Search results
Results from the WOW.Com Content Network
The public needs to be aware of radon risks and the means to reduce and prevent these." [ 2 ] In 1996 [ citation needed ] , WHO published a report containing several conclusions and recommendations covering the scientific understanding of radon risk and the need for countries to take action in the areas of risk management and risk communication .
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.
Radon is a major cause of cancer; it is estimated to contribute to ~2% of all cancer related deaths in Europe. [1] Radium, like radon, is radioactive and is found in small quantities in nature and is hazardous to life if radiation exceeds 20-50 mSv/year. Radium is a decay product of uranium and thorium. [2]
Radon concentration at the shores of large oceans is typically 1 Bq/m 3. Radon trace concentration above oceans or in Antarctica can be lower than 0.1 Bq/m 3, [101] with changes in radon levels being used to track foreign pollutants. [102] 10: 0.27 Mean continental concentration in the open air: 10 to 30 Bq/m 3.
Radon is responsible for the majority of public exposure to ionizing radiation. It is often the single largest contributor to an individual's background radiation dose, and is the most variable from location to location. Radon gas from natural sources can accumulate in buildings, especially in confined areas such as attics and basements.
Digital Public Library of America. Miscellaneous items related to Spanish-language newspapers "Spanish". Chicago Foreign Language Press Survey. Chicago Public Library Omnibus Project of the Works Progress Administration of Illinois. 1942 – via Newberry Library. (English translations of selected Spanish-language newspaper articles, 1855–1938).
Once you’re approved, one Illinois Link Card will be issued per account. The Illinois Link Card looks and works like a credit or debit card. This card can be used to purchase eligible food items ...
Working level (WL) is a historical unit of concentration of radioactive decay products of radon, applied to uranium mining environment. [1] One working level refers to the concentration of short-lived decay products of radon in equilibrium with 3,700 Bq/m 3 (100 pCi/L) in air. These decay products would emit 1.3 × 10 5 MeV in complete decay. [2]