The News That Matters about the Nuclear Industry Fukushima Chernobyl Mayak Three Mile Island Atomic Testing Radiation Isotope

Post-Fukushima reactor halt produces inexperienced nuclear plant workers in Japan

February 20, 2021

The suspension of nuclear reactors in Japan after the 2011 Fukushima disaster has kept many workers there from engaging in plant operations, resulting in inexperienced employees accounting for nearly a quarter of the workforce at plants, according to a Kyodo News tally.

Of 1,923 employees at 15 nuclear power stations as of November to December, 460 had no prior work experience at online plants, the tally based on data from 10 Japanese utilities showed nearly a decade after the magnitude-9.0 earthquake and a massive tsunami hit on March 11, 2011, and caused triple meltdowns at the Fukushima Daiichi plant. The crippled facility is not included in the 15 plants.

Photo taken in November 2014 shows a signboard reading “Nuclear power: energy for a bright future” in the northeastern Japan town of Futaba, which co-host the Fukushima Daiichi nuclear power plant crippled by the March 2011 Great East Japan Earthquake.

At four plants run by Tohoku Electric Power Co., Chubu Electric Power Co. and Chugoku Electric Power Co., those with no prior work experience make up more than 40 percent.

A total of 50 reactors were shut after the worst nuclear crisis since Chernobyl in 1986 for safety concerns. Prime Minister Yoshihide Suga has said his government will seek to promote the restart of reactors under his clean energy and environment initiatives.

But the nuclear power industry faces a challenge in resuming and running reactors, as utilities are not able to offer enough on-the-job training opportunities given that many reactors remain suspended, industry experts say.

The government implemented stricter regulations for restart to address safety concerns. Nine reactors since have been rebooted under the tighter rules as of Feb. 8.

The government has set a target for nuclear power generation to account for 20 to 22 percent of the country’s electricity supply by 2030, which requires restarting 20 to 30 reactors.

In the nuclear power business, 27 percent of the total workforce joined the 10 companies after the Fukushima disaster, as the industry seeks to pass on lessons learned from the catastrophe.


February 21, 2021 Posted by | Japan | , | Leave a comment

Data on nuclear studies, workers may have leaked from university

Hacked: a good news. Hopefully those hackers might release crucial important data, which would change us from Tepco B.S and Japanese government censored information.



OYAMA–Personal information and nuclear research, including studies concerning the crippled Fukushima No. 1 nuclear plant, might have leaked in a cyber-attack at the University of Toyama here, the school reported Oct. 10.

The leaked data could possibly affect 1,492 students, researchers and individuals from public organizations and companies who conduct joint studies with the institution’s Hydrogen Isotope Research Center.

We apologize for causing great trouble to associated organizations,” said Yasumaru Hatanaka, the university’s vice president.

However, the research that might have leaked, such as studies on water decontamination at the Fukushima nuclear plant, had all been previously presented at academic meetings, so there was no breach in confidentiality, the university said.

No malicious use of the data has been reported since the data breach came to light in June.

According to the university, the cyber-attack targeted a computer operated by a part-time employee specializing in tritium research at the center.

An e-mail containing malware was sent to both the worker and a professor with the facility in November 2015. The professor did not open the e-mail, but the employee did, causing the computer to become infected with a virus.

As a result, the employee’s computer became remotely accessible, and it made connections with four outside servers between November and June. The university’s investigation showed that the computer sent large amounts of data to two of these servers.

A further analysis of the computer found indications that at least 1,000 archive files had been created between last November and February.

Considering their size, nearly all the data stored in the computer may have been compressed into these files. Similar archive files were created using a different method in March, the university said.

The university became aware of the cyber-attack after an outside organization warned the school about suspicious network activities made by the employee’s computer.

October 14, 2016 Posted by | Fukushima 2016 | , , , | Leave a comment

Nuclear watchdog proposes raising maximum radiation dose to 250 millisieverts

Nuclear plant workers in Japan will be allowed to be exposed to more than twice the current level of radiation in emergency situations, according to the Nuclear Regulation Authority’s Radiation Council.

The radiation exposure limit will be raised from the current 100 millisieverts to 250 millisieverts in emergencies, the radiation council announced in a report released July 30.

The higher level is still only half of the accepted international safety level of 500 millisieverts set by the International Commission on Radiological Protection, an influential independent organization that provides guidelines on radiation protection, for rescue workers in emergency situations at nuclear facilities.

The new cap will be activated from April 2016 after revisions to the nuclear reactor regulatory law and the Industrial Safety and Health Law.

The limit was temporarily raised to 250 millisieverts by the radiation council following the triple meltdown at the Fukushima No. 1 nuclear power plant triggered by the Great East Japan Earthquake and tsunami in March 2011.

The decision was quickly made by the council members through e-mail discussions as the 100 millisieverts limit could have caused a shortage of workers tackling the emergency at the plant. Later, the limit was returned to 100 millisieverts.

Under the revised law, the exposure limit for plant workers will be immediately raised to 250 millisieverts when certain conditions arise, including the risk of radioactive materials leaking from the facility into the surrounding area.

The workers affected will include employees of utility companies and their contractors, inspection officers from the Secretariat of the NRA and other on-field workers.

Of the 174 workers who were exposed to radiation doses more than 100 millisieverts following the Fukushima accident, six were exposed to 250 millisieverts or more.

The radiation council decided that workers are protected if they wear masks and other gear even when exposed to 250 millisieverts. The health damage from acute radiation poisoning below that limit is negligible, it said.

The council’s report calls for nuclear plant operators to carefully explain to workers tackling emergency situations about their tasks and obtain their consent to work in such an environment.

It also requests utility companies to conduct proper training of workers, while one of the council members also called on them to conduct follow-up medical checks to detect cancer and other illnesses.

The report also acknowledges that nuclear plant workers could be required to engage in tasks that cause them to be exposed to more than 250 millisieverts in acute emergency situations.

At Kyushu Electric Power Co.’s Sendai nuclear power plant in Kagoshima Prefecture, which the company aims to restart in August, workers will carry out their tasks with an exposure limit of 100 millisieverts until the maximum limit is raised to 250 millisieverts.

A plant worker who has worked at nuclear facilities for 20 years said he suspects that workers from subcontractors will agree to work under the raised limit.

“The cancer checkups and other measures also sound to me as stopgap efforts to ease our anxiety,” he said.

Source: Asahi Shimbun

July 31, 2015 Posted by | Japan | , | Leave a comment