Yesterday I noticed that the Fukushima Daiichi common spent fuel pool building was looking very steamy and the "emissions" were yellow-tinged:
Today the emissions are invisible:
Not sure what is going on but Netc.com's animated radiation readings for Japan show elevated levels May 10, 2017.
Those levels could be from the fires though, rather than the plant:
Fire in Miyagi forces nearly 400 residents to evacuate. May 7, 2017. The Mainichi https://mainichi.jp/english/articles/20170508/p2g/00m/0dm/088000c