Fukushima Daiichi Status Updates

On 8 November 2018, Japan provided the IAEA with a copy of a report on the discharge record and the seawater monitoring results at the Fukushima Daiichi Nuclear Power Station during October which the Ministry of Foreign Affairs has sent to all international Missions in Japan.

The report contains information on discharges from the subdrain and groundwater drain systems, as well as on groundwater bypassing conducted during the month of October. In both cases, in advance of the action, TEPCO analyzes the quality of the groundwater to be discharged and announces the results. These results confirm that the radiation level of sampled water are substantially below the operational targets set by TEPCO.

On 8 November 2018, Japan provided the IAEA with a copy of a report on the discharge record and the seawater monitoring results at the Fukushima Daiichi Nuclear Power Station during October which the Ministry of Foreign Affairs has sent to all international Missions in Japan.

The report contains information on discharges from the subdrain and groundwater drain systems, as well as on groundwater bypassing conducted during the month of October. In both cases, in advance of the action, TEPCO analyzes the quality of the groundwater to be discharged and announces the results. These results confirm that the radiation level of sampled water are substantially below the operational targets set by TEPCO.

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On 10 October 2018, Japan provided the IAEA with a copy of a report on the discharge record and the seawater monitoring results at the Fukushima Daiichi Nuclear Power Station during September, which the Ministry of Foreign Affairs has sent to all international Missions in Japan.

The report contains information on discharges from the subdrain and groundwater drain systems, as well as on groundwater bypassing conducted during the month of September. In both cases, in advance of the action, TEPCO analyzes the quality of the groundwater to be discharged and announces the results. These results confirm that the radiation level of sampled water are substantially below the operational targets set by TEPCO.

On 10 October 2018, Japan provided the IAEA with a copy of a report on the discharge record and the seawater monitoring results at the Fukushima Daiichi Nuclear Power Station during September, which the Ministry of Foreign Affairs has sent to all international Missions in Japan.

The report contains information on discharges from the subdrain and groundwater drain systems, as well as on groundwater bypassing conducted during the month of September. In both cases, in advance of the action, TEPCO analyzes the quality of the groundwater to be discharged and announces the results. These results confirm that the radiation level of sampled water are substantially below the operational targets set by TEPCO.

Close x Read Update →

On 5 September 2018, Japan provided the IAEA with a copy of a report the discharge record and the seawater monitoring results at the Fukushima Daiichi Nuclear Power Station during August, which the Ministry of Foreign Affairs has sent to all international Missions in Japan.

The report contains information on discharges from the subdrain and groundwater drain systems, as well as on groundwater bypassing conducted during the month of August. In both cases, in advance of the action, TEPCO analyzes the quality of the groundwater to be discharged and announces the results. These results confirm that the radiation level of sampled water are substantially below the operational targets set by TEPCO.

On 5 September 2018, Japan provided the IAEA with a copy of a report the discharge record and the seawater monitoring results at the Fukushima Daiichi Nuclear Power Station during August, which the Ministry of Foreign Affairs has sent to all international Missions in Japan.

The report contains information on discharges from the subdrain and groundwater drain systems, as well as on groundwater bypassing conducted during the month of August. In both cases, in advance of the action, TEPCO analyzes the quality of the groundwater to be discharged and announces the results. These results confirm that the radiation level of sampled water are substantially below the operational targets set by TEPCO.

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On 6 August 2018, Japan provided the IAEA with a copy of a report the discharge record and the seawater monitoring results at the Fukushima Daiichi Nuclear Power Station during July, which the Ministry of Foreign Affairs has sent to all international Missions in Japan.

The report contains information on discharges from the subdrain and groundwater drain systems, as well as on groundwater bypassing conducted during the month of  July. In both cases, in advance of the action, TEPCO analyzes the quality of the groundwater to be discharged and announces the results. These results confirm that the radiation level of sampled water are substantially below the operational targets set by TEPCO.

On 6 August 2018, Japan provided the IAEA with a copy of a report the discharge record and the seawater monitoring results at the Fukushima Daiichi Nuclear Power Station during July, which the Ministry of Foreign Affairs has sent to all international Missions in Japan.

The report contains information on discharges from the subdrain and groundwater drain systems, as well as on groundwater bypassing conducted during the month of  July. In both cases, in advance of the action, TEPCO analyzes the quality of the groundwater to be discharged and announces the results. These results confirm that the radiation level of sampled water are substantially below the operational targets set by TEPCO.

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On 4 July 2018, Japan provided the IAEA with a copy of a report the discharge record and the seawater monitoring results at the Fukushima Daiichi Nuclear Power Station during June, which the Ministry of Foreign Affairs has sent to all international Missions in Japan.

The report contains information on discharges from the subdrain and groundwater drain systems, as well as on groundwater bypassing conducted during the month of  June. In both cases, in advance of the action, TEPCO analyzes the quality of the groundwater to be discharged and announces the results. These results confirm that the radiation level of sampled water are substantially below the operational targets set by TEPCO.

On 4 July 2018, Japan provided the IAEA with a copy of a report the discharge record and the seawater monitoring results at the Fukushima Daiichi Nuclear Power Station during June, which the Ministry of Foreign Affairs has sent to all international Missions in Japan.

