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.

Language

  • 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