Shipyard
Many studies have shown that painting is what generates almost half dangerous waste at a shipyard due to using high-pressure equipment to wash or remove any unwanted material that is on it like rust. Which will eventually make its way to the water and creates water pollution to the environment. Once these have compromised the surface of the hull the ship must go to the shipyard for maintenance. In a study in 2011 samples of sediments were collected from two sites in coastal marine area of Yongho Bay, one from the shipyard yard and the other 500m away. These results had analyzed that both samples contained metals that included Al, Fe, Li, V, Cr, Mn, Ni, Cu, Zn, As, Cd, Sn, and Pb. In addition, it had been confirmed that the concentration was higher in the first sample that was by the shipyard then the sample taking 500m away and was due to paint fragments applied to the steel ship hulls.
Admiralty Shipyard
A unique deep-sea research vehicle “Konsul” is the first Russian deep-diving vehicle of the third generation, capable of diving as deep as and working for 10 hours using a manipulator as well as lifting to the surface a load of up to . The construction of underwater vessels constitutes 70% of the total production volume of the shipyard. Out of all submarines built in the world, 15% by tonnage are produced at the Admiralty Shipyards.