The report contains information on discharges from the subdrain and groundwater drain systems, as well as on groundwater bypassing conducted during the month of  June. In both cases, in advance of the action, TEPCO analyzes the quality of the groundwater to be discharged and announces the results. These results confirm that the radiation level of sampled water are substantially below the operational targets set by TEPCO.

Close x Read Update →

The Japanese Government has provided the IAEA with a report that summarizes the events and highlights the progress related to recovery operations at the Fukushima Daiichi Nuclear Power Station. The IAEA provided its assessments, which are contained in full at the end of the report.

Groundwater control

The IAEA notes the assessment of the Japanese Committee on Countermeasures for Contaminated Water Treatment relating to the contribution of land-side impermeable walls towards a significant reduction in the ingress of water.

Fuel removal from the spent fuel pools in Units 2 and 3

The IAEA notes the ongoing progress toward fuel removal from the spent fuel pools in Units 2 and 3. The IAEA also notes the commitment of Japan to safety as the first priority.

Off-site decontamination

The IAEA acknowledges the report by the Government of Japan on this matter. The IAEA also recognises the progress in the transportation of removed soil and waste to the Interim Storage Facility.

Sea area monitoring results

Based on the information provided by Japan, no significant changes were observed in the monitoring results for seawater, sediment and marine biota during the period covered by this report. The levels measured by Japan in the marine environment are low and relatively stable. For the purpose of public reassurance, the IAEA encourages the continuation of sea area monitoring, particularly considering the ongoing authorized discharges of treated and monitored groundwater into the ocean.

Sea area monitoring data quality assurance

The IAEA continues to assist the Government of Japan in ensuring that the regularly updated Sea Area Monitoring programme is comprehensive, credible and transparent. To test the sampling and analytical performance of the Japanese laboratories for the analysis of radionuclides in seawater, sediment and fisheries samples, the IAEA organised proficiency tests annually and interlaboratory comparison exercises biannually for seawater and annually for sediment and fisheries samples for the period 2014-2016. Beginning with 2017 all exercises are organised once every year. The reporting on the seventh interlaboratory comparison exercise and the fourth proficiency test are currently ongoing. Seawater, marine sediment and fish samples from coastal waters in the Fukushima Prefecture, which were jointly collected by IAEA and Japanese experts in October 2017, were analysed as part of this seventh interlaboratory comparison exercise. The eighth interlaboratory comparison exercise will be organised in the second half of 2018.

The IAEA considers that the extensive data quality assurance programme helps to build confidence of the stakeholders in the accuracy and quality of the sea area monitoring data[1].

Food products

Based on the information provided by the authorities of Japan, the situation with regard to the safety of food, fishery and agricultural production continues to remain stable. No significant changes were observed since the previous report. Monitoring foods, appropriate regulatory action and public communication are helping to maintain confidence in the safety of the food supply. Food restrictions continue to be revised and updated as necessary in line with the food monitoring results. This indicates the continued vigilance of the authorities in Japan and their commitment to protecting consumers and trade.

Based on the information that has been made available, the Joint FAO/IAEA Division understands that measures to monitor and respond to issues regarding radionuclide contamination of food are appropriate, and that the food supply chain is controlled effectively by the relevant authorities.

__________

[1] A report on the on the first three years of the interlaboratory comparison exercise activities was published in July 2017.

The Japanese Government has provided the IAEA with a report that summarizes the events and highlights the progress related to recovery operations at the Fukushima Daiichi Nuclear Power Station. The IAEA provided its assessments, which are contained in full at the end of the report.

Groundwater control

The IAEA notes the assessment of the Japanese Committee on Countermeasures for Contaminated Water Treatment relating to the contribution of land-side impermeable walls towards a significant reduction in the ingress of water.

Fuel removal from the spent fuel pools in Units 2 and 3

The IAEA notes the ongoing progress toward fuel removal from the spent fuel pools in Units 2 and 3. The IAEA also notes the commitment of Japan to safety as the first priority.

Off-site decontamination

The IAEA acknowledges the report by the Government of Japan on this matter. The IAEA also recognises the progress in the transportation of removed soil and waste to the Interim Storage Facility.

Sea area monitoring results

Based on the information provided by Japan, no significant changes were observed in the monitoring results for seawater, sediment and marine biota during the period covered by this report. The levels measured by Japan in the marine environment are low and relatively stable. For the purpose of public reassurance, the IAEA encourages the continuation of sea area monitoring, particularly considering the ongoing authorized discharges of treated and monitored groundwater into the ocean.

Sea area monitoring data quality assurance

The IAEA continues to assist the Government of Japan in ensuring that the regularly updated Sea Area Monitoring programme is comprehensive, credible and transparent. To test the sampling and analytical performance of the Japanese laboratories for the analysis of radionuclides in seawater, sediment and fisheries samples, the IAEA organised proficiency tests annually and interlaboratory comparison exercises biannually for seawater and annually for sediment and fisheries samples for the period 2014-2016. Beginning with 2017 all exercises are organised once every year. The reporting on the seventh interlaboratory comparison exercise and the fourth proficiency test are currently ongoing. Seawater, marine sediment and fish samples from coastal waters in the Fukushima Prefecture, which were jointly collected by IAEA and Japanese experts in October 2017, were analysed as part of this seventh interlaboratory comparison exercise. The eighth interlaboratory comparison exercise will be organised in the second half of 2018.

