, Volume 722, Issue 1, pp 19–30 | Cite as

Radioactive contamination of aquatic insects in a stream impacted by the Fukushima nuclear power plant accident

Primary Research Paper


The Fukushima Daiichi Nuclear Power Plant accident emitted radioactive substances into the environment, contaminating a diverse range of organisms. Stream algae, litter, sand substrate, aquatic insects and fishes are among the organisms that have been impacted. Radioactive Cs contaminations in the litter and sand substrate were elevated where the atmospheric dose rate in the air was high. Radioactive Cs contaminations in algae and aquatic insects varied irregularly; nevertheless, radioactive Cs contaminations in aquatic insects in pools were consistently higher than those in stream riffles. Contamination by the radioactive Cs differed by species, location and stream velocity. This study was undertaken in a limited number of samples and sites, with more extensive studies planned to fully determine the impact of radionuclides on aquatic ecosystems.


Algae Aquatic insects Litter Radioactive cesium Stream 



We would like to thank Dr. Makino, Dr. Takahashi and Dr. Ikeda of the Forestry and Forest Products Research Institute for their assistance with the sampling survey and measurement of radioactive substances, Dr. Yamamoto of the National Research Institute of Aquaculture, and Dr. Yokozuka and Dr. Yoshida of the fisheries experimental station of Tochigi Prefecture for their assistance with the sampling survey. This work was supported in part by a research grant from the Council of Science and Technology Policy in 2012, Japan.


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Copyright information

© Springer Science+Business Media Dordrecht 2013

Authors and Affiliations

  1. 1.Kansai Research CenterForestry and Forest Products Research InstituteFushimiJapan
  2. 2.Forestry and Forest Products Research InstituteTsukubaJapan

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