This is an application to indicate the radiation amount in the air and radiation level of tap water (clean water and sewage) at the current location and all over the nation.
Air radiation Amount
Data from official data and contributed user data will be shown for the air radiation amount. People who have radioactive detector and/or dosimeter can contribute the measurements via this application.
The most updated data released in “National Radiation Monitoring Data” from Ministry of Education, Culture, Sports, Science and Technology will be shown.
Consist with contributed figure from people who has radioactive detector or dosimeters and official data.
Calculation method for user data
[offical data x 3 + total of user data figure ] / [3 + number of user data]
• Reliability and precision of data on the application will be subject to the source of the information.
We are making our best effort to reflect the most updated data. However, there may be an occasion to cause delay due to the situation of official data release and/or numbers of user contribution.
We would like to express our heartfelt sympathy for disaster victims of East Japan Great Earthquake.
Environmental Radioactive Standard for Tap Water
Radiation levels of national tap water are graphically illustrated based on the data released from Ministry of Education, Culture, Sports, Science and Technology.
Upon releasing the data, we will update the graph as needed.
Tentative index value for infant drinking water under Food Sanitation Act is 100 Bq/kg.
Unit: Radioactive Concentration (Bq/kg)