In 2024, researchers analysed 62 human placentas for micro- and nanoplastics. They found them in all 62, and one plastic, polyethylene, made up around 54% of what they measured.
This guide covers where polyethylene and the other plastics they found show up in everyday life, what we know versus what we’re still investigating, and the swaps I’d prioritise first. Heat, wear and food contact come first. No panic, no perfection.