Request ID: FOI-0812-2122 Date published: 18 August 2021
You asked
Please release under the FOIA and in relation to EIR for All London areas:
The Air quality data being obtained via Videalert (owned by Marston Holdings from 2019) and all other like for like systems that can capture pollution readers showing - the location of the AQ readings, the dates, locations and the AQ data itself for the past 3 years.
Please release all data you hold for AQ readings that have been recorded in the London Borough of Enfield.
Please release the data sets recoverable from the Videalert systems that are sent to TFL showing each type of data this system feeds into.
Please release all London Specific data sent by handheld AQ monitors operated by Civil Enforcement Officers on the roads, that’s been sent over to the TFL.
We answered
Our Ref: FOI-0812-2122
Thank you for your request received on 22 July 2021 asking for information about air quality data.
Your request has been considered in accordance with the requirements of the Environmental Information Regulations and our information access policy.
TfL do not hold air quality monitoring data directly. Real-time air quality data across London is publicly available on the London Air Quality Network (LAQN - https://www.londonair.org.uk/ ), which includes more than 100 monitoring sites. An additional 30 sites located across London but not part of the LAQN are also available on the Air Quality England website (https://www.airqualityengland.co.uk ). Both sites provide detailed hourly data for all monitoring sites, as well as yearly aggregated statistics.
We are not aware of any information from handheld air quality monitors being sent to TfL.
If this is not the information you are looking for, or if you are unable to access it for some reason, please feel free to contact me.
Please see the attached information sheet for details of your right to appeal.
Yours sincerely
Gemma Jacob Senior FOI Case Officer FOI Case Management Team General Counsel Transport for London