The IAEA considers that the extensive data quality assurance programme helps to build confidence of the stakeholders in the accuracy and quality of the sea area monitoring data[1].

Food products

Based on the information provided by the authorities of Japan, the situation with regard to the safety of food, fishery and agricultural production continues to remain stable. No significant changes were observed since the previous report. Monitoring foods, appropriate regulatory action and public communication are helping to maintain confidence in the safety of the food supply. Food restrictions continue to be revised and updated as necessary in line with the food monitoring results. This indicates the continued vigilance of the authorities in Japan and their commitment to protecting consumers and trade.

Based on the information that has been made available, the Joint FAO/IAEA Division understands that measures to monitor and respond to issues regarding radionuclide contamination of food are appropriate, and that the food supply chain is controlled effectively by the relevant authorities.

__________

[1] A report on the on the first three years of the interlaboratory comparison exercise activities was published in July 2017.

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On 4 June 2018, Japan provided the IAEA with a copy of a report the discharge record and the seawater monitoring results at the Fukushima Daiichi Nuclear Power Station during May, which the Ministry of Foreign Affairs has sent to all international Missions in Japan.

The report contains information on discharges from the subdrain and groundwater drain systems, as well as on groundwater bypassing conducted during the month of May. In both cases, in advance of the action, TEPCO analyzes the quality of the groundwater to be discharged and announces the results. These results confirm that the radiation level of sampled water are substantially below the operational targets set by TEPCO.

On 4 June 2018, Japan provided the IAEA with a copy of a report the discharge record and the seawater monitoring results at the Fukushima Daiichi Nuclear Power Station during May, which the Ministry of Foreign Affairs has sent to all international Missions in Japan.

The report contains information on discharges from the subdrain and groundwater drain systems, as well as on groundwater bypassing conducted during the month of May. In both cases, in advance of the action, TEPCO analyzes the quality of the groundwater to be discharged and announces the results. These results confirm that the radiation level of sampled water are substantially below the operational targets set by TEPCO.

Close x Read Update →

On 1 May 2018, Japan provided the IAEA with a copy of a report on the discharge record and the seawater monitoring results at the Fukushima Daiichi Nuclear Power Station during April, which the Ministry of Foreign Affairs has sent to all international Missions in Japan.

The report contains information on discharges from the subdrain and groundwater drain systems, as well as on groundwater bypassing conducted during the month of April. In both cases, in advance of the action, TEPCO analyzes the quality of the groundwater to be discharged and announces the results. These results confirm that the radiation level of sampled water are substantially below the operational targets set by TEPCO.

 

On 1 May 2018, Japan provided the IAEA with a copy of a report on the discharge record and the seawater monitoring results at the Fukushima Daiichi Nuclear Power Station during April, which the Ministry of Foreign Affairs has sent to all international Missions in Japan.

The report contains information on discharges from the subdrain and groundwater drain systems, as well as on groundwater bypassing conducted during the month of April. In both cases, in advance of the action, TEPCO analyzes the quality of the groundwater to be discharged and announces the results. These results confirm that the radiation level of sampled water are substantially below the operational targets set by TEPCO.

 

Close x Read Update →

On 3 April 2018, Japan provided the IAEA with a copy of a report on the discharge record and the seawater monitoring results at the Fukushima Daiichi Nuclear Power Station during March, which the Ministry of Foreign Affairs has sent to all international Missions in Japan.

The report contains information on discharges from the subdrain and groundwater drain systems, as well as on groundwater bypassing conducted during the month of March. In both cases, in advance of the action, TEPCO analyzes the quality of the groundwater to be discharged and announces the results. These results confirm that the radiation level of sampled water are substantially below the operational targets set by TEPCO.

On 3 April 2018, Japan provided the IAEA with a copy of a report on the discharge record and the seawater monitoring results at the Fukushima Daiichi Nuclear Power Station during March, which the Ministry of Foreign Affairs has sent to all international Missions in Japan.

The report contains information on discharges from the subdrain and groundwater drain systems, as well as on groundwater bypassing conducted during the month of March. In both cases, in advance of the action, TEPCO analyzes the quality of the groundwater to be discharged and announces the results. These results confirm that the radiation level of sampled water are substantially below the operational targets set by TEPCO.

Close x Read Update →

On 8 March 2018, Japan provided the IAEA with a copy of a report on the discharge record and the seawater monitoring results at the Fukushima Daiichi Nuclear Power Station during February, which the Ministry of Foreign Affairs has sent to all international Missions in Japan.

The report contains information on discharges from the subdrain and groundwater drain systems, as well as on groundwater bypassing conducted during the month of February. In both cases, in advance of the action, TEPCO analyzes the quality of the groundwater to be discharged and announces the results. These results confirm that the radiation level of sampled water are substantially below the operational targets set by TEPCO.

On 8 March 2018, Japan provided the IAEA with a copy of a report on the discharge record and the seawater monitoring results at the Fukushima Daiichi Nuclear Power Station during February, which the Ministry of Foreign Affairs has sent to all international Missions in Japan.

