Fukushima Diary is reporting that Fukushima sewage plants detected high levels of Iodine--131, over 1,000 Bq/Kg, in dry sewage sludge in Fukushima Prefecture in July. Iodine-131 is a fission product with a roughly 8 day half-life. The reading could possibly have come from cancer patients' treatment but I don't thinks so based on my webcam observations from July.
Here is an excerpt from the the Fukushima Dairy post:
The highest I-131 density of this year detected in 2 Fukushima sewage plants http://fukushima-diary.com/2015/09/the-highest-i-131-density-of-this-year-detected-in-2-fukushima-sewage-plants/
According to Fukushima sewage public corporation, this July over 1,000 Bq/Kg of Iodine-131 was detected in dry sewage sludge. The sewage plant is located in Da-te District of Fukushima prefecture.
High level of I-131 was measured this May, however this reading of July is the highest density of this year. (cf, Significant level of I-131 detected from dry sludge of Fukushima sewage plant after rain in May [URL]) I-131 was detected from the samples collected from 7/9/2015 to 7/29/2015.I took a quick look at my webcam posts from July to see if I recorded any unusual events.
July 31 I documented the stained pink sky visible on the Futaba cam and the ship that looks like a pumpership in Fukushima Daiichi's harbor:
Even more interesting is my post from July 30 on "high strangeness on the TBS cam":
Here are screenshots from that event:
See also this post from July 21:
I find the link between the spiking Iodine-131 and July webcam observations troubling.
Together, they provide additional circumstantial evidence that the Daiichi melts are still smoldering.