The 289 area code was created as an area code overlay for the Mississauga (Streetsville) area. Unlike the previous solutions, this process did not require the place to be geographically separated by different area codes.
Ionizing radiation is a term used for radiation whose quanta have energy to directly or indirectly ionize (one or more electrons are released from the atom of the given substance) molecules or atoms while passing through matter, hence the name ionizing radiation.
Exposure to radiation may lead to different health effects. The type and probability of the effects produced generally depend on the radiation dose received. This could result in health problems for the exposed individuals or in genetic defects that may show up in their descendants.