Mostly plastic comes from bottled water, but small, almost invisible pieces of plastic are also found in seafood, beer and salt, according to Australian Newcastle researchers.
The conclusion is based on 52 studies reviewed and is the first to try to estimate the importance of the microplastics that each human being receives itself. For a year, that's a quarter of a kilo.
– Plastics pollute not only our seas and waterways and kill marine life, they exist in all of us, says Marco Lambertini, director general of the World Wildlife Fund (WWF).
Researchers still do not know if and how microplastics affect us. However, by calculating the cumulative value, the researchers hope they will eventually be able to calculate their effects. The WWF wants to see global action against plastic debris in nature and that the countries of the world are committed to combat it.
In the last two years, so much plastic has already been produced as before in world history, and growth is expected to continue at 4% annually by 2025. More than three quarters end up as rubbish, and a third of it ends in nature where it is spread ashore, in rivers and seas.