Live Geiger Counter
Location: Meguro ku: about 10 mins walk from Ebisu station. Data is updated every minute so each time you visit this page you should see the graph update.
Equipment: American rm80 geiger counter with data logging.
Units are in uR/hr.
We have been logging atmospheric radiation daily since 2006, normal levels are 8-15 uR/hr.
(10 microRads/Hr equiv 0.10 microSv/Hr).
Fukushima Exposure March 15
Highest atmospheric levels detected March 15 was 36uR/hr about 3x normal background levels. This has been the max for Meguro area to date. graph here click . Highest levels at ground level on a street in Meguro was a reading of 82microRads/Hour (0.8microSieverts/Hour).
Please direct comments/observations to the forums section. here
Data on this graph and on any altTokyo page is just for informational purposes and is presented raw. Be sure to research other sources.