Ash Smith looking at the camera - he's got white hair, black eyebrows and is wearing a green T-shirt. He's white.

Dirty Business: The campaigners who inspired new Channel 4 show – BBC

February 27, 2026

Dirty Business: The campaigners who inspired new Channel 4 show BBCEnd the sewage pollution scandal Home – 38 DegreesSewage drama turns on the waterworks | Brief letters The GuardianDirty Business TV review — thrilling drama about Britain’s filthy water is a rallying call to arms Financial Times‘A national disgrace’: Readers fume over the UK’s sewage crisis exposed in Channel 4’s Dirty Business The Independent