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.
Biological Effects of Radiation. Nuclear radiation is the most-studied environmental hazard in the world. The effects on people from exposure to very large amounts of radiation is well known. In this section, you will learn about the biological effects of very large radiation doses received in a relatively short period of time (acute exposure) and repeatedly over a long period of time (chronic exposure).