250,000 µSv/year
	 Maximum permitted for staff working in emergency cases (new guideline) 

100,000 µSv/year
	 Maximum permitted for staff working in emergency cases 

50,000 µSv/year
	 Maximum permitted for Radiation workers and management workers (Policeman and Firemen)

10,000 µSv/year
	Guarapari Beach, Brazil

6,900 µSv/tomography
	Chest X-Ray computed tomography (ont time)

2,400 µSv/year
	Natural Radiation per person/year (World Average)
		Space  0.39
		Food 0.29
		Earth 0.48
		Radon (in air) 1.26

1,000 µSv/year
	Regular public space (except medical area)

600 µSv/radiograph
	Abdominal X-Ray for health checkup (one time)

400 µSv/year
	Domestic Natural Radiation variation (Gifu - Kanagawa)

200 µSv/roundtrip
	Tokyo - New York Flight (radiation varies depending on the flight attitude)

50 µSv/radiograph
	Chest X-Ray for health checkup (one time)

50 µSv/year
	Nuclear Power Plant area (Light Water Reactor) (estimated value)

22 µSv/year
	Evaluation of radioactive emission from nuclear reprocessing plant

10 µSv/year
	Clearance Level (estimated value)