Untreated cotton in tampons found to be excellent indicator of pollution under UV light.
Thames sewage: UK faces up to prospect of multimillion-pound EU fines
Thames sewage: UK faces up to prospect of multimillion-pound EU fines
Glow-in-the-dark tampons cheap and effective at finding river sewage
Thames sewage: UK faces up to prospect of multimillion-pound EU fines
Glow-in-the-dark tampons cheap and effective at finding river sewage