より大きな地図で Dose rate contour map of the Fukushima accident を表示Contours for 8, 4, 2, 1, 0.5, 0.25, and 0.125 uSv/h based mainly on
a map compiled by @nnistar The N lobe was on 12 March 2011.
The NW-SW lobe, and a part of the S lobe, were on 15 March 2011.
The S lobe was mainly on 21-23 March 2011.

@nnistar's map on 18 June 2011

6 June 2011 version

18 June 2011 version

@nnistar's map on 28 June 2011

@nnistar's map on 28 June 2011, Tokyo Metropolitan area

@nnistar's map on 3 July 2011, color change.

23 July 2011 version

a part of the 11 September 2011 version

a part of the 27 November 2011 version


@nnistar's map on 27 November 2011

before and after 29 February 2012