cesium

THREE YEARS AFTER: Decontamination planned for agricultural...
A high level of radioactive cesium has been detected in the mud of the Myotoishi reservoir in Motomiya, Fukushima Prefecture. (Asahi Shimbun file photo)
The central government plans to start decontaminating hundreds of long-neglected reservoirs for agricultural use in Fukushima Prefecture that have shown unusually high...
Health risk or not? Cesium levels high in hundreds of Fukushima...
Radioactive cesium of mind-boggling 370,000 becquerels per kilogram of soil has been detected in the mud of the Myotoishi reservoir in Motomiya, Fukushima Prefecture. The reservoir is ringed by homes and a community center.  (Shinichi Fujiwara)
FUKUSHIMA--Very high levels of accumulated radioactive cesium have been detected in the mud of hundreds of reservoirs used to irrigate farmland in Fukushima Prefecture, where...
Record cesium level found in groundwater beneath Fukushima levee
The Fukushima No. 1 nuclear power plant (Asahi Shimbun file photo)
A record level of radioactive cesium has been found in groundwater beneath a coastal levee east of reactor turbine buildings at the crippled Fukushima No. 1 nuclear power plant,...
Fukushima dental group to study baby teeth for radiation exposure
Children play in a sandbox in Koriyama, Fukushima Prefecture, in January 2012. (Asahi Shimbun file photo)
FUKUSHIMA--The prefectural dental association has started a five-year study to measure radiation levels in baby teeth to better determine the health effects of the 2011...
Cracks found in floor near Fukushima radioactive water tanks
Tanks holding radioactive water at the Fukushima No. 1 nuclear power plant (Asahi Shimbun file photo)
Two cracks were discovered in a concrete floor near radioactive water storage tanks on the grounds of the stricken Fukushima No. 1 nuclear power plant, the plant operator said...
Sludge designated radioactive waste for 1st time in Kanagawa
Radioactive sludge from water purification plants has been placed in temporary storage facilities in Tochigi Prefecture. (Provided by Tochigi prefectural government)
The Environment Ministry has classified 2.9 tons of sludge from Kanagawa Prefecture as radioactive waste derived from the Fukushima nuclear disaster, the first such designation ...
Large amount of cesium flowed into ocean after 2011 typhoon
The Abukumagawa river near its mouth to the Pacific Ocean in southern Miyagi Prefecture (Asahi Shimbun file photo)
The amount of radioactive cesium that flowed into the sea through a river running across central Fukushima Prefecture when a powerful typhoon hit in September 2011 totaled 6.2...
TEPCO: Fukushima leak likely water used to cool nuclear fuel
An aerial view of the Fukushima No. 1 nuclear power plant. From back left, the No. 1, No. 2, No. 3 and No. 4 reactor buildings are seen. (Asahi Shimbun file photo)
Radiation levels indicate the leak discovered within the stricken Fukushima No. 1 nuclear plant involves water used to cool melted nuclear fuel, Tokyo Electric Power Co. said...
Fish with very high levels of cesium found near Fukushima
Fishermen sort their catches after test fishing to obtain samples off the coast of northern Fukushima Prefecture in September. (Asahi Shimbun file photo)
A fish contaminated with extremely high levels of radiation was found in waters near the crippled Fukushima No. 1 nuclear power plant, a government-affiliated research...
Scientists develop method to wash most radioactive cesium from...
The Asahi Shimbun
KYOTO--Researchers say they have developed a new technology for efficiently isolating and removing fine particles that contain radioactive cesium from farm soil.
TEPCO forced to drain water overflow from typhoon at Fukushima...
Industry minister Toshimitsu Motegi, center, watches as a worker measures radiation levels in a water collection basin near the storage tank from where radioactive water leaked at the Fukushima No. 1 nuclear power plant, in August. (Pool)
Heavy rain from Typhoon No. 26 forced Tokyo Electric Power Co. to discharge rainwater Oct. 16 that was threatening to swamp the barriers that surround the radioactive water...
Cesium contamination increasing in water at port of Fukushima plant
The Fukushima No. 1 nuclear power plant and its harbor (Asahi Shimbun file photo)
Tokyo Electric Power Co. announced Oct. 12 that it has detected a rising level of radioactive cesium in seawater sampled from the mouth of the harbor of the devastated...
ANALYSIS: Contaminated water flowing into ocean despite Abe's claim
The Asahi Shimbun
Water contaminated with radiation is flowing out into the Pacific Ocean from a harbor at the Fukushima No. 1 nuclear plant despite assurances from Prime Minister Shinzo Abe...
TEPCO: 10 trillion becquerels of strontium may have leaked into...
The Fukushima No. 1 nuclear power plant in June (Asahi Shimbun file photo)
Tokyo Electric Power Co. calculated that up to 10 trillion becquerels of radioactive strontium and 20 trillion becquerels of cesium 137 were in contaminated water from the...
Cesium levels in Fukushima water 8 times higher than after disaster
The No. 1 reactor building, left, and the No. 2 reactor building are seen in this photo of the Fukushima No. 1 nuclear power plant taken on June 11. (Pool)
Tokyo Electric Power Co. has reported finding radioactive cesium levels in underground water at the crippled Fukushima No. 1 nuclear power plant that is eight times greater...
Cesium hotspots found in seabed east of Fukushima
The Asahi Shimbun
Radioactive cesium has formed hotspots on the seabed east of the Fukushima No. 1 nuclear power plant, the site of reactor meltdowns following the earthquake and tsunami...
Mystery objects with high radiation found on Fukushima coast
The Asahi Shimbun
In a coastal area long silent due to the Fukushima nuclear accident, the only sounds of human activity on June 18 were from workers removing rubble and continuing their...
Radioactivity levels higher in water deeper underground at...
The Asahi Shimbun
Radioactive cesium levels were much higher in water deep underground at the crippled Fukushima No. 1 nuclear plant than in samples taken closer to the surface, Tokyo Electric...
Waterborne radioactive levels in Fukushima plant pit unchanged...
Workers in the rain install underground walls to prevent contaminated groundwater from flowing into the ocean on July 22. (Pool)
Water in a pit on the grounds of the crippled Fukushima No. 1 nuclear power plant has been found to contain high levels of radioactive substances, the plant operator said July...
TEPCO now says 2,000 Fukushima workers exposed to high radiation...
Nuclear plant workers undergo radiation checks in Naraha, Fukushima Prefecture, in November 2011. (Asahi Shimbun file photo)
Estimated radiation doses in thyroid glands exceeded safe levels in nearly 2,000 people who worked at the stricken Fukushima nuclear plant, more than 10 times the number...