A WINTER NO2 SMOG EPISODE IN THE UK

A major NO2 (nitrogen dioxide) episode occurred in London, Englan during December 1991. During a 4-day period, urban background concentrations of this pollutant were the highest recorded in the since measurements began in the 1970s. Analyses of a broad range measured pollutants indicate that the episode was primarily cause motor vehicle emissions occurring during an extended period of co stable, anticyclonic conditions. It is demonstrated that, for UK episodes, there is a strong relationship between episode duration peak observed hourly average concentrations. The highest NO2 lev during the episode were observed during the nighttime. This observation is explainable, at least in part, by gas-phase oxidat of NO to NO2 at low temperatures. This may be an important mechanism for producing NO2 during episo periods in other temperate cities of the world. (A)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/13522310
• Corporate Authors:

  Elsevier

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  Kidlington, Oxford  United Kingdom  OX5 1GB
• Authors:
  • BOWER, J S
  • BROUGHTON, GFJ
  • STEDMAN, J R
  • WILLIAMS, M L
• Publication Date: 1994-2

Language

• English

Media Info

• Features: References;
• Pagination: p. 461-75
• Serial:
  • Atmospheric Environment
  • Volume: 28
  • Issue Number: 3
  • Publisher: Elsevier
  • ISSN: 1352-2310
  • Serial URL: http://www.sciencedirect.com/science/journal/13522310

Subject/Index Terms

• TRT Terms: Chemistry; Concentration (Chemistry); Exhaust gases; Urban areas
• Geographic Terms: United Kingdom
• Subject Areas: Materials;

Filing Info

• Accession Number: 00663283
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Created Date: Aug 24 2003 12:00AM