News On Japan

Worker Suffers Internal Radiation Exposure

SAGA, May 12, 2025 (News On Japan) - A male worker cleaning Reactor Unit 3 at the Genkai Nuclear Plant in Saga Prefecture was found to have suffered internal radiation exposure, marking the first such confirmed case at Kyushu Electric, the company announced on Sunday.

The incident occurred on May 10th during regular inspections at the Genkai plant. The worker, employed by a partner company, was cleaning the reactor vessel lid when a radiation check conducted before leaving the controlled area detected contamination near his face.

Further measurements led to the conclusion on May 11th that the worker had been internally exposed to a small amount of radioactive material.

The exposure level was measured at 0.02 millisieverts—about one percent of the annual average natural radiation dose of 2.1 millisieverts. The worker is not experiencing any health issues.

This is the first time Kyushu Electric has confirmed an incident involving internal radiation exposure.

Two other workers who were cleaning the lid alongside him were not exposed. The company is currently investigating the cause.

Source: RKB毎日放送NEWS

News On Japan
POPULAR NEWS

Japan began applying a new numerical alcohol threshold for dangerous driving offenses on July 21, introducing a clearer standard for cases involving impaired driving that could lead to fatal accidents.

Prime Minister Sanae Takaichi's government approved its first annual basic economic and fiscal policy on Tuesday, pledging "responsible and proactive fiscal policy" and envisioning about 370 trillion yen in public- and private-sector investment in strategic industries through fiscal 2040.

Breathtaking 4K footage filmed from a helicopter offers a sweeping aerial view of Mount Fuji and its majestic surrounding landscape.

A covert network of shuttle tankers is carrying crude through the increasingly dangerous Strait of Hormuz as renewed fighting between the United States and Iran disrupts shipping and raises concerns over how Japan will secure the oil it needs.

Russian Deputy Foreign Minister Andrey Rudenko has criticized moves by Japanese and Ukrainian companies to cooperate on drone technology, warning that such ties would be regarded by Moscow as a "clear hostile act."

MEDIA CHANNELS
         

MORE Sci-Tech NEWS

Japan is moving closer to testing technology designed to generate solar power in space and transmit the electricity wirelessly to Earth, with researchers now conducting final checks on a flight model for an upcoming satellite experiment.

Fires involving lithium-ion batteries, including those used in mobile battery packs, are occurring at a record pace in Japan this year, with 179 incidents reported by the end of May, according to the Tokyo Fire Department.

JAXA successfully landed a small experimental vehicle for a reusable rocket on July 11, marking a step toward technology that could increase the frequency of space launches while helping reduce costs.

Japan is facing renewed questions over how to secure electricity while dealing with mounting nuclear waste, as power demand is expected to rise with the spread of generative AI and the government considers replacing as many as five nuclear reactors by the 2040s.

JAXA's Hayabusa2 probe made its closest approach to the asteroid Torifune on July 5, passing at high speed about 800 meters from the asteroid's center while conducting a flyby survey to examine its shape and surface materials.

A fossil discovered in Osaka has led to Japan’s first finding of its kind, raising the possibility that a giant marine predator believed to have swum in the seas around the Kansai region about 70 million years ago was a previously unknown species.

Researchers around the world are turning their attention to mitochondria, the energy-producing structures inside cells, as new discoveries suggest they may hold important clues to slowing aging, preventing disease and extending healthy life.

Strong earthquakes have continued to shake parts of Japan in recent weeks, with 11 temblors measuring lower 5 or above on the Japanese seismic intensity scale recorded across the country since April 2026.