“Plastic pollution: ‘Stop flushing contact lenses down the loo'”

"They found 15-20% of US users simply flick these fiddly lenses down the drain via the bathroom sink or toilet. The Arizona State University study suggests that much of the plastic material then ends up in waste water treatment plants. The lenses are consequently spread on farmland as sewage sludge, increasing plastic pollution in the environment."

https://www.bbc.co.uk/news/science-environment-45222865

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