According to Tepco, 950,000,000,000 Bq/m3 of Cs-134/137 was detected from reactor2 seawater trench shaft. It’s located on the seaside of reactor2. The shaft is connected to the trench around 20m deep underground. They also measured 520,000,000,000 Bq/m3 of all β nuclides to include Strontium-90. The chloride concentration was 7,500 ppm. The contaminated water is mixed with seawater. The sample was collected at 13m depth under contaminated water on 7/31/2013. 350,000,000,000 Bq/m3 of Cs-134/137 was also measured at 7m depth under … Continue reading 950,000,000,000 Bq/m3 of Cs-134/137 from reactor2 seawater trench shaft