The report contains information on discharges from the subdrain and groundwater drain systems, as well as on groundwater bypassing conducted during the month of February. In both cases, in advance of the action, TEPCO analyzes the quality of the groundwater to be discharged and announces the results. These results confirm that the radiation level of sampled water are substantially below the operational targets set by TEPCO.

Close x Read Update →

The Japanese Government has provided the IAEA with a report that summarizes the events and highlights the progress related to recovery operations at the Fukushima Daiichi Nuclear Power Station. The IAEA provided its assessments, which are contained in full at the end of the report.

Reduction of groundwater inflow into the buildings & pumped-up groundwater

The IAEA acknowledges the multiple initiatives taken by Japan have reduced the rate of groundwater inflow into the buildings and the pumped up groundwater. These measures include groundwater bypass, sub-drains, land-side impermeable walls using soil freezing and water proof pavement.

Investigations inside the Primary Containment Vessels (PCVs) in Units 2 and 3

The IAEA notes the ongoing progress in the investigation of damaged fuel and fuel debris inside the PCVs and that the information gained from the investigation will help with planning the removal of fuel and retrieval of fuel debris.

The IAEA also notes that spent fuel retrieval from Unit 3 is planned to start in the middle of 2018 fiscal year in Japan, as stated in the revised Mid- and-Long-Term Roadmap of September 2017.

Off-site decontamination

The IAEA acknowledges the efforts undertaken by the Government of Japan as well as the concerned prefectures and municipalities to implement off-site decontamination, including initiation of the operation of the Interim Storage Facility. The IAEA notes Japan’s plans to continue monitoring the air dose rate in the environment and to continue implementing remediation measures, as appropriate.

Sea area monitoring results

Based on the information provided by Japan, no significant changes were observed in the monitoring results for seawater, sediment and marine biota during the period covered by this report. The levels measured by Japan in the marine environment are low and relatively stable. For the purpose of public reassurance, the IAEA encourages the continuation of sea area monitoring, particularly considering the ongoing authorized discharges of treated and monitored groundwater into the ocean.

Sea area monitoring data quality assurance

The IAEA continues to assist the Government of Japan in ensuring that the regularly updated Sea Area Monitoring programme is comprehensive, credible and transparent. The seventh interlaboratory comparison exercise and the fourth proficiency test are currently underway. Seawater, marine sediment and fish samples from coastal waters in the Fukushima Prefecture, which were jointly collected by IAEA experts and Japanese scientists in October 2017, are currently being analysed as part of this seventh interlaboratory comparison exercise. The eighth interlaboratory comparison exercise will be carried out in 2018.

The IAEA considers that the extensive data quality assurance programme helps to build confidence of the stakeholders in the accuracy and quality of the sea area monitoring data.

Food products

Based on the information provided by the authorities of Japan, the situation with regard to the safety of food, fishery and agricultural production continues to remain stable. No significant changes were observed since the previous report. Monitoring foods, appropriate regulatory action and public communication are helping to maintain confidence in the safety of the food supply. Food restrictions continue to be revised and updated as necessary in line with the food monitoring results. This indicates the continued vigilance of the authorities in Japan and their commitment to protecting consumers and trade.

Based on the information that has been made available, the Joint FAO/IAEA Division understands that measures to monitor and respond to issues regarding radionuclide contamination of food are appropriate, and that the food supply chain is controlled effectively by the relevant authorities.

 

 

The Japanese Government has provided the IAEA with a report that summarizes the events and highlights the progress related to recovery operations at the Fukushima Daiichi Nuclear Power Station. The IAEA provided its assessments, which are contained in full at the end of the report.

Reduction of groundwater inflow into the buildings & pumped-up groundwater

The IAEA acknowledges the multiple initiatives taken by Japan have reduced the rate of groundwater inflow into the buildings and the pumped up groundwater. These measures include groundwater bypass, sub-drains, land-side impermeable walls using soil freezing and water proof pavement.

Investigations inside the Primary Containment Vessels (PCVs) in Units 2 and 3

The IAEA notes the ongoing progress in the investigation of damaged fuel and fuel debris inside the PCVs and that the information gained from the investigation will help with planning the removal of fuel and retrieval of fuel debris.

The IAEA also notes that spent fuel retrieval from Unit 3 is planned to start in the middle of 2018 fiscal year in Japan, as stated in the revised Mid- and-Long-Term Roadmap of September 2017.

Off-site decontamination

The IAEA acknowledges the efforts undertaken by the Government of Japan as well as the concerned prefectures and municipalities to implement off-site decontamination, including initiation of the operation of the Interim Storage Facility. The IAEA notes Japan’s plans to continue monitoring the air dose rate in the environment and to continue implementing remediation measures, as appropriate.

Sea area monitoring results

Based on the information provided by Japan, no significant changes were observed in the monitoring results for seawater, sediment and marine biota during the period covered by this report. The levels measured by Japan in the marine environment are low and relatively stable. For the purpose of public reassurance, the IAEA encourages the continuation of sea area monitoring, particularly considering the ongoing authorized discharges of treated and monitored groundwater into the ocean.

