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Climate and environmental safety: The Fukushima water release

Aug 7, 2023

Welcome to Green Chronicles! Today, we discuss a critical environmental issue that has been garnering global attention – Japan’s plan to release over 1 million tonnes of treated water from the Fukushima Daiichi nuclear power plant into the ocean. While the International Atomic Energy Agency (IAEA) has approved the discharge, concerns have been raised by local fishing communities and neighbouring countries. Join us as we explore the implications of this decision on climate and environmental safety.

The Fukushima Water Release Plan

The Fukushima Daiichi nuclear power plant experienced a devastating triple meltdown in March 2011 following a powerful earthquake and tsunami, marking one of the worst nuclear crises since Chernobyl. The aftermath left the plant with more than 1.3 million tonnes of water stored in massive tanks, used for cooling damaged nuclear fuel. The water has undergone filtration through Tokyo Electric Power’s (Tepco) advanced liquid processing system, known as Alps, which removed most radioactive elements, except for tritium, an isotope of hydrogen challenging to separate from water.

Japan’s plan involves gradually releasing the treated water into the Pacific Ocean, one kilometre from the shoreline via an undersea tunnel. The water will be diluted with seawater to reduce the concentration of tritium below internationally approved levels.

Environmental and Health Concerns

The IAEA’s safety review indicates that the planned discharge would have “a negligible radiological impact on people and the environment.” However, concerns persist, especially among local fishing communities and neighbouring countries like China. China has labelled the plan “extremely irresponsible” and called for its suspension.

Japanese fishing communities worry about the potential destruction of over a decade of rebuilding their industry, as consumers may be hesitant to purchase fish and other produce from the region. To address these concerns, Fukushima authorities have implemented rigorous radiation testing regimes, but public confidence remains a challenge.

Tritium and Its Risks

Tritium is considered relatively harmless as it does not emit enough energy to penetrate human skin. However, when ingested through seafood consumption, for instance, it can increase cancer risks. The government and Tepco claim that the gradual release of treated water, diluted with seawater, will ensure minimal environmental and health impacts.

Moving Forward

The Fukushima water release plan, expected to take 30 to 40 years to complete, still requires official approval from Japan’s nuclear regulatory body. Despite the IAEA’s safety review, it is crucial for Japan to address concerns from local communities and neighbouring countries. Transparent communication, rigorous monitoring, and regular updates will be essential to maintaining public trust and ensuring the safety of marine ecosystems and human health.

Conclusion

The Fukushima water release decision carries immense environmental implications and demands cautious action. As we navigate the challenges of nuclear waste disposal and climate change, we must prioritize transparency, scientific evidence, and international cooperation. A united effort to safeguard our oceans and mitigate potential risks will play a crucial role in creating a sustainable and secure future.

Let’s continue to be vigilant stewards of our planet, working together to address environmental challenges and build a greener, safer world for generations to come.

References: IAEA Report on Fukushima Water Release Scientific American – Tritium Risks

https://www.theguardian.com/world/2023/jul/04/fukushima-china-calls-for-suspension-of-japanese-plan-to-release-radioactive-water-into-sea