air quality, ozone, and secondary organic aerosol formation in the broader Beijing region.




>> Partners


Dr. Michel Van Roozendael
UV-VIS Observation Unit
Tel : ++3223730416
E-Mail :

Dr. Trissevgeni Stavrakou
Tel : ++3223730766
E-Mail :


Dr. Jean-Francois Muller
Tel.: ++322373366

Dr. De Smedt Isabelle
Tel.: ++322373407
E-Mail :

Dr. Maite Bauwens
Tel : ++3223730421,
E-Mail :

Avenue Circulaire, 3
1180 Brussels
Fax : ++3223748423




Ms. Lisa Blyth

Dr. Koen De Ridder
Tel : ++3214335968
E-mail :

Dr. Nele Veldeman,  
Tel. +32 14 33 67 46,
E-Mail :

Mr. Peter Viaene,
Tel. +32 14 33 67 44,
E-Mail :

Environmental Modelling Unit
Boeretang 200
B-2400 Mol
Fax : ++3214321185




Prof. Pucai Wang
Tel : ++86-10-82995061
E-mail :

Dr. Yu Huan
Tel : /

IAP, Institute of Atmospheric Physics;
Chinese Academy of Sciences
No.1 Nanertiao; Zhongguancun;
Haidian District Beijing 100029
People's Republic of China
Fax : ++86-10-82995073



is funded by

Belgian Science Policy Office


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