Radiansa: radiation measurement and shielding


Radon gas:
radioactive gas in buildings

Radiansa supplies monitors and detectors to quantify and analyze radon gas concentrations, and arquitectural radon membranes to impede the entrance of radon in buildings, to customers worldwide.


What is radon gas?

Radon is a naturally occurring radioactive gas arising from the decay of small amounts of uranium present in all rocks and soils, and is responsible for 50% of the radiation exposure to the general population (Europe) from natural sources causing many thousands of lung cancer deaths annually, many preventable.

All rocks contain small traces of uranium, although higher concentrations are found in certain rocks, granites for example,and so the level of radon accumulation in buildings can vary from place to place. Radon gas seeps into buildings through floors and basements and can accumulate, especially in enclosed and poorly ventilated areas like insulated buildings, underground car parks, cellars and basements.

The inhalation of particles (radioactive daughter products, principally polonium-214, polonium-218 and bismuth-214) produced by radon radioactive disintegration can then cause radiation exposure to the lungs. Significant health problems may be presented if exposures are maintained over a number of years; according to recent research 9% of lung cancers in Europe are attributable to radon gas, with the risk rising substantially for people who sloke as well as having high radon exposure.

If recommended limits in your building are exceeded, remedial action should be undertaken to reduce the levels of radon accumulation, such as installaing a radon barrier, increasing air exchange, or depressurizing the subsoil.


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