The garbage patch is a concentration of marine debris in the ocean. It consists mainly of
plastic objects with an approximate concentration of about 46,000 pieces per square mile,
according to the United Nations Environmental Programme 2006 estimates (UNEP). There
are five main garbage patches. The largest is referred to as the Great Pacific Garbage Patch
and consists of the Eastern Garbage Patch and the Western Garbage Patch. The first one
extends within the North Pacific Subtropical High, an area between Hawaii and California;
the second one is a small “recirculation gyre” between Japan and Hawaii. Also, floating
trash concentrates in certain areas of the Indian Ocean and the Atlantic Ocean