Request ID: FOI-1808-2324 Date published: 25 September 2023
You asked
F/O from 1379-2324
Hi,
your response is unfortunately not satisfying. I am looking for a clear comparison (before vs after) of the amount of pollution in the tube stations that you've cleaned using the money from the announcement.
I would be interested in calculating a cost of cleaning to pollution reduction ratio.
We answered
TfL Ref: 1808-2324 Thank you for your further request received by Transport for London (TfL) on 29 August 2023 asking for information about Tube station pollution. Your request has been considered in accordance with the requirements of the Environmental Information Regulations and our information access policy. I can confirm that we hold some of the information you require. You asked: I am looking for a clear comparison (before vs after) of the amount of pollution in the tube stations that you've cleaned using the money from the announcement. I would be interested in calculating a cost of cleaning to pollution reduction ratio. The only information we hold which matches your request is available on our website using the links below. We undertake annual dust monitoring at 24 locations, details of the locations and results are published on the TfL website. The results go back to December 2018. https://tfl.gov.uk/corporate/publications-and-reports/environment-reports https://content.tfl.gov.uk/simulated-passenger-journeys-2019.pdf - December 2018 https://content.tfl.gov.uk/dust-monitoring-april-2019.pdf - April 2019 https://content.tfl.gov.uk/dust-monitoring-february-2020.pdf - February 2020 https://content.tfl.gov.uk/train-operator-dust-monitoring.pdf - October 2021 https://content.tfl.gov.uk/dust-monitoring-lu-stations.pdf A further report - including station and on-train monitoring from 2023 - will be available on the website later in 2023. We do not have any comparison tables to offer at this stage. If this is not the information you are looking for, or if you are unable to access it for any reason, please do not hesitate to contact me. Please see the attached information sheet for details of your right to appeal as well as information on copyright and what to do if you would like to re-use any of the information we have disclosed. Yours sincerely Sara Thomas FOI Case Management Team General Counsel Transport for London
