Japan has decided to release more than one million tonnes of radioactive water from the Fukushima nuclear power plant into the sea.
Let's take a look at its potential impact on the environment as well as human health.
The plant’s operator, Tokyo Electric Power, plans to filter the contaminated water to remove harmful materials.
But some experts say that this can have a significant impact on human health and the environment as this still leaves tritium, which is a radioactive type of hydrogen that's hard to separate from water.
The Japanese government says it will then dilute the water until tritium levels fall below regulatory limits, saying it's not harmful in small amounts.
But a report done in 2011 by Canada's McMaster University says that tritium, even at low doses, could lead to an increased risk of mutation and cancer.
Local fishing communities, which have been against the plan for years, say the water’s release will undo years of hard work to rebuild consumer confidence in their seafood saying that it will have "catastrophic impact" on the industry.
"This is not just a problem for Japan alone, as this sewage would pollute the world's oceans."
Greenpeace Japan said that it gathered more than 180-thousand signatures from Japan and South Korea in a petition.
The group also strongly condemned the move by saying that Japan has opted for the cheap option, rather than using the best available technology to store and process the water over the long term.
Bae Eun-ji, Arirang News.