A 2018 study by Orb Media, a nonprofit investigative journalism organization, examined eleven different bottled water brands across the world, finding that all of them contained some degree of microplastic contamination.

Using a special dye that binds to plastic, the researchers used a special light to highlight the dyed particles in the water samples, and determined their nature using an infrared spectrometer. The result is an average of 325 microplastic particles present per liter of bottled water.

Image of sea water contaminated by plastic particles.

And of the plastic particles discovered, ninety-five percent measured between 6.5 and 100 microns in size – small enough to cross the gut into the body. This means that the vast majority of the microplastics are small enough to pass through veins in the intestines, pancreas, and spleen to enter the liver and kidneys.

And when comparing microplastic debris around 100 microns in size, about the diameter of a human hair, bottled water samples contained nearly twice as many pieces of microplastic per liter (10.4) than found in tap water samples (4.45).

To read the complete report, please visit https://orbmedia.org/stories/plus-plastic/.