I don't have the Numeria book yet, but I was considering getting it. I heard there is an alchemist's discovery for radiation. PFSRD had some information on it, but it seemed incomplete - if it really is an alchemy discovery.
I was hoping someone who has the book could look at what's online and tell me if (as I suspect) its an environment hazard entry mislinked as an alchemist discovery? Or if there is info in the book about how an alchemist would use radiation - as that is what's missing if its a discovery.
http://www.d20pfsrd.com/classes/base-classes/alchemist/discoveries/paizo--- alchemist-discoveries/radiation
Yes, it's an environmental hazard.
Ah well, that's a pity. I could totally play a cracked, sinister tiefling alchemist dotting the lands with new fields of taint from his mad radiation-infused bombs...
We'll have to see what they give us in the Technology Guide.