Sea area monitoring data quality assurance

The IAEA continues to assist the Government of Japan in ensuring that the regularly updated Sea Area Monitoring programme is comprehensive, credible and transparent. The seventh interlaboratory comparison exercise and the fourth proficiency test are currently underway. Seawater, marine sediment and fish samples from coastal waters in the Fukushima Prefecture, which were jointly collected by IAEA experts and Japanese scientists in October 2017, are currently being analysed as part of this seventh interlaboratory comparison exercise. The eighth interlaboratory comparison exercise will be carried out in 2018.

The IAEA considers that the extensive data quality assurance programme helps to build confidence of the stakeholders in the accuracy and quality of the sea area monitoring data.

Food products

Based on the information provided by the authorities of Japan, the situation with regard to the safety of food, fishery and agricultural production continues to remain stable. No significant changes were observed since the previous report. Monitoring foods, appropriate regulatory action and public communication are helping to maintain confidence in the safety of the food supply. Food restrictions continue to be revised and updated as necessary in line with the food monitoring results. This indicates the continued vigilance of the authorities in Japan and their commitment to protecting consumers and trade.

Based on the information that has been made available, the Joint FAO/IAEA Division understands that measures to monitor and respond to issues regarding radionuclide contamination of food are appropriate, and that the food supply chain is controlled effectively by the relevant authorities.

 

 

Close x Read Update →

On 2 February 2018, Japan provided the IAEA with a copy of a report on the discharge record and the seawater monitoring results at the Fukushima Daiichi Nuclear Power Station during January, which the Ministry of Foreign Affairs has sent to all international Missions in Japan.

The report contains information on discharges from the subdrain and groundwater drain systems, as well as on groundwater bypassing conducted during the month of January. In both cases, in advance of the action, TEPCO analyzes the quality of the groundwater to be discharged and announces the results. These results confirm that the radiation level of sampled water are substantially below the operational targets set by TEPCO.

On 2 February 2018, Japan provided the IAEA with a copy of a report on the discharge record and the seawater monitoring results at the Fukushima Daiichi Nuclear Power Station during January, which the Ministry of Foreign Affairs has sent to all international Missions in Japan.

The report contains information on discharges from the subdrain and groundwater drain systems, as well as on groundwater bypassing conducted during the month of January. In both cases, in advance of the action, TEPCO analyzes the quality of the groundwater to be discharged and announces the results. These results confirm that the radiation level of sampled water are substantially below the operational targets set by TEPCO.

Close x Read Update →

On 4 January 2018, Japan provided the IAEA with a copy of a report on the discharge record and the seawater monitoring results at the Fukushima Daiichi Nuclear Power Station during November, which the Ministry of Foreign Affairs has sent to all international Missions in Japan.

The report contains information on discharges from the subdrain and groundwater drain systems, as well as on groundwater bypassing conducted during the month of December. In both cases, in advance of the action, TEPCO analyzes the quality of the groundwater to be discharged and announces the results. These results confirm that the radiation level of sampled water are substantially below the operational targets set by TEPCO.

On 4 January 2018, Japan provided the IAEA with a copy of a report on the discharge record and the seawater monitoring results at the Fukushima Daiichi Nuclear Power Station during November, which the Ministry of Foreign Affairs has sent to all international Missions in Japan.

The report contains information on discharges from the subdrain and groundwater drain systems, as well as on groundwater bypassing conducted during the month of December. In both cases, in advance of the action, TEPCO analyzes the quality of the groundwater to be discharged and announces the results. These results confirm that the radiation level of sampled water are substantially below the operational targets set by TEPCO.

Close x Read Update →

On 1 December 2017, Japan provided the IAEA with a copy of a report on the discharge record and the seawater monitoring results at the Fukushima Daiichi Nuclear Power Station during November, which the Ministry of Foreign Affairs has sent to all international Missions in Japan.

The report contains information on discharges from the subdrain and groundwater drain systems, as well as on groundwater bypassing conducted during the month of November. In both cases, in advance of the action, TEPCO analyzes the quality of the groundwater to be discharged and announces the results. These results confirm that the radiation level of sampled water are substantially below the operational targets set by TEPCO.

On 1 December 2017, Japan provided the IAEA with a copy of a report on the discharge record and the seawater monitoring results at the Fukushima Daiichi Nuclear Power Station during November, which the Ministry of Foreign Affairs has sent to all international Missions in Japan.

The report contains information on discharges from the subdrain and groundwater drain systems, as well as on groundwater bypassing conducted during the month of November. In both cases, in advance of the action, TEPCO analyzes the quality of the groundwater to be discharged and announces the results. These results confirm that the radiation level of sampled water are substantially below the operational targets set by TEPCO.

Close x Read Update →

The Japanese Government has provided the IAEA with a report that summarizes the events and highlights the progress related to recovery operations at the Fukushima Daiichi Nuclear Power Station. The IAEA provided its assessments, which are contained in full at the end of the report.

Revision of the Mid-and-Long-Term Roadmap

Japan reported that it had revised the Mid- and-Long-Term Roadmap by incorporating the policy of fuel debris retrieval on 26 September 2017. This was the result of a suggestion by the Nuclear Damage Compensation and Decommissioning Facilitation Corporation (NDF) that the Japanese government should decide on a policy of fuel debris retrieval.

Reduction of groundwater inflow into the buildings and the release of pumped-up groundwater to the sea

The IAEA acknowledges the multiple initiatives taken by Japan, including groundwater bypass, sub-drains, land-side impermeable walls and water proof pavement which have contributed to the steady reduction in the volume of groundwater inflow into the buildings. The IAEA also notes that freezing of the remaining unclosed section of the land-side impermeable walls has begun.

