Fukushima Prefecture Environmental Radiation Monitoring-Mesh Investigation
FY 2011 - FY 2017   The Secretariat of the Nuclear Regulation Authority, and Fukushima Prefecture

This series of data was created based on results of Fukushima Prefecture Environmental Radiation Monitoring-Mesh Investigation (FY 2011 to FY 2017).
This series of data was created based on results of Fukushima Prefecture Environmental Radiation Monitoring-Mesh Investigation (FY 2011 to FY 2017).

Readings of the First to Tenth Fukushima Prefecture Environmental Radiation Monitoring in Mesh Surveys ( From April 2011 to July 2017 )
  1. This data was created based on the results of Fukushima Prefecture environmental radiation monitoring in mesh survey (1st to 10th surveys) released to the public in the Fukushima Prefecture Government website.
  2. In these surveys, whole Fukushima Prefecture was divided into 4 km x 4 km grids and 1 to 6 measurement points were selected in each grid that includes urban area and residential area. The air dose rates at the height of 1 m and 1 cm were measured.
  3. Measurement periods of the surveys is as follows.
    Survey times
    Measurement periods
    10th From April 20, 2017 to July 5, 2017
    9th From May 12, 2016 to July 22, 2016
    8th From May 13, 2015 to June 10, 2015
    7th From May 12, 2014 to June 4, 2014
    6th From May 13, 2013 to June 5, 2013
    5th From October 3, 2012 to October 26, 2012
    4th From May 23, 2012 to June 13, 2012
    3rd From February 21, 2012 to March 9, 2012
    2nd From August 17, 2011 to September 7, 2011
    1st From April 12, 2011 to April 16, 2011
Readings of the Tenth Fukushima Prefecture Environmental Radiation Monitoring in Mesh Survey ( From April 2017 to July 2017 )
  1. This data was created based on the results of Fukushima Prefecture environmental radiation monitoring in mesh survey released to the public in the Fukushima Prefecture Government website.
  2. In this survey, whole Fukushima Prefecture was divided into 4 km x 4 km grids and 1 to 6 measurement points were selected in each grid that includes urban area and residential area. The air dose rates at the height of 1 m were measured from April 20, 2017 to July 5, 2017.
Readings of the Ninth Fukushima Prefecture Environmental Radiation Monitoring in Mesh Survey ( From May 2016 to July 2016 )
  1. This data was created based on the results of Fukushima Prefecture environmental radiation monitoring in mesh survey released to the public in the Fukushima Prefecture Government website.
  2. In this survey, whole Fukushima Prefecture was divided into 4 km x 4 km grids and 1 to 6 measurement points were selected in each grid that includes urban area and residential area. The air dose rates at the height of 1 m were measured from May 12, 2016 to July 22, 2016.
Readings of the Eighth Fukushima Prefecture Environmental Radiation Monitoring in Mesh Survey ( From May 2015 to June 2015 )
  1. This data was created based on the results of Fukushima Prefecture environmental radiation monitoring in mesh survey released to the public in the Fukushima Prefecture Government website.
  2. In this survey, whole Fukushima Prefecture was divided into 4 km x 4 km grids and 1 to 6 measurement points were selected in each grid that includes urban area and residential area. The air dose rates at the height of 1 m were measured from May 13, 2015 to June 10, 2015.
Readings of the Seventh Fukushima Prefecture Environmental Radiation Monitoring in Mesh Survey ( From May 2014 to June 2014 )
  1. This data was created based on the results of Fukushima Prefecture environmental radiation monitoring in mesh survey released to the public in the Fukushima Prefecture Government website.
  2. In this survey, whole Fukushima Prefecture was divided into 4 km x 4 km grids and 1 to 6 measurement points were selected in each grid that includes urban area and residential area. The air dose rates at the height of 1 m were measured from May 12, 2014 to June 4, 2014.
Readings of the Sixth Fukushima Prefecture Environmental Radiation Monitoring in Mesh Survey ( From May 2013 to June 2013 )
  1. This data was created based on the results of Fukushima Prefecture environmental radiation monitoring in mesh survey released to the public in the Monitoring Information of Environmental Radioactivity Level portal site by the Secretariat of the Nuclear Regulation Authority.
  2. In this survey, whole Fukushima Prefecture was divided into 4 km x 4 km grids and 1 to 6 measurement points were selected in each grid that includes urban area and residential area. The air dose rates at the height of 1 m were measured from May 13, 2013 to June 5, 2013.
Readings of the Fifth Fukushima Prefecture Environmental Radiation Monitoring in Mesh Survey ( October 2012 )
  1. This data was created based on the results of Fukushima Prefecture environmental radiation monitoring in mesh survey released to the public in the Monitoring Information of Environmental Radioactivity Level portal site by the Secretariat of the Nuclear Regulation Authority.
  2. In this survey, whole Fukushima Prefecture was divided into 4 km x 4 km grids and 1 to 6 measurement points were selected in each grid that includes urban area and residential area. The air dose rates at the height of 1 m were measured from October 3, 2012 to October 26, 2012.
Readings of the Fourth Fukushima Prefecture Environmental Radiation Monitoring in Mesh Survey ( From Mary 2012 to June 2012 )
  1. This data was created based on the results of Fukushima Prefecture environmental radiation monitoring in mesh survey released to the public in the Monitoring Information of Environmental Radioactivity Level portal site by the Secretariat of the Nuclear Regulation Authority.
  2. In this survey, whole Fukushima Prefecture was divided into 4 km x 4 km grids and 1 to 6 measurement points were selected in each grid that includes urban area and residential area. The air dose rates at the height of 1 m were measured from May 23, 2012 to June 13, 2012.
Readings of the Third Fukushima Prefecture Environmental Radiation Monitoring in Mesh Survey ( From February 2012 to March 2012 )
  1. This data was created based on the results of Fukushima Prefecture environmental radiation monitoring in mesh survey released to the public in the Monitoring Information of Environmental Radioactivity Level portal site by the Secretariat of the Nuclear Regulation Authority.
  2. In this survey, whole Fukushima Prefecture was divided into 4 km x 4 km grids and 1 to 6 measurement points were selected in each grid that includes urban area and residential area. The air dose rates at the height of 1 m were measured from February 21, 2012 to March 9, 2012.
Readings of the Second Fukushima Prefecture Environmental Radiation Monitoring in Mesh Survey ( From August 2011 to September 2011 )
  1. This data was created based on the results of Fukushima Prefecture environmental radiation monitoring in mesh survey released to the public in the Monitoring Information of Environmental Radioactivity Level portal site by the Secretariat of the Nuclear Regulation Authority.
  2. In this survey, whole Fukushima Prefecture was divided into 4 km x 4 km grids and 1 to 6 measurement points were selected in each grid that includes urban area and residential area. The air dose rates at the height of 1 m were measured from August 17, 2011 to September 7, 2011.
Readings of the First Fukushima Prefecture Environmental Radiation Monitoring in Mesh Survey ( April 2011 )
  1. This data was created based on the results of Fukushima Prefecture environmental radiation monitoring in mesh survey released to the public in the Monitoring Information of Environmental Radioactivity Level portal site by the Secretariat of the Nuclear Regulation Authority.
  2. In this survey, whole Fukushima Prefecture was divided into 4 km x 4 km grids and 1 to 6 measurement points were selected in each grid that includes urban area and residential area. The air dose rates at the height of 1 m and 1 cm were measured from April 12, 2011 to April 15, 2011.
Time Series Analysis ( From 2011 to 2017 )
  1. This data was created based on the results of Fukushima Prefecture environmental radiation monitoring in mesh survey conducted from 2011 to 2017 (10 times).
  2. Time series data were created based on the third area partitions (100 m x 100 m grid). For the grids that had five or more data points, regression models were estimated using the least-squares method and attenuation rates were derived.
Publicly available data collected from the website of the relevant organizations and converted into CSV, XML, and KML formats that were easy to use.

