Hewitt, CN (1992) Spatial distributions of nitrogen dioxide in an urban area. Atmospheric Environment. Part B. Urban Atmosphere, 25 (3). pp. 429-434.
Full text not available from this repository.Abstract
Fortnightly average NO2 concentrations have been measured at 49 sites in the small city of Lancaster, U.K., over a continuous 1-year period using passive diffusion tubes. At sampling sites on a congested main road in the city centre considerable spatial and temporal variability in concentrations was found. An annual mean concentration of 63 μgm−3 was found witha range of 12–222 μgm−3. The mean concentration in an adjacent main road was 58 μgm−3 with a range of 5–107 μgm−3. Rather less variability was seen in a suburban main road and in a suburban residential street, which had annual mean concentrations of 38 and 30 μm−3, respectively. Concentrations in a city centre pedestrian precinct decreased with distance from the main road, having an annual mean value of 30μm−3. The data suggest that the precise location of a sampling device may be crucial in determining whether or not a given NO2, concentration or standard is exceeded.
| Item Type: | Article |
|---|---|
| Journal or Publication Title: | Atmospheric Environment. Part B. Urban Atmosphere |
| Uncontrolled Keywords: | Nitrogen dioxide ; air quality standards ; siting criteria ; diffusion tubes |
| Subjects: | G Geography. Anthropology. Recreation > GE Environmental Sciences |
| Departments: | Faculty of Science and Technology > Lancaster Environment Centre |
| ID Code: | 22773 |
| Deposited By: | ep_ss_importer |
| Deposited On: | 13 Jan 2009 09:52 |
| Refereed?: | No |
| Published?: | Published |
| Last Modified: | 26 Jul 2012 16:06 |
| Identification Number: | |
| URI: | http://eprints.lancs.ac.uk/id/eprint/22773 |
Actions (login required)
| View Item |
