The Chinese Consulate General in Niigata quoted the Fukushima Minpo newspaper as reporting on April 28 that three wild boars captured in Nihonmatsu City and Sukagawa City in Fukushima Prefecture were found to have excessive levels of radioactive cesium. It is understood thatThe radioactive cesium content in the three wild boars exceeded the Japanese food standard limit of 100Bq/kg, but the specific values were not disclosed..
On March 11, 2011, a serious nuclear leak occurred at the Fukushima Daiichi Nuclear Power Plant, releasing a large amount of radioactive materials (including cesium-137, cesium-134, etc.) into the atmosphere and water.
Radioactive cesium diffuses through atmospheric deposition and water flow, and remains in the soil of Fukushima Prefecture for a long time. The half-life of cesium-137 is about 30 years, which means that it takes hundreds of years to significantly decay.
The mushrooms, earthworms, underground tubers and other organisms that wild boars like to eat actively absorb and enrich cesium in the soil, accumulating radioactive substances through the food chain.
The wild boar's omnivorous habits and long lifespan (up to 10 years) make it an ideal "storage container" for radioactive cesium. The level of radioactivity in the body continues to increase and decreases slowly.
In addition to wild boars, wild animals such as bears, deer, and birds have also detected radioactive excess, forming a "radioactive biological chain." The pollution is distributed in patches, and soil radioactivity levels vary greatly in different areas, resulting in uneven levels of contamination in wild animals.
