Dear TfL I would like to request the figures that you record on monitors for air pollution levels over the last 5 years between Liverpool Street and Tottenham. I would like the monthly average of NO2 levels for the last 5 years from each monitor on the road between these two places. Please let me know if this is possible, and if not why this is not possible. If you could advise me on whether you need any more details that would be great also. Thank you very much.

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TfL Ref: 2042-1718

Thank you for your request received by Transport for London (TfL) on 25 October 2017 asking for information about the figures that you record on monitors for air pollution levels over the last 5 years between Liverpool Street and Tottenham.

Your request has been considered in accordance with the requirements of the Freedom of Information (FOI) Act  and our information access policy.  I can confirm we do not hold the information you require.

TfL are not responsible for the air quality monitoring network, this is one of the functions of the London Borough Councils and the Department for Environment, Food and Rural Affairs (Defra).  The information is publicly available at http://www.londonair.org.uk/london/asp/publicdetails.asp

In accordance with section 21 of the FOI Act, we are not obliged to supply you with a copy of the requested information as it is already accessible to you elsewhere.

If this is not the information you are looking for, or if you are unable to access it for some 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

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