WIT Press


Evaluation Of Traffic Related Nitrogen Dioxide Data In Surrey

Price

Free (open access)

Paper DOI

10.2495/AIR000361

Volume

42

Pages

10

Published

2000

Size

928 kb

Author(s)

S.J. Hughes, E.E. Hellawell and G. Strongitharm

Abstract

In Surrey, car ownership and traffic flows are amongst the highest in the country. The local borough councils have been monitoring NO] levels since 1993. This paper presents and discusses this information with the aid of a Geographic Information System (GIS). Data from ten fixed monitoring sites are analysed and three of these sites, all within a busy urban town, are discussed in detail. The results indicate no significant annual change in NO] levels from 1993-1999. However, one site does show more variability on a monthly basis. The data from all ten sites are combined with traffic flow information and represented spatially using the GIS. The results highlight potential NO] pollution 'hot spots' where the mean annual concentration exceeds 21 ppb. The work forms part of a wider research effort aimed

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