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Inner Ultra Low Emissions Zone Expansion 2021
The Ultra Low Emission Zone will be expanded from the 25 October 2021 to include the area up to the North and South circular roads (from the Congestion Zone). ULEZ was... -
Ultra Low Emissions Zone 2019
The central London Ultra Low Emission Zone (ULEZ) was introduced to clean up London’s most polluted air. It started on 8 April 2019, operates in the existing central London... -
Traffic Count
Traffic count from 8 counter located around Calderdale. Please note Sdate - indicates the date and time the count was taken. Cosit - camera ID number which indicates the... -
Diffusion Tube Data
Diffusion tubes are small, relatively inexpensive air pollution (nitrogen dioxide) monitors. They are small plastic tubes, open at one end with a gauze at the other end. The... -
NI Air Quality
Air pollution results from the introduction of a range of substances into the atmosphere from a wide variety of sources. It can cause both short term and long term effects on...