DEVELOPMENT OF AN ACTIVE DEVICE FOR THE DETECTION OF 137 CS IN STEEL FACTORIES J.L. Gutierrez-Villanueva, I. Fuente, J.Quindos, C.Sainz, L.S.Quindos 6th.
Lesson 2 Why is radon a health problem?. Slide 2-1 Radon and lung cancer Radon is largest source of radiation exposure to general public Radon is leading.