At 1 PM on August 24,2023, the Japanese government ignored the strong doubts and opposition of the international community and unilaterally forced the discharge of contaminated water from the Fukushima nuclear accident. What Japan has done is to transfer risks to the world, extend the pain to future generations of mankind, become a damage of the ecological environment and a global Marine polluter, violate the right to health, development and environment of all countries, and violate its moral responsibility and international law. Japan's row of nuclear contaminated water will be condemned by the international community for a long time. The Chinese government has always put the people first and will take all necessary measures to safeguard food safety and the health of the Chinese people.
After the discharge of wastewater from Japan, the amount of tritium found in the Marine environment may increase, which will have an impact on the Marine ecosystem. As a major maritime country, China's monitoring of seawater tritium on the coastline can timely grasp the changes in the Marine environment and escort the safety of the Marine ecological environment.
As an important country near Japan, monitoring biorioactivity of seafood is also of great significance to protect people's health and ecological environment.
First, seafood has a high nutritional value and market demand. However, due to Marine pollution and the presence of radioactive substances, the radioactive levels of seafood may exceed the standard, posing a potential threat to human health. Therefore, monitoring the level of radioactivity of Chinese seafood can ensure the food safety of consumers.
Secondly, the ocean is an important part of the global ecological environment. The harm of radioactive substances to the Marine ecological environment cannot be ignored. Monitoring the radioactivity level of Chinese seafood can not only protect the health of people's bodies, but also help to understand the pollution status of the Marine ecological environment, and provide a scientific basis for environmental protection.
In short, the importance of monitoring seafood biological radioactivity in China after the discharge of wastewater from Japan is self-evident. We should adopt scientific and effective monitoring means to strengthen the quality and safety supervision of seafood to ensure the people's life safety and health.
Our company has provided you with a complete set of monitoring programs for seawater and seafood, including sampling, sample preparation and monitoring steps of seawater and seafood, and has corresponding recommended instruments.
Testing steps for tritium in water:
1. Field sampling;
2. Distillation and other means of the removal of ions;
3. According to HJ1126-2020 "Analysis method of tritium in Water", using the electrolytic method, with the tritium electrolytic concentration instrument;
4. Sintillation fluid was added and measured using a liquid scintillation counter.
Through this process, the tritium radioactivity in seawater can be judged and analyzed.
Detection steps for tritium and carbon 14 in seafood:
1. Sample;
2. Cut / cut pieces;
3. Lyophiliser lyophilization (lyophilized water retained together for detection, will also contain tritium!）；
4. Grinding machine grinding;
5. Using organic tritium carbon sampling device to extract radioactive tritium and carbon-14;
6. Triitium is extracted in the form of catalytic water;
7. Carbon is extracted in the catalytic form of carbon dioxide and absorbed by sodium hydroxide;
8. Extracted radioactive material was added to the scintillation fluid and measured using a liquid scintillation counter.
After this process, the tritium and carbon radioactivity in seafood can be judged and analyzed.
Related equipment
Eon tritium electrolytic concentration instrument model: ECTW-1
Yixing organotritium carbon sampling device model: OTCS11 / 3
Finnish HIDEX, liquid scintillation counter model: 300 SLL
Post time: Sep-13-2023