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Tons of tree bark pose new radiation hazard via The Japan Times Online

SENDAI — At least 16,000 tons of radiation-contaminated tree bark and wood chips are piled up in unattended storage spots in lumber mills in Fukushima Prefecture, a local industry group said Wednesday.

Compared with limit of 400 becquerels per kilogram for leaf mold, the levels on bark and wood chips averaged 400 to 500 becquerels and even passed 1,000 becquerels in some areas, while no detectable radioactivity was measured on debarked timber, it said.

The association asked Tepco to burn the tainted debris at its coal-fired thermal power plants, but the utility has rejected that request on grounds that such a move could cause its facilities to malfunction, it said.

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