Caesium

Caesium is one of the radioactive fission products created within a nuclear reactor during its operation.

Caesium-137 is one of the major radioactive isotopes of caesium. It is a major radioisotope in the radioactive waste resulting from nuclear reactors.

Caesium-137 is radioactive for a long period of time (half-life is about 30 years) and can contaminate property, entailing extensive cleanup. It can also be absorbed into the food chain.

Source: GreenFacts

Element - Radiation - Radioactivity

GreenFacts Summary on the Chernobyl Nuclear Accident:

• 1. What was the extent of the Chernobyl accident?
• 3. How has the environment been affected by the Chernobyl accident?

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Chernobyl

Fukushima accident

Fukushima Consequences