THE IMPACTS OF THE GLOUCESTER SAFER CITY PROJECT ON AIR QUALITY - 1997-1998

TRL Ltd is monitoring the environmental effects of the Gloucester Safer City project. As part of this work, a city-wide network of monitoring sites has been set up to determine concentrations of nitrogen dioxide, PM10 and benzene in Gloucester. The network comprises 10 kerbside sites and a background site. This document reports on the first two years (1997 and 1998) of the air quality monitoring in Gloucester. In both years benezene concentrations at all of the sites were below the Air Quality Standard of 16.25 micrograms/cu m (5ppb). Over the monitoring period, the mean concentrations fell at the kerbside locations by 24% and at the background by 53%, which reflects the general decline in hydrocarbon emissions from traffic in Gloucester. For nitrogen dioxide, concentrations at the kerbside were close to or greater than the Air Quality Standard of 40 microgram/cu m. On average concentrations fell by 9% at the kerbside, which again reflects a decline in the emissions of oxides of nitrogen from traffic in Gloucester. However over the same period, nitrogen dioxide concentrations increased at the background site by 7%. Air quality monitoring is to continue until the end of 2001 largely as described in this report, except for additional sampling of kerbside PM10 and carbon monoxide. (A)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/09684107
• Corporate Authors:

  TRL

  Crowthorne House, Nine Mile Ride
  Wokingham, Berkshire  United Kingdom  RG40 3GA
• Authors:
  • CLOKE, J
  • DAVIES, G J
• Publication Date: 2001

Language

• English

Media Info

• Features: References;
• Pagination: 38 p.
• Serial:
  • TRL REPORT 488
  • Publisher: TRL
  • ISSN: 0968-4107

Subject/Index Terms

• TRT Terms: Air pollution; Aromatic hydrocarbons; Carbon monoxide; Continuous structures; Nitrogen oxides; Pollutants; Surveillance
• ITRD Terms: 2452: Air pollution; 7358: Aromatic compounds; 7391: Carbon monoxide; 9006: Continuous; 2442: Emission; 7380: Nitrogen oxide; 9101: Surveillance
• Subject Areas: Bridges and other structures; Environment;

Filing Info

• Accession Number: 00811473
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD, ATRI
• Created Date: Jun 7 2001 12:00AM