Off-site decontamination

The IAEA acknowledges the efforts undertaken by the Government of Japan as well as the concerned prefectures and municipalities to implement off-site decontamination. The IAEA notes Japan’s plans to continue monitoring the air dose rate in the environment and to continue implementing remediation measures, as appropriate.

Sea area monitoring results

Based on the information provided by Japan, no significant changes were observed in the monitoring results for seawater, sediment and marine biota during the period covered by this report. The levels measured by Japan in the marine environment are low and relatively stable. For the purpose of public reassurance, the IAEA encourages the continuation of sea area monitoring, particularly considering the ongoing authorized discharges of treated and monitored groundwater into the ocean.

Sea area monitoring data quality assurance

The IAEA continues to assist the Government of Japan in ensuring that the regularly updated Sea Area Monitoring programme is comprehensive, credible and transparent. The organisation of IAEA proficiency tests and inter-laboratory comparison exercises, which have been organized biannually for seawater and annually for sediment and fisheries samples since 2014 to test the sampling and analytical performance of the Japanese laboratories for the analysis of radionuclides in seawater, sediment and fisheries samples, will continue. The seventh inter-laboratory comparison exercise and the fourth proficiency test are currently underway. Experts from the IAEA visited Japan from 16 to 26 October 2017 to collect seawater, marine sediment and fish samples from coastal waters in the Fukushima Prefecture, as part of this seventh inter-laboratory comparison exercise.

The IAEA considers that the extensive data quality assurance programme helps to build confidence of the stakeholders in the accuracy and quality of the sea area monitoring data.

Food products

Based on the information provided by the authorities of Japan, the situation with regard to the safety of food, fishery and agricultural production continues to remain stable. No significant changes were observed since the previous report. Monitoring foods, appropriate regulatory action and public communication are helping to maintain confidence in the safety of the food supply. Food restrictions continue to be revised and updated as necessary in line with the food monitoring results. This indicates the continued vigilance of the authorities in Japan and their commitment to protecting consumers and trade.

Based on the information that has been made available, the Joint FAO/IAEA Division understands that measures to monitor and respond to issues regarding radionuclide contamination of food are appropriate, and that the food supply chain is controlled effectively by the relevant authorities.

The Japanese Government has provided the IAEA with a report that summarizes the events and highlights the progress related to recovery operations at the Fukushima Daiichi Nuclear Power Station. The IAEA provided its assessments, which are contained in full at the end of the report.

Revision of the Mid-and-Long-Term Roadmap

Japan reported that it had revised the Mid- and-Long-Term Roadmap by incorporating the policy of fuel debris retrieval on 26 September 2017. This was the result of a suggestion by the Nuclear Damage Compensation and Decommissioning Facilitation Corporation (NDF) that the Japanese government should decide on a policy of fuel debris retrieval.

Reduction of groundwater inflow into the buildings and the release of pumped-up groundwater to the sea

The IAEA acknowledges the multiple initiatives taken by Japan, including groundwater bypass, sub-drains, land-side impermeable walls and water proof pavement which have contributed to the steady reduction in the volume of groundwater inflow into the buildings. The IAEA also notes that freezing of the remaining unclosed section of the land-side impermeable walls has begun.

Off-site decontamination

The IAEA acknowledges the efforts undertaken by the Government of Japan as well as the concerned prefectures and municipalities to implement off-site decontamination. The IAEA notes Japan’s plans to continue monitoring the air dose rate in the environment and to continue implementing remediation measures, as appropriate.

Sea area monitoring results

Based on the information provided by Japan, no significant changes were observed in the monitoring results for seawater, sediment and marine biota during the period covered by this report. The levels measured by Japan in the marine environment are low and relatively stable. For the purpose of public reassurance, the IAEA encourages the continuation of sea area monitoring, particularly considering the ongoing authorized discharges of treated and monitored groundwater into the ocean.

Sea area monitoring data quality assurance

The IAEA continues to assist the Government of Japan in ensuring that the regularly updated Sea Area Monitoring programme is comprehensive, credible and transparent. The organisation of IAEA proficiency tests and inter-laboratory comparison exercises, which have been organized biannually for seawater and annually for sediment and fisheries samples since 2014 to test the sampling and analytical performance of the Japanese laboratories for the analysis of radionuclides in seawater, sediment and fisheries samples, will continue. The seventh inter-laboratory comparison exercise and the fourth proficiency test are currently underway. Experts from the IAEA visited Japan from 16 to 26 October 2017 to collect seawater, marine sediment and fish samples from coastal waters in the Fukushima Prefecture, as part of this seventh inter-laboratory comparison exercise.

The IAEA considers that the extensive data quality assurance programme helps to build confidence of the stakeholders in the accuracy and quality of the sea area monitoring data.

Food products

Based on the information provided by the authorities of Japan, the situation with regard to the safety of food, fishery and agricultural production continues to remain stable. No significant changes were observed since the previous report. Monitoring foods, appropriate regulatory action and public communication are helping to maintain confidence in the safety of the food supply. Food restrictions continue to be revised and updated as necessary in line with the food monitoring results. This indicates the continued vigilance of the authorities in Japan and their commitment to protecting consumers and trade.

