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Natural radiation forms part of the radioactivity generated by the cosmos (cosmic radiation), by the solar system (solar radiation) and by the ground (telluric radiation). Radiation emitted from underground affects us both directly and indirectly. The direct action of radioactivity may occur in the form of a gas, such a

s Radon, or in the form of alpha, beta, or gamma radiation: this last, in particular, is the most important because it penetrates further into a person’s body (while alpha radiation can be effectively blocked by a sheet of paper, and beta radiation by a sheet of aluminium or a large piece of wood, blocking gamma rays requires several centimetres of lead or innovative radiological protection systems).

The indirect action of radiation is manifested in the construction industry through the use of certain building materials such as tufa stone, granite, concrete, etc. Being ionizing, natural radiation is without doubt carcinogenic and, in fact, even IARC (the International Cancer Research Agency) with headquarters in Lyon (France) classifies this type of radiation as Class I; that is, definitely carcinogenic (like petrol, asbestos, etc.). Obviously, the higher the dose of radioactivity a person is exposed to over time, the greater their risk of contracting pathologies comprising degenerative disorders, inclusive of cancer. Some forms of natural radiation are well known: everybody knows, for example, about UV rays emitted by the Sun (solar radiation), and many people are aware of telluric radiation such as radon gas. However, few people have heard of “muons”, gamma rays emitted by the Sun, and even fewer are familiar with telluric radiation such as Radium226 and Polonium210 (decay chains of Uranium and Thorium), Strontium87, Caesium133 and Potassium40 (which are generated directly by the terrain).

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Agenzia regionale protezione ambientale
Agenzia nazionale per le nuove tecnologie, l'energia e lo sviluppo economico sostenibile
International Atomic Energy Agency
Istituto nazionale per l'assicurazione contro gli infortuni sul lavoro
Istituto Superiore di Sanità
  JRC Ispra
Joint Research Centre
  Ministero dell'Ambiente
  Ministero della Salute
  AIRP- associazione
Associazione Italiana di Radioprotezione
  Cerotti Skudo® - azienda
Cerotti nanotecnologici di protezione
  Edita Natura Srl - azienda
Produzione e commercializzazione sistemi di protezione ambientale
  Unione Tutela Consumatori - associazione
  Riferimenti bibliografici  
Come difenderci dalle radiazioni - N. Limardo
edito da: Casa Energia, luglio 2009

Enhanced deposition of radon daughter nuclei in the vicinity of power frequency electromagnetic field - D.L. Henshaw et al
edito da: Int. J. Radiat Bio, 1996, <. 69: 25-38

Errori nella rilevazione e nella valutazione dei parametri posturo-stabilometrici di origine ambientale - A. Carducci
edito da: tesi di specializzazione per Tecnici di Posturometria, Univ. “Jean Monnet”, Brux

Healt effects of exposure to low levels of ionizing radiation - V. Beir
edito da: Washington, DC, National Research Council, 1990

La radioattivita naturale e i campi elettromagnetici artificiali: sistemi di protezione - E. Galli
edito da: tesi di laurea Facolta di Medicina e Chirurgia Universita di Siena, marzo 2009

Panico da Polonio210 - Commissione Europea Ist. Elementi transuranici
edito da: Newton, gennaio 2007

Radon and monocytic leukaemia in England - J.P. Eatough, J.P. Henshaw
edito da: Epidemiol Community Health, 1993

Radon exposure and leukaemia in childhood - J.F. Viel
edito da: Int J. Epidemiol, 1993

Radon: a causative factor in the induction of myeloid leukaemia and other cancers in adults and children? - J.P. Eatough, J.P. Henshaw, R.B. Richardsson
edito da: Lancet, 1990, 335:1008-1012

Salute dell’habitat - N. Limardo
edito da: Anima Edizioni, 2012, 3° ed

Tecnologia quantistica - N. Limardo
edito da: Anima edizioni 2014