Radioactive Pollution Generated by the Electric Powers Using Coal as Combustible

A type of NORM (Normally Occurring Radioactive Materials) category is coal used as a fuel in power plants. The ash resulting from their burning is stored in the heaps near the thermal power stations and has a multiplication factor of the radionuclide concentration between 2 and 10, compared to the coal from which it originates. Even if in this case the radioactive pollution does not represent a significant danger for the population, this ash can be used in the construction of building materials, and thus through radon disintegration products emanating from these materials, can contribute to increasing the dose of ionizing radiation of the population, knowing that most of their lives and spend it inside buildings