A report (PDF link) tested bottled water in nine different countries and found that 242 out of 259 bottles contained small pieces of plastic. The report suggests that at least some of the plastic particles may be coming from the packaging or the bottling process.
Since there is little information on whether these microplastics pose a risk to human health, the World Health Organisation intends to review the existing evidence and identify areas for further research.
Read the full article here. See also the Foodsource resource How are food systems and health connected and influenced?