By Tomoko M. Nakanishi (auth.), Tomoko M. Nakanishi, Keitaro Tanoi (eds.)

Following the Fukushima nuclear coincidence, a wide quantity of tracking information has been accumulated concerning the soil, air, airborne dirt and dust, and seawater, in addition to info approximately a tremendous variety of meals provided to the industry. Little is understood, although, concerning the impact of radioactive fallout on agriculture, information regarding that is very important. even though greater than eighty% of the broken region is said to agriculture, in situ info in particular for agriculture is scarce. This ebook offers info in regards to the genuine circulate and accumulation of radioactivity within the ecological system—for instance, even if particles deposited on mountains could be a explanation for secondary illness, below what stipulations vegetation collect radioactive cesium of their fit to be eaten elements, and the way radioactivity is transferred from hay to take advantage of. simply because agriculture is so heavily concerning nature, many experts with various parts of workmanship has to be serious about answering those questions. in terms of rice, researchers in rice cultivation in addition to in soil, hydrology, and radioactivity size are operating jointly to bare the trails or accumulation of radioactivity within the box. For this goal, the Graduate university of Agricultural and lifestyles Sciences of The collage of Tokyo has assorted amenities to be had all through Japan, together with farmlands, forests, and meadowlands. Many educational employees individuals have shaped teams to behavior on-site learn, with greater than forty volunteers engaging. This publication provides the information gathered from the one undertaking being systematically conducted throughout Japan after the Fukushima accident.

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2 Comparison of performance of macro RRIS and IP in the analysis of 137Cs. (a) Images of a 137Cs standard solution spotted on paper at concentrations ranging from 1 Bq (top right, two spots) to 400 Bq (bottom left, two spots), which were analyzed using macro RRIS and IP. Effects of the Al plate covering the scintillator surface were also examined. The standard solution was 5 Time-Course Analysis of Radiocesium Uptake and Translocation in Rice… 41 soil medium, the rice plants absorbed only a little amount of 137Cs even after 20 h, which was slightly detectable by IP (Fig.

A large variation in Cs concentration has been reported among different plant species, including crops and vegetables. Rice is a low accumulator of Cs. 0002. This means that when rice is grown in soils of 5,000 Bq/kg it will accumulate 5–25 Bq/kg radiocesium in its polished grains, and I believe that this is below the provisional regulation level (500 Bq/kg) as well as the new standard (100 Bq/kg) for radiocesium contamination in food set by the Japanese government. To determine the degree of variation among rice cultivars, Ishikawa et al.

After the radioactive material was released into the atmosphere, it adhered to the surfaces of the aerial parts of plants where direct absorption occurred, which was the major source of contamination in plants immediately after the release of the radioactive material. The radioactive material then entered the environment and moved into the soil, where it was absorbed through the roots resulting in long-term contamination of crops. The level of root absorption is greatly affected by the behavior of the radioactive material in the soil and the soil-to-plant transfer factor depends on the specific soil type because radioactive materials such as cesium are strongly bound to the soil granules (Yamaguchi et al.

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