Laptev Sea major contaminant is associated with floating and sunken wood in the sea, due to decades of rafting activities. As a result, the phenol concentration in the Laptev Sea is the highest over the Arctic waters. Laptev Sea The Laptev Sea (; ) is a marginal sea of the Arctic Ocean. It is located between the northern coast of Siberia, the Taimyr Peninsula, Severnaya Zemlya and the New Siberian Islands. Its northern boundary passes from the Arctic Cape to a point with co-ordinates of 79°N and 139°E, and ends at the Anisiy Cape. The Kara Sea lies to the west, the
Severnaya Zemlya Sea Route in what was seen as the culmination of the Great Northern Expedition, an ambitious enterprise initially conceived by emperor Peter I the Great in order to map the whole of the northern coast of Russia to the east. On 3 September 1913 (22 August 1913 in the Julian calendar used by Russia at the time), members of Vilkitsky's expedition landed on what is now known as Cape Berg on October Revolution Island. They raised the Russian flag on the shore and named the new territory Tayvay Land (, "Zemlya Tayway"), after the first syllable of their icebreakers' names.