Cadmium leaching from thermal treated and gamma irradiated Mexican aluminosilicates

50 kGy of gamma irradiation does not affect the leachability of mineral soils and sediments

“…If this is the case, then gamma-irradiation-induced change might enhance leachability of elements in environmental tests, potentially leading to inaccurate, and erroneous data. Gamma irradiation at 7670 kGy increases the leachability of Co (Dávila-Rangel et al , 2007), Cd (Dávila-Rangel and Solache-Ríos, 2008), and presumably other metal ions in aluminosilicates, although the effects of sample heating on mineralogy are greater than irradiation, even at the relatively large irradiation doses received in these studies. Similarly, gamma irradiation of Cu metal created radiation-enhanced corrosion at doses of 20 kGy and greater, probably because of enhanced galvanic action between the surface copper oxide layer and the zero-valent metal beneath (Björkbacka et al , 2013).…”