- This data was created based on the results of air dose rates from "The Measurement Results of Air Dose Rates at Tsukuba Center" that was released to the public in the website of the National Institute of Advanced Industrial Science and Technology.
- In this survey, the air dose rates were obtained at Tsukuba Center from March 15, 2011 to March 15, 2013 by subtracting 0.06 (µSv/h) as background.