The nuclear wastewater produced after the accident mainly contains the following radioactive elements:
1.Tritium (H): Tritium is an isotope of radioactive hydrogen that is highly radioactive and difficult to remove in the environment.
2.Caesium-137 (Caesium-137, 137CS): Caesium-137 is an isotope of radioactive cesium, which is highly radioactive and able to persist in the environment for a long time.
3.Strontium-90 (90SR): Strontium-90 is an isotope of radioactive strontium, which can enter the food chain and pose a threat to the human body and the ecological environment.
4.Carbon-14 (14c): Carbon-14 is an isotope of radioactive carbon that is present in all organic matter, but may be present in higher concentrations in nuclear wastewater.
5.Cobalt-60 (Cobalt-60, 60CO): Cobalt-60 is an isotope of radioactive cobalt with strong gamma radiation capabilities.
6.Iodine-131 (131i): Iodine-131 is an isotope of radioactive iodine that can enter the human thyroid gland and affect thyroid function.
The concentration of these radioactive elements in nuclear wastewater may vary depending on the treatment method and storage conditions. Japan** and TEPCO have said they will filter and treat the radioactive material to reduce its concentration and ensure that the wastewater discharged into the ocean meets international safety standards. However, some radioactive materials, such as tritium, may be difficult to remove completely due to technical and economic reasons.