Chemical Compositions of PM₂.₅ Near a Major Ring Road in Beijing Before, During and After the 2008 Summer Olympic Games

Roadside PM₂.₅ samples were collected during three periods - before, during and after the 2008 Beijing Olympic Games. Samples were analyzed for organic carbon (OC), elemental carbon (EC), 25 elemental components and water-soluble ions. The OC/EC ratios between Olympic and non-Olympic periods, as well as between daytime and nighttime, indicated the effect of several control programs for diesel trucks in Beijing. A higher fraction of three leading water-soluble ions during the Olympic periods demonstrated the significant impact of regional pollutants on the roadside micro-environment. Several PM components, such as EC and anthropogenic pollutants, clearly rebounded after the Olympic Games, demonstrating the need for continued control of vehicles, stationary boilers and fugitive sources in Beijing.


  • English

Media Info

  • Media Type: Web
  • Features: References;
  • Pagination: pp 2748-2756
  • Monograph Title: CICTP 2014: Safe, Smart, and Sustainable Multimodal Transportation Systems

Subject/Index Terms

Filing Info

  • Accession Number: 01531210
  • Record Type: Publication
  • ISBN: 9780784413623
  • Files: TRIS, ASCE
  • Created Date: Jul 2 2014 3:04PM