Non-Hodgkin lymphoma is broadly divided into two major groups: B-cell lymphomas (which develop from abnormal B-lymphocytes, which is most common), and T-cell lymphomas (which develop from abnormal T-lymphocytes). Lymphocytes are a type of white blood cell that helps the body fight infections.
The atomic number of radon (Rn) is 86 and the atomic weight of Rn is 222 grams/mole.
Radium is a decay product of uranium which is naturally occurring in the soils and rocks of the earth's crust. Uranium is present at about 0.5 to 5 parts per million (ppm) in common rocks and soils. The concentration of radon gas in the soil will be related to the amount of uranium present. However, this is not a good indicator of the level of radon in an individual home. The radon concentration in a home is dependant on the type of soil the home is built on.