Background Radiation

Radioactive materials occur naturally and, as a result, everyone is exposed to a low-level of radiation every day. This exposure comes from a mixture of natural and man-made sources - Amount of radiation your exposed to depends on where you live, your job... - Scientist must consider amount of BGR when working/experimenting with radioactive sources - BGR mainly effects people by irradiation, but small amount is from contamination by radioisotopes in food/drink consumed