5.8 trillion becquerels of strontium leaked from Fukushima over weekend
Tepco Press Release, Dec. 5: “At 11:33 am on December 4, workers found that there was puddle water inside the barrier around the evaporative condensation apparatus (estimated volume of water was approx. 45 m3 [1 cubic meter of water = 1 metric ton]).”
NHK: “The water is believed to have contained 130,000 becquerels per cubic centimeter of radioactive strontium.”
New York Times: “Tepco said a check on Saturday had found no sign of the leak, suggesting that it began Saturday night or early Sunday morning. The company said it was exploring ways to stop any more water from escaping.”
45 metric tons = 45,000 kg = 45,000,000 cubic centimeters * 130,000 becquerels per cubic centimeter of strontium = 5,850,000,000,000 Bq strontium
See also:
WSJ: New Leak Detected at Fukushima Plant -- Asahi: Strontium at 1,000,000 times gov't limit? Japan Times: Tepco's decontamination system doesn't remove strontium -- Media butchers details on latest Fukushima leak