Harm of 1. to human body: Nuclear waste water contains a lot of radioactive elements, among which tritium content is the highest, followed by carbon 14, cobalt 60 and strontium 90. These elements degrade for a long time and are easily absorbed by marine organisms in marine sediments. Finally, these radioactive substances are collected into the human body through the food chain. When a certain dose is accumulated, human beings will either mutate or die painfully.

2. Harm to the economy: Before Japan officially discharged nuclear waste water into the sea, consumers began to panic about the safety of marine life, and the panic of consumers will not only cause a huge blow to Japan itself, but also cause a huge blow to the global fishery and aquatic product sales industry in the future.

3, causing marine pollution. When nuclear waste water is poured into the sea, the first thing that is polluted is the ocean. Water in the ocean will be mixed with nuclear waste, and fish will drink water full of nuclear waste. If their nuclear waste is not treated cleanly enough, it may lead to the death or mutation of fish.

4, causing fishermen to lose their jobs. Japanese fishermen must bear the brunt, because fishing is their main source of income. Without this source of income, their lives will be unsustainable.