INTRODUCE THE NEGATIVE INFLUENCE IN VIETNAM IF JAPAN DISCHARGES THE NUCLEAR SEWAGE TO PACIFIC
| Main Author: | Dai-Long Ngo-Hoang |
|---|---|
| Format: | Article Journal |
| Bahasa: | eng |
| Terbitan: |
, 2021
|
| Subjects: | |
| Online Access: |
https://zenodo.org/record/3898462 |
Daftar Isi:
- Since the Fukushima Daiichi nuclear accident, which was precipitated by the 2011 Tohoku earthquake and tsunami on March 11, 2011, radioactive wastewater has been dumped into the Pacific Ocean. The majority of the radioactive materials were released into the sky immediately following the incident, with 80 percent eventually settling over the Pacific (and some over rivers). Since then, there has been groundwater leakage, which the nuclear facility officially confirmed in 2013. Water treatment began in 2013 as the “Advanced Liquid Processing System” become operable, which remove most radionuclides except tritium. In 2021, the Japanese cabinet approved the dumping of the water into the Pacific over a course of 30 years. Japan recently announced plans to discharge over 1.2 million tons of radioactive water from the Fukushima Daiichi Nuclear Power Plant (FDNPP) into the Pacific Ocean. The contaminated water can pose a threat to marine ecosystems and human health. To assess the plan's impact, we created a three-dimensional global model to follow the movement and dispersion of tritium emitted from the FDNPP's radioactive water. The pollution scenarios were simulated for four release durations (1 month, 1 year, 5 years, and 10 years). According to the modeling results, for short-duration scenarios (1 month and 1 year), the peak plume with high tritium content drifted with the currents and eventually reached the northeastern Pacific. The greatest plume of contaminated water was confined to coastal locations east of Japan in the long-duration scenarios (5 and 10 years). Since 2013, there have been tritium groundwater leakage to the land side of the Fukushima Dai-ichi nuclear power reactors. From the end of 2013 until the end of 2019, groundwater was continuously collected, with an average tritium content of about 20 Bq/L. Based on tritium data supplied by Tokyo Electric Power Company Holdings (TEPCO) (17,000 points), the cause of the leak was either I leak from a polluted water tank that happened between 2013 and 2014, or (ii) a tritium leak that had spread widely over an impervious layer under the site. Vietnam also intends to build nuclear power stations, with 13 reactors set to be completed by 2030. As a result, by 2035, the number of nuclear power facilities in Asia is predicted to nearly triple. As a result, if the aforementioned occurrence occurs, it can be used as a reference lesson.