Impacts of Environmental Radioactivity and Advances in Radioecology (IERR)


December 1, 2020

Notice of Cancellation

International Conference: Ten Years after the Fukushima Daiichi Nuclear Accident
–Impacts of Environmental Radioactivity and Advances in Radioecology (IERR)

Dear participants and colleagues,

We would like to thank you and express for your support.

The novel coronavirus (COVID-19) have not subsided at all, and have been expanding in many countries. Anxiety is expanding in the world. The executive committee members of IERR 2021 (Fukushima University, QST, NIES, NARO, JAEA, and Fukushima Prefecture) have been considering about opening of the IERR2021 with great deliberation for a long time.

  • No improvement in the situation, no prospect of convergence, and no schedule
  • Currently, it is necessary to quarantine for a certain period after entering Japan, and it is not possible to expect participants from overseas.
  • If we will open web conferencing, it is difficult to hold it at the same time due to the time difference among countries.
  • In the case of web conferencing, it is difficult to display the content that requires novelty, and it is difficult to take measures such as illegal copying and diversion.
  • Benefits for participants will be limited
  • If the event cannot be held in Fukushima, donations from local governments and companies will disappear and budgetary provision will be difficult.
  • Difficult to arrange air tickets and hotels due to the hosting of the Olympic Games
  • When it comes to local events, it is difficult to keep social distances
  • The conference cannot be postponed until 2022 or later,
As mentioned above reasons, we are very sorry, but we have decided to cancel the IERR 2021 International Conference. We deeply appreciate we have been proceeding with the cooperation of all of you. Thank you for your understanding.

Hirofumi Tsukada
Representative of the IERR Executive Committee

Source: website of Nuclear Regulation Authority

Soon ─ in 2021 ─ it will be 10 years after the Fukushima Daiichi Nuclear accident of March 2011. Time is approaching to reflect on lessons learned and progress made. Immediately after the accident there was a period of tremendous community stress and confusion over changing radiation protection standards. Now, a revitalization period is in progress through extensive remediation and a gradual reopening of formerly restricted areas.

Since the accident, many scientific studies have been conducted in numerous research areas, especially on the topic of radiation in the environment. Thousands of scientific results have been disseminated internationally through a wide assortment of published manuscripts. In addition to scientific research, much effort has been made to restore communities and improve the quality of human life. Feedback from the science and community efforts is provided to residents to inform them about decreasing radiation levels and expected doses in the future.

The IERR conference will be held in June of 2021 to summarize knowledge obtained after the accident, and to recommend future directions for studies on environmental radioactivity. A published synopsis of the conference proceedings is planned.


February 25, 2020
IERR2021 official web site opens on-line.


Hirofumi TSUKADA Prof.

Institute of Environmental Radioactivity, Fukushima University

Conference Secretariat of IERR2021

c/o MONS Co., Ltd.

Rm203, 2-5-7-1, Higashi-Sapporo, Shiroishi-ku, Sapporo, 003-0002 JAPAN

Phone : +81-11-824-8805 Fax : +81-11-826-4556 E-mail :