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
Arctic Ocean Hydrographic Expedition on currents, ice conditions, climate, and magnetic phenomena. In 1913 the hydrographic expedition of the Arctic Ocean discovered the large Emperor Nicholas II Land —now Severnaya Zemlya (Northern Land), the last significant geographical discovery on the globe. On 3 September 1913 (22 August 1913 in the Julian calendar used by Russia at the time), members of the expedition landed on what is now known as Cape Berg on present day October Revolution Island. They raised the Russian flag on the shore and named the new territory "Emperor Nicholas II Land", (Russian: "Zemlya Imperatora Nikolaya II"), after Emperor Nicholas II of