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.
Radiation-induced bystander effects (RIBE) have been described in the literature as far back as 1954, when it was reported by Parsons that factors that cause damage to chromosomal structures â clastogenic factors â could be detected in the blood of irradiated patients (see Timeline).