Creatures in deepest parts of oceans found containing toxins


  • Crustaceans like Hirondellea Gigas, living about 33,000 ft down in the Pacific Ocean are lately found to be polluted by PCBs and PBDE chemicals.
  • Scientists conducted their study by catching creatures in the Mariana Trench in the Western Pacific, which is the deepest point on the seabed.
  • They are shocked by the high levels of poison.
  • Scientists stated that the reason for the high concentration may be the trash or the remains of contaminated fish that sink and build up on sea-beds and provide food for the scavengers.


  • Polychlorinated Biphenyls are a group of persistent organic pollutants (POPs) that were used in electrical equipment and Polybrominated Diphenyl ethers are organobromine compounds used as flame retardants.
  • In 2001, at the Stockholm Convention, the governments of many States decided to outlaw the PCBs because of health and environmental concerns.
  • In 2009, at the Geneva Convention, the PBDEs were also included in the list.


– News post compiled by Ayushi Singh



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