Previous Releases
Below are details of previous announced releases:
Soho Project
We are leading the Soho Monitoring Study, which collects detailed traffic and movement, noise levels and air quality data from across Soho over twelve months.
The project aims to better understand the public realm across the neighbourhood. The data will help us understand spaces that are busy and those that are quiet, those that experience heavier vehicle traffic and those where pedestrians, areas of clean air and spikes in pollution dominate.
Five long-term unattended air quality monitors are installed to allow pollutant levels across Soho to be measured. These monitors will continuously record pollutant levels over 12 months. The long-term monitoring locations will be supported by low-resolution diffusion tube measurements across 20 sites. The monitoring will allow pollutant levels across Soho to be clearly presented and reviewed against recognised UK guidance.
We are now publishing the diffusion tube data through our Air Quality Diffusion Map, which is also available for download. It will be updated monthly.
We will publish the higher-resolution monitoring data as this becomes available.
Air Quality data download
Alongside diffusion tube data and diffusion tube bias-adjusted data published previously, sensor and reference monitoring site data are now available for download in a CSV file format:
- Breathe London (hourly) and Earthsense (every 15 minutes) data sources are available back to 2021.
- London Air Quality Network (LAQN) (hourly) data is available from 2018 onwards.
Full details are available on our air quality data download page.
Diffusion tube bias-adjusted data
The Westminster City Wide Survey bias-adjusted data for 2023 has now been loaded into our data platform.
In addition to accessing via the air quality data download page, it can be viewed on our air quality diffusion tube map.
School Street data
Our air quality data was collected from the Schools Streets trials, which ran from 2022 to 2023. You can view this using our Trend Analysis tool by:
- selecting 'All Sites'
- choosing the date range you are interested in
- selecting the school of interest
Historic Air Quality data
Where available, our Air Quality sensor/continuous monitoring station data has been loaded back to 2018. You can view this using our Trend Analysis tool by entering the date period you are interested by:
- selecting 'All Sites'
- choosing the date range you are interested in