Related to this article.. Tritium density reached the highest level at 3 bypass wells [URL]   On 2/22/2015, Tepco announced the radiation level suddenly jumped up in the plant area drain to let it flow to the sea. According to Tepco, 2 radiation monitors detected the rapid increase of all β nuclide density (to include Strontium-90) around 10:00AM. The indicated radiation level was 5,050,000 〜 5,630,000 Bq/m3. It made Tepco check the potential leakage of the contaminated water tanks upstream … Continue reading 7,230,000 Bq/m3 of all β nuclide leaked from drain to the sea / “Contamination level suddenly jumped up”