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CSV files that have common item names over different survey projects for comparison analyses.

Readings of the First to Tenth Fukushima Prefecture Environmental Radiation Monitoring in Mesh Surveys ( From April 2011 to July 2017 )
Readings of the Tenth Fukushima Prefecture Environmental Radiation Monitoring in Mesh Survey ( From April 2017 to July 2017 )
Readings of the Ninth Fukushima Prefecture Environmental Radiation Monitoring in Mesh Survey ( From May 2016 to July 2016 )
Readings of the Eighth Fukushima Prefecture Environmental Radiation Monitoring in Mesh Survey ( From May 2015 to June 2015 )
Readings of the Seventh Fukushima Prefecture Environmental Radiation Monitoring in Mesh Survey ( From May 2014 to June 2014 )
Readings of the Sixth Fukushima Prefecture Environmental Radiation Monitoring in Mesh Survey ( From May 2013 to June 2013 )
Readings of the Fifth Fukushima Prefecture Environmental Radiation Monitoring in Mesh Survey ( October 2012 )
Readings of the Fourth Fukushima Prefecture Environmental Radiation Monitoring in Mesh Survey ( From Mary 2012 to June 2012 )
Readings of the Third Fukushima Prefecture Environmental Radiation Monitoring in Mesh Survey ( From February 2012 to March 2012 )
Readings of the Second Fukushima Prefecture Environmental Radiation Monitoring in Mesh Survey ( From August 2011 to September 2011 )
Readings of the First Fukushima Prefecture Environmental Radiation Monitoring in Mesh Survey ( April 2011 )