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.
Depending on exactly where you receive radiation, a number of side effects can occur either on a temporary, long-term, or delayed basis. They include changes in sensation (the ability to feel), secretions (dry mouth), taste, and range of motion (when tissue hardening restricts movement and posture). These side effects can then affect key physical functions associated with the mouth and throat, such as speech and, especially after radiation, swallowing.