Populus interviewed 835 adult (18+) residents in the Brentford & Isleworth constituency by telephone between 4 December 2017 and 4 February 2018 on behalf of Heathrow Airport. Results were weighted to be demographically representative of all adults in each constituency, and were also weighted by past election vote to be politically representative of all adults.

Fieldwork Date: 2017-12-04 - 2018-02-04
Published By: Heathrow Airport

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