Radiation Information

ページ番号1001416  更新日 2017年10月27日 印刷 

Measurement of radiation in the atmosphere and radioactivity in the seawater at Port of Nagoya

Responding to the "Guideline on Radiation Measurement in Ports" which was announced from Ministry of Land, Infrastructure, Transport and Tourism (MLIT) on April 22, 2011, the Port of Nagoya measured the radioactivity in the seawater and radiation level in the atmosphere as following.

Measurement results

Measurement results at the Port of Nagoya are as follows.

(Measurement results: Unit μSv/h)

Radiation level in the atmosphere

Date

Sampling Point
(1) Garden Pier

Sampling Point
(2) Kinjo Pier

Sampling Point
(3) Tobishima Pier

Sampling Point
(4) Nabeta Pier

May 19,2011

0.07

---

0.09

0.09

May 8,2012

0.06

---

0.07

0.07

June 14,2012

0.06

0.08

0.08

0.07

July 19,2012

0.05

0.07

0.08

0.07

August 22,2012

0.05

0.08

0.07

0.08

September 14,2012

0.06

0.08

0.08

0.09

October 15,2012

0.06

0.07

0.08

0.08

November 16,2012

0.06

0.07

0.08

0.07

December 14,2012

0.06

0.07

0.09

0.08

January 15,2013

0.06

0.07

0.08

0.08

February 14,2013

0.06

0.07

0.08

0.07

March 15,2013

0.06

0.07

0.09

0.07

April 15,2013

0.06

0.07

0.08

0.07

May 15,2013

0.05

0.07

0.06

0.07

June 13,2013

0.06

0.06

0.06

0.07

July 16,2013

0.06

0.06

0.07

0.07

August 15,2013

0.05

0.07

0.07

0.07

September 13,2013

0.06

0.06

0.06

0.07

October 15,2013

0.06

0.07

0.06

0.09

November 14,2013

0.06

0.06

0.07

0.07

December 16,2013

0.06

0.06

0.06

0.07

January 15,2014

0.06

0.06

0.07

0.07

February 13,2014

0.06

0.07

0.07

0.07

March 17,2014

0.06

0.06

0.06

0.07

April 15,2014

0.06

0.06

0.06

0.07

May 16,2014

0.05

0.06

0.06

0.07

June 16,2014

0.06

0.06

0.06

0.08

July 15,2014

0.05

0.06

0.06

0.07

August 13,2014

0.06

0.07

0.06

0.07

September 29,2014

0.06

0.06

0.06

0.07

November 13,2014

0.06

0.06

0.06

0.07

 February 16,2015

 0.06

0.07

0.07

0.07

 May 14,2015

 0.06

0.07

0.06

0.07

 August 18,2015

0.06

0.07

0.07

0.07

 November 16,2015

0.05

0.07

0.07

0.07

 February 15,2016

0.06

0.07

0.06

0.07

 May 16,2016

0.06

0.06

0.07

0.07

 August 16,2016

0.06

0.06

0.06

0.07

 November 15,2016

0.06

0.06

0.07

0.07

 February 13,2017

0.05

0.06

0.06

0.07

 May 22,2017

0.05

0.06

0.06

0.07

August 17,2017

0.06

0.06

0.07

0.07

In the measurement results, all radioactive materials was "Not detectable".

(Measurement results: Unit Bq/L)

Radioactivity in the seawater
Date Sampling Point Radioactivity(Ionie-131) Radioactivity(Cesium-134) Radioactivity(Cesium-137)
May 16
2011
(1) South side of Kinjo Pier Not Detectable Not Detectable Not Detectable
May 16
2011
(2) Outside of Hightide breakwater Not Detectable Not Detectable Not Detectable
May 7
2012
(1) South side of Kinjo Pier Not Detectable Not Detectable Not Detectable
May 7
2012
(2) Outside of Hightide breakwater Not Detectable Not Detectable Not Detectable
May 8
2013
(1) South side of Kinjo Pier Not Detectable Not Detectable Not Detectable
May 8
2013
(2) Outside of Hightide breakwater Not Detectable Not Detectable Not Detectable
May 7
2014
(1) South side of Kinjo Pier Not Detectable Not Detectable Not Detectable
May 7
2014
(2) Outside of Hightide breakwater Not Detectable Not Detectable Not Detectable
May 15
2015
(1) South side of Kinjo Pier Not Detectable Not Detectable Not Detectable
May 15
2015
(2) Outside of Hightide breakwater Not Detectable Not Detectable Not Detectable
May 18
2016
(1) South side of Kinjo Pier Not Detectable Not Detectable Not Detectable
May 18
2016
(2) Outside of Hightide breakwater Not Detectable Not Detectable Not Detectable

Sampling points

Map: Radiation level in the atmosphere is measured at Garden Pier, Kinjo Pier, Tobisima Pier and Nabeta Pier. Radioactivity in the seawater is measured at south side of Kinjo Pier and outside of Hightide breakwater.

 

  1. Radiation level in the atmosphere
    (1) Garden Pier
    (2) Kinjo Pier
    (3) Tobishima Pier
    (4) Nabeta Pier
  2. Radioactivity in the seawater
    (1) South side of Kinjo Pier
    (2) Outside of Hightide breakwater

Remarks about measurement result

The radiation dose is measured one meter above the ground surface in each point.
Measurement results may differ form the data measured by research institutes and others due to the effect of radiation from the ground surface or outer space.

Reference