Radsafers, Does anyone know if the following metastable-state daughters ever result from these naturally radioactive decay schemes? Pb-210 (b-,g) Bi-210m Bi-212 (b-,g) Po-212m The databases I'm using illustrate that the ground state daughters exist, but the metastables are left out in both cases. Any insight will be appreciated, thanks! Greg Gibbons gibbgreg@isu.edu