Japan to dump radioactive Fukushima water into the Pacific

In 2011, Japan was struck by a massive earthquake and tsunami, leading to a nuclear crisis at the Fukushima plant. Three reactors melted down, releasing radioactive material. Efforts to decontaminate the site have been ongoing, with most isotopes removed except tritium. The Japanese government plans to release 1.23 million tons of stored radioactive water into the ocean by 2022, sparking opposition from environmental and fishing groups. However, many scientists believe the risk is low.

What measures have been taken to deal with the radioactive isotopes in the water?

How much radioactive water is Japan's government planning to release into the ocean?