The World Health Organisation is now investigating whether drinking these microplastics – which previous research also found in tap water – is bad for us.
So should consumers and businesses which provide bottled water for their staff be worried?
Plastic has dominated the recent headlines, from the research that suggests the amount of plastic in the ocean will treble in a decade, to a study warning about the safety of bottled mineral water.
Roger Green, of ACE Recycling, said a recent study by scientists at the State University of New York tested over 250 bottles of mineral water from 11 different brands.
Said Roger: "The study found all the mineral water bottles were contaminated by potential harmful particles of microplastic.
The recent study conducted was only focused on the safety of the water and the bottles regarding the contamination of microplastics.
With this in mind, your tap water may be safer and kinder on your body than bottled water.
What about BPA-free bottles?
Fluorene-9-bisphenol (BHPF) is a BPA substitute which has been introduced for the production of so-called ‘BPA-free’ plastics.
Workplaces can make it easier for staff by having water stations available which can also help to cut the amount of waste your business creates too.