Posts Tagged ‘asphalt’

Tepco to fill the most contaminated 4 borings with asphalt / “No more data on the east side of reactor2″

High level of radiation is detected from groundwater. On 7/22/2013, Tepco announced they are going to fill 4 borings by macadam and asphalt. The highest level of the radiation is detected in these borings. Now they are building the underground wall to stop contaminated groundwater from flowing to the sea. Tepco states they need to [...]

Citizens’ radiation monitoring station, “0.34Bq/Kg from lunch box dropped on asphalt”

According to the citizens’ radiation laboratory CRMS (Citizen’s Radioactivity Measuring Station), 0.34 Bq/Kg of Cs-134/137 was measured from the lunch box dropped on the asphalt of street in Fukushima city. They measured another lunch box to compare but the radiation level was lower than detectable amount. It can be concluded that the Cs-134/137 was attached [...]

467 Bq/Kg of Cs-134/137 from decontamination water in Kohriyama city Fukushima

Related to this article..18,756 Bq/kg of Cs-134/137 measured from the mud in street gutter in Setagaya Tokyo [URL] According to the citizens’ radiation laboratory CRMS (Citizen’s Radioactivity Measuring Station), high level of radiation was measured from the water used for decontamination. The water was used to decontaminate the surface of asphalt. The sampling location was [...]

Decontamination on asphalt can decrease the radiation level only by 20%

According to the decontamination assessment report by MOE, decontamination on asphalt can decrease the radiation level only by 20% at average. (Water pressure is about 5MPa) Even by high-pressure washing with brushing, radiation level decreases only by 28%. When they remove the surface of the asphalt, the average decreasing level is still only 31%. Additionally, [...]

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