Engineers at Faculty of Engineering made the discovery . Tampons glow under UV light when they have absorbed detergent . This enables experts to work out where pollution is coming from . Innovation could stop sewage being accidently shunted into rivers .
Engineers at the University of Sheffield made the discovery . Tampons glow under UV light when they have absorbed detergent . This enables experts to work out where pollution is coming from . Innovation could stop sewage being accidently shunted into rivers .