2015/03/06 at 1:09 am
22nd December 2014 – Radiological Dose Rates to Marine Fish from the Fukushima Daiichi Accident: The First Three Years Across the North Pacific
Our analysis of publicly available data indicates the dose rates to the most impacted fish species near the FDNPP (median 1.1 mGy d–1, 2012–2014 data) have remained above benchmark levels for potential dose effects at least three years longer than was indicated by previous, data-limited evaluations.
In addition to 134,137Cs, the radionuclide 90Sr was estimated to contribute up to approximately one-half of the total 2013 dose rate to fish near the FDNPP.
A hypothetical human consumer of 50 kg of fish, gathered 3 km from the FDNPP in 2013, would have received a total committed effective dose of approximately 0.95 mSv a–1 from combined FDNPP and ambient radionuclides, of which 0.13 mSv a–1 (14%) was solely from the FDNPP radionuclides and below the 1 mSv a–1 benchmark for public exposure.
In my opinion, the internal dose rate model is seriously flawed. There are so many independent studies that show it is flawed, and should not be use. It is used to play down the serious effects of internal ingestion of radioactive isotopes. A lot of radioactive isotopes are often not just radioactive, but also chemically toxic.
It does not take into account the serious biological toxicity multiplying effect of an organism ingesting multiple radioactive, and chemical toxins.
2015/02/21 at 8:46 pm
5th February 2015 – 30 Bq/Kg of Cs-134/137 detected from pig excrement in Iwaki city to prove internal exposure of domestic animals.
A Fukushima citizen measured a significant level of Cs-134/137 from pig excrement. This means the pork has serious amount of internal exposure.
The detected density was 29.44 Bq/Kg in total of Cesium-134/137 (Photo A). The citizen is living in Hamadori area of Fukushima prefecture.
The sample was compost of pig excrement produced in Tohno town, Iwaki city. Producing year was 2013.
Also, on 1/20/2015, this citizen measured 21.20 Bq/Kg from tangerine produced in Iwaki city (Photo B).
2015/02/06 at 3:07 am
26th January 2015 – Analysis of Japanese Radionuclide Monitoring Data of Food Before and After the Fukushima Nuclear Accident
Lessons Learned. An ample set of food monitoring data allows for the observation of general radioecological trends, such as the mobility and bioavailability of radionuclides. In this particular case, the long series of pre-Fukushima monitoring data teach us that the 90Sr/137Cs activity ratio is not constant in foodstuffs but constantly increases with time, thus causing an underestimation of the internal exposure as long as a constant (and low) ratio is assumed by the regulatory bodies.
A key finding of this study is that the correlation between 90Sr and 137Cs may soon no longer follow the assumption of a maximum 90Sr/137Cs activity ratio of 0.1 or even 0.003 in food. Background data from Japan suggested that after several years following the release into the environment, the 90Sr/137Cs activity ratio observed in food rises significantly (most of the samples showing a ratio > 2).
2015/01/28 at 4:52 pm
27th January 2015 – 31,000,000 Bq/m3 of Strontium-90 measured at the nearest boring well to Reactor 2
It was 31,000,000 Bq/m3. The sampling point was the boring well, which is the closest to Reactor 2.
This is the highest density measured from this boring well, which is 10% more than the previous highest record.
26th January 2015 – Over 2× as safety limit of Cs-134/137 detected from fish outside of Fukushima plant port
Cesium-134/137 density was 209 Bq/Kg. This is over double as the food safety limit in Japan.
21st January 2015 – 223,000 Bq/Kg of Cs-134/137 detected from Jacopever inner Fukushima plant port
Soon it’s going to be 4 years since 311 took place, however contamination level still remains high among marine creatures and also Tepco’s ill nature to try to downplay the actual contamination hasn’t been changed at all.