Abstract: A method and apparatus for containment of a space adjacent the hull of a ship to protect the environment from polluting materials resulting from the abrasive blasting, spray painting and the like comprising, welding studs having integral connectors to the hull along a direction substantially fore and aft of the ship. Lines are supported and run relative to the studs. Sections of a shroud are connected to the lines and the lines are drawn to pull one end of the shroud sections proximal to the hull and the other end is fixed remote from the hull. Adjacent sections are secured along their sides. The entire space beneath the shroud and adjacent the hull containing the polluting materials is therefore separated from the environment.