Based on the information that has been made available, the Joint FAO/IAEA Division understands that measures to monitor and respond to issues regarding radionuclide contamination of food are appropriate, and that the food supply chain is controlled effectively by the relevant authorities.

Close x Read Update →

On 2 October 2017, Japan provided the IAEA with a copy of a report on the discharge record and the seawater monitoring results at the Fukushima Daiichi Nuclear Power Station during September, which the Ministry of Foreign Affairs has sent to all international Missions in Japan.

The report contains information on discharges from the subdrain and groundwater drain systems, as well as on groundwater bypassing conducted during the month of September. In both cases, in advance of the action, TEPCO analyzes the quality of the groundwater to be discharged and announces the results. These results confirm that the radiation level of sampled water are substantially below the operational targets set by TEPCO.

On 2 October 2017, Japan provided the IAEA with a copy of a report on the discharge record and the seawater monitoring results at the Fukushima Daiichi Nuclear Power Station during September, which the Ministry of Foreign Affairs has sent to all international Missions in Japan.

The report contains information on discharges from the subdrain and groundwater drain systems, as well as on groundwater bypassing conducted during the month of September. In both cases, in advance of the action, TEPCO analyzes the quality of the groundwater to be discharged and announces the results. These results confirm that the radiation level of sampled water are substantially below the operational targets set by TEPCO.

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The Japanese Government has provided the IAEA with a report that summarizes the events and highlights the progress related to recovery operations at the Fukushima Daiichi Nuclear Power Station. The IAEA provided its assessments, which are contained in full at the end of the report.

Reduction of groundwater inflow into the buildings & release of pumped-up groundwater to the sea

The IAEA acknowledges the multiple initiatives to reduce the volume of groundwater inflow into the buildings and to maintain the same level of pumped water even when it rains.

The IAEA further notes that according to the information provided by Japan, the reported volume of water is being released to the sea in a controlled manner, without a noticeable impact on the radiation levels in seawater (please, also see the below section on “Sea area monitoring results”).

Investigations inside the Primary Containment Vessels (PCVs)

The IAEA notes the ongoing progress that has been made in the investigation of PCV internal structures. The information gained from the investigation will help to develop the future plan to remove fuel and fuel debris. The IAEA also notes that, during the investigation, there was no significant change in radiation levels at monitoring posts and dust-monitoring at the site boundaries of Fukushima Daiichi NPS.

Off-site decontamination

The IAEA acknowledges the efforts undertaken by the Government of Japan as well as the concerned prefectures and municipalities to implement off-site decontamination. The IAEA notes Japan’s plans to continue monitoring the air dose rate in the environment and to continue implementing remediation measures, as appropriate.

Sea area monitoring results

Based on the information provided by Japan, no significant changes were observed in the monitoring results for seawater, sediment and marine biota during the period covered by this report. The levels measured by Japan in the marine environment are low and relatively stable. For the purpose of public reassurance, the IAEA encourages continuation of sea area monitoring, particularly considering the ongoing authorized discharges of treated and monitored groundwater into the ocean.

Sea area monitoring data quality assurance

The IAEA considers that the extensive data quality assurance programme helps to build confidence of the stakeholders in the accuracy and quality of the sea area monitoring data. A report on the inter-laboratory comparison exercise activities in 2014-2016 was published in July 2017. The report concludes that the results obtained in the inter-laboratory comparison exercises demonstrate a high level of accuracy and competence on the part of the Japanese laboratories involved in the analyses of radionuclides in marine samples for the Sea Area Monitoring programme.

Food products

Based on the information provided by the authorities of Japan, the situation with regard to the safety of food, fishery and agricultural production continues to remain stable. No significant changes were observed since the previous report. Monitoring foods, appropriate regulatory action and public communication are helping to maintain confidence in the safety of the food supply. Food restrictions continue to be revised and updated as necessary in line with the food monitoring results. This indicates the continued vigilance of the authorities in Japan and their commitment to protecting consumers and trade.

Based on the information that has been made available, the Joint FAO/IAEA Division understands that measures to monitor and respond to issues regarding radionuclide contamination of food are appropriate, and that the food supply chain is controlled effectively by the relevant authorities.

 

The Japanese Government has provided the IAEA with a report that summarizes the events and highlights the progress related to recovery operations at the Fukushima Daiichi Nuclear Power Station. The IAEA provided its assessments, which are contained in full at the end of the report.

Reduction of groundwater inflow into the buildings & release of pumped-up groundwater to the sea

The IAEA acknowledges the multiple initiatives to reduce the volume of groundwater inflow into the buildings and to maintain the same level of pumped water even when it rains.

The IAEA further notes that according to the information provided by Japan, the reported volume of water is being released to the sea in a controlled manner, without a noticeable impact on the radiation levels in seawater (please, also see the below section on “Sea area monitoring results”).

Investigations inside the Primary Containment Vessels (PCVs)

The IAEA notes the ongoing progress that has been made in the investigation of PCV internal structures. The information gained from the investigation will help to develop the future plan to remove fuel and fuel debris. The IAEA also notes that, during the investigation, there was no significant change in radiation levels at monitoring posts and dust-monitoring at the site boundaries of Fukushima Daiichi NPS.

