"Drinking Boiled Tap Water Reduces Human Intake of Nanoplastics and Microplastics"

https://pubs.acs.org/doi/10.1021/acs.estlett.4c00081

"Boiling hard water (>120 mg L–1 of CaCO3) can remove at least 80% of polystyrene, polyethylene, and polypropylene NMPs size between 0.1 and 150 μm."