Radioactive Iodine in Sewer Sludge in Oshu City, Iwate, EX-SKF, September 7, 2011:
Oshu City is located 187 kilometers north of Fukushima I Nuclear Power Plant.
The city announced the latest survey of radioactive materials in sewer sludge in a sewage treatment center in the city, and it shows iodine-131 being detected in the sludge cake since August 25. [...]
The city says it has stopped the shipment of sludge cakes from this plant because of the high radioactive iodine concentration detected from the August 25 sample [...]
Here is what nuclear engineer Arnie Gundersen said about the presence of iodine-131 back in April:
Iodine-131 can only come from nuclear fission, and because it has a short life, it disappears after about 80 days.
In other words, the presence of iodine-131 suggests that the [nuclear] fuel has started its own chain reaction without any human intervention.
Though not noted, the numbers in the chart above presumably refer to Becquerels per liter.
Published: September 7th, 2011 at 4:03 pm ET
- Gov’t: Clouds brought radioactive iodine southward after meltdowns, not only NW as was reported — Now trying to determine levels because of cancer risk (MAP & VIDEO) September 22, 2011
- Absorbed radiation dose of iodine-132 was 10 times higher than iodine-131 in Northern Japan after Fukushima meltdowns — Plus iodine-132 is 9 times more ‘effective’ at irradiating thyroid November 17, 2011
- Mag: “Large quantity” of Neptunium-239 flew at least 60km from Fukushima meltdowns — Decays into Plutonium-239 September 13, 2011
- Newly released data shows Iodine-131 found multiple times in Ibaraki — 320 Bq/kg in Hitachi sludge, previous test had none (CHARTS) September 30, 2011
- Recriticality? Iodine-131 detected in rice samples from late October October 30, 2011