Tampons may not be an obvious scientific tool, but engineers from the University of Sheffield in the UK have been using them to identify where waste water from baths, washing machines, sinks and showers is polluting our rivers and streams.
Watch out: how to spot evidence of pollution on waterways - Planet
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Jack Dish Plumbing
Glow-in-the dark tampons could help make our rivers cleaner - BBC News
Watch out: how to spot evidence of pollution on waterways - Planet
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Glow-in-the-dark tampons are being used to fix bad plumbing
🎈 Public Lab: Tampon Testing for Wastewater