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  2. Ballast water discharge and the environment - Wikipedia

    en.wikipedia.org/wiki/Ballast_water_discharge...

    Ballast water discharges are believed to be the leading source of invasive species in U.S. marine waters, thus posing public health and environmental risks, as well as significant economic cost to industries such as water and power utilities, commercial and recreational fisheries, agriculture, and tourism. [11]

  3. Ballast water regulation in the United States - Wikipedia

    en.wikipedia.org/wiki/Ballast_water_regulation...

    Before the final ruling in ballast water standards in 2012, many vessels arriving from outside the EEZ were able to be exempted from safety regulations by exchanging ballast water mid-ocean. Vessels also had to report number of ballast water tanks, each tank's volume, and origin of the ballast water to be discharged.

  4. Ship ballast - Wikipedia

    en.wikipedia.org/wiki/Ship_ballast

    Diagram showing the water pollution of the seas from untreated ballast water discharges Ballast water discharges by ships can have a negative impact on the marine environment . The discharge of ballast water and sediments by ships is governed globally under the Ballast Water Management Convention , since its entry into force in September 2017.

  5. Ballast - Wikipedia

    en.wikipedia.org/wiki/Ballast

    Ballast, other than cargo, may be placed in a vehicle, often a ship or the gondola of a balloon or airship, to provide stability. A compartment within a boat, ship, submarine, or other floating structure that holds water is called a ballast tank. Water should be moved in and out from the ballast tank to balance the ship.

  6. Ballast Water Management Convention - Wikipedia

    en.wikipedia.org/wiki/Ballast_Water_Management...

    The International Convention for the Control and Management of Ships' Ballast Water and Sediments (Ballast Water Management Convention or BWM Convention) is a 2004 international maritime treaty which requires signatory flag states to ensure that ships flagged by them comply with standards and procedures for the management and control of ships' ballast water and sediments. [2]

  7. Ballast tank - Wikipedia

    en.wikipedia.org/wiki/Ballast_tank

    Cross section of a vessel with a single ballast tank at the bottom. A ballast tank is a compartment within a boat, ship or other floating structure that holds water, which is used as ballast to provide hydrostatic stability for a vessel, to reduce or control buoyancy, as in a submarine, to correct trim or list, to provide a more even load distribution along the hull to reduce structural ...

  8. Ballast water - Wikipedia

    en.wikipedia.org/?title=Ballast_water&redirect=no

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  9. Regrowth inside ballast tanks - Wikipedia

    en.wikipedia.org/wiki/Regrowth_inside_ballast_tanks

    This water, called ballast water, which contains aquatic organisms typical of the port of arrival, is stored in ballast tanks and is ultimately discharged at the port of departure when the ship is ready to be re-loaded. During this process, aquatic organisms capable of surviving in ballast water are released into new environments and can ...