According to new research, the results of which have been recently published in the journal "Ekonauka and Technology", fragments of plastic entering the global aquatic ecosystems tend to absorb some chemicals with which they come into contact in the water.
This means that any plastic, cast into the sea, is a dual threat to marine animals. Swallowing a piece of sea creatures can get both gastrointestinal injury from sharp edges of debris, and contamination with toxic substances, which had time to react plastic. This greatly increases the risk of death to marine life and accelerates its onset.
And even more dangerous are those plastics that have already started to decay, because they are more actively interact with chemicals, hit the water with the help of the man and his industrial activities.
To confirm their hypothesis, the researchers selected five samples of the most widely used plastics and loaded them into the sea water. The experiment showed that these residues are not just plastic can absorb toxic chemicals from the water, but also to continue the absorption of a few months. Thus, high-density polyethylene stops absorb persistent organic pollutants only after a period of approximately 44 months. More dangerous than previously recognized, and now are remnants of low density polyethylene and polypropylene.