The dumping of so much radioactive water into the ocean conjures up fears of mutated sea life and contamination of the human food chain, but experts said the radiation will be quickly diluted, minimizing risk.
"To put this in perspective, the Pacific Ocean holds about 300 trillion swimming pools full of water and they're going to release about five swimming pools full of water.
So hopefully the churning of the ocean and the currents will quickly disperse this so that it gets to very dilute concentrations relatively quickly," said Timothy Jorgensen, chair of the radiation safety committee at Georgetown University Medical Center.
"It's a considerable amount of water, but the immensity of the Pacific Ocean will quickly dilute this amount of water to harmless levels,"
John Till, president of Risk Assessment Corp., similarly cited the vastness of the ocean in helping to minimize harm, and said he does not expect to see any permanent effects on marine life, even close in to the plant.