This lab has all the equipment, knowhow, and offers radiological testing.
http://www.emsl.com/index.cfm?nav=Servi ... egoryID=11http://www.emsl.com/Index.cfm?nav=News& ... NewsID=619I haven't contacted this lab or know how much it cost, but it looks like a good resource for those interested in finding out what's in their food or air filters.