Articles | Volume 13, issue 16
Atmos. Chem. Phys., 13, 8265–8283, 2013

Special issue: The Mount Tai Experiment 2006 (MTX2006): regional ozone photochemistry...

Atmos. Chem. Phys., 13, 8265–8283, 2013

Research article 22 Aug 2013

Research article | 22 Aug 2013

Overview of the Mount Tai Experiment (MTX2006) in central East China in June 2006: studies of significant regional air pollution

Y. Kanaya1, H. Akimoto*,1, Z.-F. Wang2, P. Pochanart1, K. Kawamura3, Y. Liu2,1, J. Li2,1, Y. Komazaki1, H. Irie1,***, X.-L. Pan1, F. Taketani1, K. Yamaji1,****, H. Tanimoto4, S. Inomata4, S. Kato5, J. Suthawaree5, K. Okuzawa3, G. Wang3,*****, S. G. Aggarwal3,******, P. Q. Fu3,2, T. Wang6, J. Gao6, Y. Wang2, and G. Zhuang7 Y. Kanaya et al.
  • 1Research Institute for Global Change, Japan Agency for Marine-Earth Science and Technology, 3173-25 Showa-machi, Kanazawa-ku, Yokohama 2360001, Japan
  • 2LAPC, Institute for Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China
  • 3Institute of Low Temperature Science, Hokkaido University, Sapporo 0600819, Japan
  • 4National Institute for Environmental Studies, Tsukuba 3058506, Japan
  • 5Tokyo Metropolitan University, Hachioji 1920397, Japan
  • 6The Hong Kong Polytechnic University, Hong Kong, China
  • 7Fudan University, Shanghai 200433, China
  • *now at Asia Center for Air Pollution Research, Niigata 9502144, Japan
  • **now at: National Institute of Development Administration, Bangkok 10240, Thailand
  • ***now at: Chiba University, Chiba 2638522, Japan
  • ****now at: Kobe University, Kobe 6580022, Japan
  • *****now at: Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710075, China
  • ******now at: National Physical Laboratory, New Delhi 110012, India

Abstract. We conducted an intensive field campaign at the summit of Mt. Tai (36.26° N, 117.11° E, 1534 m above sea level), Shandong Province, located at the center of central East China, during the period 28 May to 30 June 2006, to study seasonal maxima of regional air pollution with respect to ozone (O3) and aerosols. The specific objectives, campaign design, and major findings are summarized. High concentrations of O3 and its precursors, and aerosols, were detected and studied in the context of annual variations. Most importantly, we identified that emissions from regional-scale open crop residue burning after the harvesting of winter wheat, together with photochemical aging, strongly increased the concentrations of O3, aerosols, and primary pollutants in this month of year. Studies of in situ photochemical activity, regional source attribution of O3, O3–aerosol interactions, validation of satellite observations of tropospheric NO2, behaviors of volatile organic compounds and organic/inorganic aerosol species, loss rates of black carbon (BC), and instrument inter-comparisons are also summarized. The observed BC levels must have a strong impact on the regional climate.

Final-revised paper