Review of Radon Studies: Health Perspectives

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Addis Ababa University


Since 2005 WHO played the initiative role to increase the interest of radon studies in many countries around the world. Specially, in the the 30 member countries of the Organization for Economic Co-operation and Development (OECD). The current radon studies around the world show that the interest of radon study also increased in other countries of the world including the countries of our continent Africa. In order to reduce the worldwide health impact of the radioactive radon gas, a new project the WHO International Radon Project (IRP) was formed in 2005. More than 100 scientists from 30 countries had participated in this project. In this project a new technologically improved and invented radon detecting and measuring devices were implemented. WHO now suggests that homeowners take action when radon levels exceed 2.7 pCi/l. This is a much more conservative gure than the Environmental Protection Agency (EPA's) action level of 4.0 pCi/l, which has been the U.S. standard for over 20-years. The United Nations also broke new ground in the international ght on radon-induced lung cancer earlier in 2009 when they released their acknowledgement of the radon problems throughout the world. Now, there is no doubt about the health hazards due to radon. That is why many countries around the world started to take measures



Review of Radon Studies