Off-site decontamination

The IAEA acknowledges the efforts undertaken by the Government of Japan as well as the concerned prefectures and municipalities to implement off-site decontamination. The IAEA notes Japan’s plans to continue monitoring the air dose rate in the environment and to continue implementing remediation measures, as appropriate.

Sea area monitoring results

Based on the information provided by Japan, no significant changes were observed in the monitoring results for seawater, sediment and marine biota during the period covered by this report. The levels measured by Japan in the marine environment are low and relatively stable. For the purpose of public reassurance, the IAEA encourages continuation of sea area monitoring, particularly considering the ongoing authorized discharges of treated and monitored groundwater into the ocean.

Sea area monitoring data quality assurance

The IAEA considers that the extensive data quality assurance programme helps to build confidence of the stakeholders in the accuracy and quality of the sea area monitoring data. A report on the inter-laboratory comparison exercise activities in 2014-2016 was published in July 2017. The report concludes that the results obtained in the inter-laboratory comparison exercises demonstrate a high level of accuracy and competence on the part of the Japanese laboratories involved in the analyses of radionuclides in marine samples for the Sea Area Monitoring programme.

Food products

Based on the information provided by the authorities of Japan, the situation with regard to the safety of food, fishery and agricultural production continues to remain stable. No significant changes were observed since the previous report. Monitoring foods, appropriate regulatory action and public communication are helping to maintain confidence in the safety of the food supply. Food restrictions continue to be revised and updated as necessary in line with the food monitoring results. This indicates the continued vigilance of the authorities in Japan and their commitment to protecting consumers and trade.

Based on the information that has been made available, the Joint FAO/IAEA Division understands that measures to monitor and respond to issues regarding radionuclide contamination of food are appropriate, and that the food supply chain is controlled effectively by the relevant authorities.

 

Close x Read Update →

On 1 September 2017, Japan provided the IAEA with a copy of a report on the discharge record and the seawater monitoring results at the Fukushima Daiichi Nuclear Power Station during August, which the Ministry of Foreign Affairs has sent to all international Missions in Japan.

The report contains information on discharges from the subdrain and groundwater drain systems, as well as on groundwater bypassing conducted during the month of August. In both cases, in advance of the action, TEPCO analyzes the quality of the groundwater to be discharged and announces the results. These results confirm that the radiation level of sampled water are substantially below the operational targets set by TEPCO.

On 1 September 2017, Japan provided the IAEA with a copy of a report on the discharge record and the seawater monitoring results at the Fukushima Daiichi Nuclear Power Station during August, which the Ministry of Foreign Affairs has sent to all international Missions in Japan.

The report contains information on discharges from the subdrain and groundwater drain systems, as well as on groundwater bypassing conducted during the month of August. In both cases, in advance of the action, TEPCO analyzes the quality of the groundwater to be discharged and announces the results. These results confirm that the radiation level of sampled water are substantially below the operational targets set by TEPCO.

Close x Read Update →

On 1 August 2017, Japan provided the IAEA with a copy of a report on the discharge record and the seawater monitoring results at the Fukushima Daiichi Nuclear Power Station during July, which the Ministry of Foreign Affairs has sent to all international Missions in Japan.

The report contains information on discharges from the subdrain and groundwater drain systems, as well as on groundwater bypassing conducted during the month of July. In both cases, in advance of the action, TEPCO analyzes the quality of the groundwater to be discharged and announces the results. These results confirm that the radiation level of sampled water are substantially below the operational targets set by TEPCO.

On 1 August 2017, Japan provided the IAEA with a copy of a report on the discharge record and the seawater monitoring results at the Fukushima Daiichi Nuclear Power Station during July, which the Ministry of Foreign Affairs has sent to all international Missions in Japan.

The report contains information on discharges from the subdrain and groundwater drain systems, as well as on groundwater bypassing conducted during the month of July. In both cases, in advance of the action, TEPCO analyzes the quality of the groundwater to be discharged and announces the results. These results confirm that the radiation level of sampled water are substantially below the operational targets set by TEPCO.

Close x Read Update →

On 3 July 2017, Japan provided the IAEA with a copy of a report on the discharge record and the seawater monitoring results at the Fukushima Daiichi Nuclear Power Station during June, which the Ministry of Foreign Affairs has sent to all international Missions in Japan.

The report contains information on discharges from the subdrain and groundwater drain systems, as well as on groundwater bypassing conducted during the month of June. In both cases, in advance of the action, TEPCO analyzes the quality of the groundwater to be discharged and announces the results. These results confirm that the radiation level of sampled water are substantially below the operational targets set by TEPCO.

On 3 July 2017, Japan provided the IAEA with a copy of a report on the discharge record and the seawater monitoring results at the Fukushima Daiichi Nuclear Power Station during June, which the Ministry of Foreign Affairs has sent to all international Missions in Japan.

The report contains information on discharges from the subdrain and groundwater drain systems, as well as on groundwater bypassing conducted during the month of June. In both cases, in advance of the action, TEPCO analyzes the quality of the groundwater to be discharged and announces the results. These results confirm that the radiation level of sampled water are substantially below the operational targets set by TEPCO.

Close x Read Update →

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