Yesterday Potrblog issued a maximum alert based on unusually high radiation readings:
Thursday, May 24, 2012 !MAXIMUM ALERT! Unusual Jet Stream Radioactivity Detectedhttp://pissinontheroses.blogspot.com/2012/05/maximum-alert-unusual-jet-steam.html#comment-form
Here is the link to the Radiation detection network references by Potrblog
Nuckelchen, an anonymous programmer, has used filters and acceleration to reveal a major nuclear event at Fukushima May 2
EPA's radnet for Denver does show spikes in May
Radnet for Yuma showing substantial gamma spikes over the last couple of weeks
Fresno data is "unavailable" for early May
I've been having major asthma problems throughout May. I've noticed before a correlation between my asthma and radnet levels.