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Caesium-137 at CTBTO measurement stations in 2011

Caesium concentrations measured after the Fukushima reactor accident

Caesium-137 at CTBTO measurement stations in 2011Time series of the activity concentration of caesium-137 measured to date in the air at nine representative radioactivity measurement stations of the International Monitoring System to verify compliance with the Comprehensive Test Ban Treaty. The graph shows the time series during the first three months after the reactor accident.

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