https://retina.news.mail.ru/prev780x440/pic/28/aa/main42274780_8474ebd8fbcfd1e11cf007f1b0ebd4c1.jpg

It does not change.

The plastic that spent two decades on the seabed, scientists almost did not notice signs of decay, according to a study published in Scientific Reports.

each year the world produces about 380 million tons of synthetic polymers — plastics, but only a small part of them is processed. It is estimated that each year at least 10 million tons of plastic waste that ends up in the ocean.

For the study, researchers examined a huge number of samples of plastic debris on the ocean floor. The problem was that it was impossible to establish when exactly he fell in the water. Finally, the researchers were lucky — they found a bag with aluminum cans of sweet soda and a plastic box under cheese. As it was established, the drink was released in a limited edition from 1988 to 1996. This means that the discovery was in the water quite at least 24 years ago.

Chemical and bacteriological analysis showed that neither the package nor box is practically not subjected to fragmentation and degradation. When this bacteria on their surface was much smaller than in the surrounding sediments.

Anna Lysenko

Even more interesting about science and technology