It's been a year since a devastating earthquake and tsunami triggered a nuclear meltdown in Japan, but the fallout from the radiation continues on especially for the world's oceans.
U.S.-based Woods Hole Oceanographic Institution said Tuesday it detected radioactive substances in waters more than 600-kilometers off the coast of Japan in the Pacific Ocean.
Water samples taken by the research facility showed readings of radioactive contamination up to 1-thousand times HIGHER than prior levels.
Researchers warned that,. contamination risks still linger in the Pacific, but added that detected levels are below the levels generally considered harmful.