Contaminated water is going to be released into the Pacific ocean.

South Korea on Monday expressed “grave concern” over an ocean release and China has urged Japan to prudently deal with the issue. 

Prudently 慎重に

https://www.bloomberg.com/news/articles/2021-04-12/japan-to-dump-treated-radioactive-fukushima-water-into-ocean

https://www.vice.com/en_us/article/pkbeay/japan-fukushima-radioactive-water

https://www.aljazeera.com/news/2021/4/13/japan-to-release-contaminated-fukushima-water-into-sea