It is claimed the adverts for single-use vapes are 'misleading' because many end up in landfill.
The "green awareness" adverts for Elfbar vapes are carried on the side of some London buses and on bus stands in the capital.
Anna Diski, plastics campaigner at the charity, said: "The truth is these products are one of the new defining images of our single-use throwaway culture. A TfL spokesperson said it worked with advertisers to "ensure any e-cigarette campaign running on our estate complies with the latest rules by the ASA and has appropriate messaging".
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