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A typical radon test kit Fluctuation of ambient air radon concentration over one week, measured in a laboratory. The first step in mitigation is testing. No level of radiation is considered completely safe, but as it cannot be eliminated, governments around the world have set various action levels to provide guidance on when radon concentrations should be reduced.
To achieve these aims, WHO has formed a network of key partner agencies from some 40 Member States. This network is the basis for the WHO International Radon Project which was launched in 2005. Working groups will collect and analyse information on radon risk, radon policies, radon mitigation and prevention as well as risk communication.
A list of certified mitigation service providers is available through state radon offices, which are listed on the EPA website. [ 115 ] [ 114 ] Indoor radon can be mitigated by sealing basement foundations, water drainage, or by sub-slab, or sub-membrane depressurization.
Pressure-retaining items can be registered with the National Board, requiring certain uniform quality standards be achieved certifying the manufacturing, testing, and inspection process. To obtain a certification the registered items have to be inspected by National Board-commissioned inspectors and built to required standards.
EWI, previously known as Edison Welding Institute, is a nonprofit engineering and technology organization dedicated to developing, testing, and implementing advanced manufacturing technologies for industry.
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Radon is measured in picocuries per liter of air (pCi/L) or becquerel per cubic meter (Bq m-3). Both are measurements of radioactivity. The World Health Organization (WHO) sets the ideal indoor radon levels at 100 Bq/m-3. [97] In the United States, it is recommend to fix homes with radon levels at or above 4 pCi/L.
Taipei 101 has achieved LEED Platinum certification three times, as of 2021. [1] Washington, D.C., is the first LEED Platinum city in the world. [2] Pictured is 1225 Connecticut Avenue, the first redeveloped office building on the U.S. East Coast to receive LEED Platinum status.
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