Location ID: UKA00306 / GB0647A
Environment Type: Urban Traffic
Defra Region: South West
Notes: The monitoring station is located in the basement of a property adjacent to the A4 trunk road which runs from Bristol to Reading. This is a busy two lane two-way road which is subject to frequent congestion. The monitoring station is located approximately 150 metres from a set of traffic lights. The majority of the buildings surrounding the site are three to four storeys creating street canyons within the immediate vicinity.
Measurements taken at this site:
Hourly mean Nitrogen dioxide (µgm-3)