Published: 19 April 2022. Monitoring of radioactive cesium in wild boars captured inside the difficult-to-return zone in Fukushima Prefecture over a 5-year period. Rie Saito, Reiko Kumada,...

Last updated on February 5, 2024. The most common radioactive form of cesium (chemical symbol Cs) is Cesium-137. Cesium-137 is produced by nuclear fission for use in medical devices and gauges and is one of the byproducts of nuclear fission in nuclear …

Chapter 7 Environmental Radiation Monitoring 7.6 Radiation Monitoring of Clean Water Control of Radioactive Cesium As of April 2011, radioactive cesium concentrations in raw water, water after sedimentation, biological activated carbon treated water, and rapid filtered water were measured at water purification plants in Fukushima …

monitoring surveys of game meat, such as meat from wild boars (Sus scrofa) and Asian black bears (Ursus thi- betanus ) 22 . e results have shown that radiocaesium contamination diers between these ...

2. Samples wherein radioactive cesium was detected all contained suspended solids. As a result of the second measurement of those samples after filtering, radioactive cesium was not detected in any of them. 3. Concentration of radioactive cesium is the total of Cs-134 and Cs-137 concentrations. 4. Monitoring points were as …

The above map shows estimated radioactive cesium concentrations in farmland soil based on the results of the measurement conducted at 329 locations in Fukushima Prefecture in FY2020 (values are converted into those as of October 29, 2020). In this farmland soil survey, soil to a depth of approx. 15 cm from the ground surface or a …

Following the Fukushima Daiichi Nuclear Power Plant accident in 2011, tissue samples from wild boar (Sus scrofa) outside the evacuation zone (difficult-to-return zone, DRZ) tended to show high activity concentrations of cesium-137 (137 Cs).Understanding the 137 Cs dynamics of wild boar populations inside the DRZ is …

In this work, based on the monitoring value of the air-dose rate and the radioactive cesium concentration in Tokyo City University Atomic Energy Research Laboratory, we focused on the temporal ...

Although roads and other infrastructure beyond the site had also been damaged, the Fukushima Prefecture began emergency radiation monitoring within a 10-km radius on March 12. From approximately 8–12 am on March 12, radioactive iodine and cesium were measured in airborne dust collected from the towns of Okuma and Namie, …

Monitoring of radioactive cesium in wild boars captured inside the difficult-to-return zone in Fukushima Prefecture over a 5-year period Sci Rep . 2022 Apr 19;12(1):5667. doi: 10.1038/s41598-022-08444-1.

We herein investigated bacterial communities in the radioactive cesium (Cs)-contaminated and non-contaminated soils by high-throughput sequencing. The uppermost and ectorhizosphere soil samples were collected from the base of mugwort grown in the same soil type with the same soil-use history in order to compare the …

Monitoring of radioactive cesium in wild boars captured inside the difficult-to-return zone in Fukushima Prefecture over a 5-year period Article Open access 19 April 2022 Rie Saito, Reiko Kumada, …

The above map shows radioactive material concentration distribution in farmland soil based on the results of the measurement conducted at 307 locations in Fukushima Prefecture in FY2019 (values are converted into those as of November 2, 2019). In this farmland soil survey, soil to a depth of approx. 15 cm from the ground surface or a depth …

Development of rapid monitoring for dissolved radioactive cesium with a cartridge type of Prussian blue-impregnated nonwoven fabric. T Yasutaka, H Tsuji, Y Kondo, Y Suzuki. Bunseki Kagaku (Japan Analyst) 62 (6), 499-506, 2013. 11: 2013: Radiocesium balance and its behavior in dam on Uda river and Ota river in Fukushima Prefecture.

Radioactive cesium concentrations in river sediments were measured in FY2020 as in the previous year. A total of 1,464 samples, including 572 samples collected in Fukushima Prefecture and others collected in Iwate, Miyagi, Ibaraki, Tochigi, Gunma, Chiba and Saitama Prefectures and the Tokyo Metropolis, were surveyed. The survey results …

Currently there is no major concern about radioactive cesium concentrations in retail foodstuffs in Japan, and very low levels of contamination at the production and wholesale stage. However, because the residue limits and food safety policies were revised on an ad hoc, emergency basis after the nuclear accident, the …

Cesium (Cs) removal from nuclear liquid wastewater has become an emerging issue for safeguarding public health after the accident at the Fukushima Daiichi Nuclear Power Plant. A novel macrocyclic ...

