Silent Spring comes to Fukushima

Following up this article..32 swallows found dead at the water purification plant in Nagano

Japan Wild Bird Association tweeted like these below,

 

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visited Iidatemura Fukushima to research how radiation affect swallows. Atmospheric dose was 4~5μSv/h at average, the highest reading was 8μSv/h on the ground. Rice fields were abandoned, all the villagers evacuated, we found only a few swallows.

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silent spring

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It is not only swallow, we couldn’t find other summer birds such as Narcissus Flycatcher or  blue-and-white flycatcher either. It reminded me of “Silent Spring” by Rachel Louise Carson. Forest of no chirp.

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It’s not only swallow to be threatened by radiation. From the analysis of heron’s colony, 24,000 Bq/Kg of radionuclide (*probably cesium) was measured from the soil of the colony. The colony was in Fukushima, analysis was done in this January. Herons breed in the highly radioactive circumstance without knowing the risk, and

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Heron’s diet is freshwater fish. It’s becoming clear that radiation is accumulated in freshwater fish (cf. 18,700 Bq/Kg from fish in Iidate mura), radiation is also starting to be accumulated in herons. Giving contaminated fish to chicks, it’s accumulated in chicks as well.

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