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Contaminated water crisis

[Major leakage] Tepco transferring contaminated water to new tank, “Not welded but safe”

On 5/3/2013, Fukushima Diary reported, “Tepco not to weld the new emergency tanks of 19,000m3 [URL]” About the major leakage of highly contaminated water, Tepco is transferring the water from

Sea contamination

Plutonium-239/240 detected from 2 discharge channels and 3km offshore of Fukushima nuclear plant

According to Tepco, Plutonium-239/240 were detected at 3 locations around Fukushima nuclear plant. The sampling dates are early April of 2013. 0.013 Bq/m3 from North of reactor5&6 discharge channel. 0.0014

Domestic and global Environment

Plutonium in Fukushima nuclear plant significantly increasing ,Max as 632% within 8 months of 2012

According to Tepco, Pu-238 and Pu-239/240 levels are significantly increasing in Fukushima nuclear plant area. Sample is dry soil. (Half-life, Pu-238 : 87.7 y, Pu-239 : 24,100 y, Pu-240 :

Contaminated water crisis

The leaking reservoirs may contain 1,300 Bq/m3 of Pu-238 and 110 Bq/m3 of Cm-244

By April. 2013, Tepco has admitted 3 of 7 reservoirs are leaking the highly contaminated water into the environment at least. From Tepco’s report of 4/26/2013, 1,300 Bq/m3 of Pu-238

Contaminated water crisis

Tepco did not conduct any endurance test of the contaminated water reservoirs in advance

According to the independent journalist Oshidori, Tepco did not conduct any endurance test of the contaminated water reservoirs in advance. It was stated in their press conference. Tepco has admitted

Contaminated water crisis

[Suspicion] Tepco stated they won’t analyze leaking water for α nuclide “by mistake”

About the major leakage of highly contaminated water, Fukushima Diary reported Tepco hasn’t decided when to announce Plutonium concentration in the leaking water. (cf, [Leakage] Plutonium concentration in the leaking

Domestic and global Environment Sea contamination

Tepco admitted Pu-238/239/240, Sr-90 in sea soil are from Fukushima accident

According to Tepco, significantly high level of radioactive material was measured from the sea soil. The sample is dry soil taken offshore reactor1 water intake canal (0~10cm depth). The sampling

Contaminated water crisis

[Leakage] Plutonium concentration in the leaking reservoirs not announced

In the press conference of 4/10/2013, Tepco stated it is not known when they announce α nuclide concentration in water of the crippled reservoirs. Tepco has admitted reservoir No.1, 2

Uncategorized

Radiation researcher “Pu-239/240 and U-238 measured from soil in Takahagi city Ibaraki

On 4/7/2013, the radiation researcher of a citizen reported he detected Pu-239/240 and U-238 from the soil. They analyzed the soil from the street gutter. Location is Takahagi city Ibaraki,

Domestic and global Environment Sea contamination

Am-241 and Pu-238/239/240 measured from offshore Fukushima, Miyagi, Ibaraki, MEXT “Within normal range”

According to MEXT (Ministry of Education, Culture, Sports, Science and Technology), 0.54 ~ 0.71 Bq/kg of Americium-241 and 0.011 ~ 0.021 Bq/Kg of Plutonium-238, 0.96 ~ 1.4 Bq/Kg of Plutonium-239/240