Yes

Contamination spread within the facility: Yes
INES-event
INES 1

Fuel fail and emission from research reactor

Fuel rods were unloaded October 17 2016, and placed in an open container in the handling compartment. The reactor was then in shutdown. On October 20th increased levels of noble gasses were detected in the filters from the handling compartment. The fuel in the handling compartment was inspected and several faults on fuel rods were detected.
These were moved to a storage container on October 24, however the container was discovered to not be leak tight. The levels of I-131 and I-132 in the Reactor hall were still increasing.

Category: Research Reactor Norway »

INES-event
INES 2

Inadvertent damage of a Se-75 source

On December the 12th, 2016, a Se-75 source was inadvertently damaged during re-pair work on faulty radiography equipment. The work was performed in Düsseldorf region in North Rhine-Westphalia by a specialized company within a controlled area. The source contained about 1.3 Terabecquerel Se-75. The radioactive substance was released during the repair work and contaminated persons and zones within and out-side of the controlled area. Besides the two workers performing the repair work, other persons were also contaminated.

Category: Radiation Source Germany »

INES-event
INES 1

Loss and dispersion of radioactive source (Eu-152, 2006)

On May 29th, 2006, the Eu-152 radioactive source with an activity of 25 mCi at 10/1995 was lost when being kept at a temporary storage facility. At this moment, the factory was under repairment. At 10h30 of May 31st, 2006, the police office informed that the the radioactive might be kept at No 628, Bạch Đằng street, Hai Bà Trưng district, Hà Nội (an garbage collection area), The radioactive source container had been broken, causing contamination to the house.

Category: Radiation Source Vietnam »

INES-event
INES 1

A sealed radioactive Cs-137 source contaminated the premises of waste management company

Event Abstract:
A sealed radioactive Cs-137 source contaminated the premises of waste management company and also the neighboring rooms used by Finnish Radiation and Nuclear Safety Authority (STUK). The event was found out on 7 March 2016.

The source, activity presently 360 MBq, had been used in a factory in Finland for level gauging and was delivered to waste management company as radioactive waste. When the gauge was received by the company, one of the staff tried to open the source shield in order to remove the actual cesium source for disposal. He did not have information or other indication that the source might not be intact. During the handling of the source contamination was released into the room where gauge was handled and also to adjacent rooms and air exhaust ventilation ducts.

Category: Radiation Source Finland »

INES-event

Contaminated water being transferred to turbine building of unit 3 from 1000 tons notch tank was leaking from the cracked pressure hose

On 29 May, 2015, TEPCO found that contaminated water being transferred to turbine building of unit 3 from 1000 tons notch tank was leaking from the cracked pressure hose.
TEPCO stopped the inappropriate transfer of contaminated water.
The estimated volume of the leaked water is approximately 7 m3.
Although the leaked water flowed into the drainage which led to the port there has been no significant change in radioactivity of the ocean that raises any concern about influence to health and the environment.

Category: Power Reactor Japan »

INES-event

Leakege of Contaminated Water from the Top Plate of a Tank at B Area (South)

On 2 October, 2013, TEPCO found a water dropping from around the top plate of B area (south) tank (No.5 tank at Group A in B area), in where treated water from the desalination apparatus is stored, at Fukushima Daiichi NPS.
The leaked water was not only dropping inside the dike, but also dropping to outside of the dike at B area (south) via the scaffold installed around the tank for inspection.
Because it cannot be denied that the water leaked from the top plate of the tank flowed into the drainage channel via the side ditch nearby, and leaked into the sea, TEPCO performed water-stop measures

Category: Power Reactor Japan »

INES-event

Leakage of Contaminated Water from a Desalination System

Approximately 11 m3 amount of water leakage occurred from a
pipe joint of desalination system (reverse osmosis membrane, RO-3) inside the temporary warehouse on 9 October, 2013.
The water has retained in the dike installed in the warehouse.
The radioactivity concentration of the leakage water was 34kBq/cm3 by totall beta nuclides.
Out of eleven workers who were working in the warehouse, six workers had radioactive material on their bodies, and five workers had no radioactive material on their bodies.

Category: Power Reactor Japan »

INES-event

Leakage of Contaminated Water from a Flange of Water Pressure Measuring instrument

On 6 February,2014, TEPCO found that the water treated by Simplified Active Water Retrieve and Recovery System (SARRY, cesium removal facility) and Reverse Osmosis Desalination Facility (RO) was leaking from the flange of water pressure measuring instrument equipped to the water pipe in which the water was running to the reactors unit 1 to 3 for their cooling.
The leaked water was flowing into the underground nearly under the water pressure measuring instrument.
The water leakage from the flange was stopped by means of closing the valve attached between the flange and the water pipe.
The amoun

Category: Power Reactor Japan »

INES-event

Leakega of Contaminated Water from the Upper Part of Tank C-1 in H-6 Tank Area

At 23:25 (Japan time) on 19 February, 2014, TEPCO found that water was leaking from the upper part of Tank C-1 in H-6 Tank Area, which has stored the water that was condensed by RO (reverse osmosis desalination facility) after the treatment by SARRY (cesium removal facility), to the dike surrounding H-6 Tank Area and to the outside of the dike through the rainwater drainpipe running from the upper part of Tank C-1 to the ground surface beyond the dike.
At 05:40 (Japan time) on 20 February, 2014, TEPCO succeeded in stopping the water leakage by means of closing the valves installed between Tank

Category: Power Reactor Japan »

INES-event

Leakage of Contaminated Water from Two Notch Tanks

On 2 June, 2014, NRA’s resident inspector found that contaminated water was leaking from the bolt portion of the two tanks in 4,000 tons notch tank group in the contaminated water tank area.
The water leakage was stopped by means of lowering the water level of the leaking tank by transferring the stored water of the leaking tanks to another notch tank.
The amount of the water, which leaked to the outside of dike was approximately 3.5m3.
The concentration of radioactive materials in the leaked water was 72 kBq/L (Total Beta)
There has been no contamination of the ocean that raises any con

Category: Power Reactor Japan »