1mL of PET bottled water – more than 100 million nanoplastics

An international research team, including the Norwegian University of Science and Technology, 

recently investigated bottled water.

They measured the concentration of nanoplastics in water bottles.

The research team published this research result in [Journal of Environmental Science and Technology].

The research team purchased and tested PET bottled water from four companies distributed in Norway.

As a result of filtering and analyzing bottled water through a fine glass fiber filter membrane,

1 ml of sample contained an average of 166 million nanoplastics.

Nanoplastics are pieces of plastic with a diameter of less than 1 μm, or 1/1000th of a mL.

An adult who drinks 2 liters of water per day consumes 120 trillion per year.

The research team explained that a child who drinks 1 liter of water a day 

can be considered to ingest 54 trillion nanoplastics per year.