![]() ![]() Using the estimated age of each animal, lifetime radiation doses ranged from <0.1 mGy to 700 mGy. ![]() Total dose rates to wild boar ranged from 0.02 to 36 μGy h −1, which was primarily attributed to external radiation exposure, and dose rates to the maximally exposed animals were above the generic no-effects benchmark of 10 μGy h −1. Internal Cs activity concentrations in boar remained high in areas near the power plant with the highest concentration of 54 kBq kg −1 measured in 2019. ![]() Here, radiation exposure was evaluated in 307 wild boar inhabiting radioactively contaminated areas (50–8000 kBq m −2) in Fukushima Prefecture from 2016 to 2019, and genetic markers were examined to assess possible germline mutations caused by chronic radiation exposures to several generations of wild boar. ![]() Estimating radiation exposure to wildlife is important to understand possible long-term impacts. Such studies have generally demonstrated a declining trend in measured radiocesium body burdens in wildlife. Genetic effects and radioactive contamination of large mammals, including wild boar ( Sus scrofa), have been studied in Japan because of dispersal of radionuclides from the Fukushima Dai-ichi Nuclear Power Plant in 2011. ![]()
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