mSvJahr
mSvJahr, short for millisievert per Jahr (German for millisievert per year), is a unit used to express the annual effective dose of ionizing radiation received by a person or population. The sievert is the metric for radiation dose that reflects potential health risk, with 1 Sv = 1000 mSv. When the dose is given per year, it indicates the accumulated exposure over a 12-month period rather than a momentary dose rate.
In practice, mSvJahr combines all sources of exposure within a year, including natural background radiation, medical
Typical values vary by region and behavior. Natural background radiation commonly sums to about 2 to 3
Used as a communicative metric, mSvJahr emphasizes annual risk rather than instantaneous dose rate; it should