“the PNAS paper didn’t just convert microplastic units to nanoplastic units. The techniques did allow for the detection of a greater amount of plastic in the water, but the implications of that were played up in the media in the most dire way possible. The WashingtonPost headline referenced “100 to 1000 times more plastics.” The subhead of that article proclaims: “A new study finds that ‘nanoplastics’ are even more common than microplastics in bottled water.” In that article we are told, “People are swallowing hundreds of thousands of microscopic pieces of plastic each time they drink a liter of bottled water, scientists have shown—a revelation that could have profound implications for human health.”
Emphasis on “could.” There are no good studies on what the effects of these particles are. Most of the media outlets that covered the nanoplastic discovery disclose that there’s never been a documented effect on health from the particles, but they still can’t resist framing the discovery with maximum alarm.”