A typical seawater sample will contain just a few Bq/m 3 of the cesium isotopes and much higher levels of naturally occurring radionuclides. By comparison, the limit for cesium in drinking water in the U.S. is 7,400 Bq/m 3. Latest cesium levels will be updated and reported on the website beginning January 14, 2014.

The radioactive cesium movement related to mode water is important in terms of the circulation of cesium into the ocean interior. Some new technologies and techniques concerning emergency monitoring of radioactivity in the ocean …

A custom radiation monitoring system was developed by Oregon State University at the request of the Woods Hole Oceanographic Institute to measure radioactive cesium contaminants in the ocean waters near Fukushima Dai-ichi Nuclear Power Plant. The system was to be used on board the R/V Ka'imikai-O-Ka …

By monitoring the river waters since September 2012, it was estimated that the levels of dissolved radioactive Cs were less than 0.128 Bq/L and those of total radioactive Cs were less than 0.274 Bq/L in the main stream and branches of Abukuma River in the low suspended solid condition.

The Fukushima nuclear accident led to high atmospheric releases and deposition of volatile fission products in northeastern Japan. The main gamma emitters that were deposited onto the ground surfaces…. Expand. 2. PDF. Semantic Scholar extracted view of "Distribution of radioactive cesium measured by aerial radiation monitoring" …

October 2, 2017 at 3:30 pm. Six years after the Fukushima nuclear reactor disaster in Japan, radioactive material is leaching into the Pacific Ocean from an unexpected place. Some of the highest ...

Radioactive cesium concentration in the fish samples were determined using either a gamma ray spectrometry radionuclide assay method that utilises a germanium semiconductor detector ... continuous …

An unmanned helicopter monitoring system (UHMS) was developed to survey the environmental effect of radioactive cesium scattered as a result of the FDNPS accident. The UHMS was used to monitor the area surrounding …

Since the production and use of cesium compounds are limited, and since the natural concentration of cesium in the earth's crust is low, stable 133 Cs is not often monitored or detected in the environment. Of much greater …

Following the Fukushima Daiichi Nuclear Power Plant accident in 2011, tissue samples from wild boar (Sus scrofa) outside the evacuation zone (difficult-to-return zone, DRZ) tended to show high activity concentrations of cesium-137 (137Cs). Understanding the 137Cs dynamics of wild boar populations inside the DRZ is necessary …

With a chemical similarity to K +, extensive investigations revealed that cesium is prone to be transferred into the human body via the food chain and substitute for potassium during transport in the cell membrane []. 137 Cs has serious damaging effects on the human body due to the gamma radiation from its daughter 137m Ba. 137 Cs is …

The radioactive cesium movement related to mode water is important in terms of the circulation of cesium into the ocean interior. Some new technologies and techniques concerning emergency monitoring of radioactivity in the ocean environment are also reported, the effectiveness of which has been demonstrated by use in relation to the …

This review describes cesium radioactivity in marine and freshwater products after the Fukushima Dai-ichi Nuclear Power Plant (FDNPP) accident and explains the relation of that radioactivity to the restoration of marine and freshwater fisheries in …

A 1999 study found that seals and porpoises in the Irish Sea concentrated radioactive cesium by a factor of 300 relative to its concentration in seawater, and a factor of 3 to 4 compared to the fish …

Radioactive Material Monitoring in the Water Environment(Lake and Reservoir Sediments) Radioactive cesium concentrations in lake and reservoir sediments were measured in FY2020 as in the previous year. A total of 598 samples, including 369 samples collected in Fukushima Prefecture and others collected in Miyagi, Ibaraki, …

Background radiation is around us all the time, mostly from natural sources, like naturally occurring radon and uranium. For more information about the history of RadNet, please visit the Learn About RadNet webpage. Some of the fallout radionuclides the EPA's monitoring systems may detect include: Americium-241; Cesium-137; Iodine …