Impacts of Fukushima Nuclear Accident on Freshwater Environments

ISBN-13: 9789811636738 / Angielski / Miękka / 2022 / 247 str.

Seiya Nagao

Opis

​This book examines the impacts of radionuclides released from the 2011 Fukushima Daiichi Nuclear Power Plant (FDNPP) accident on inland aquatic environments. The focus is on the dynamics of radiocesium in inland aquatic environments.The book comprises three parts: migration behavior of radiocesium in river and lake environment, accumulation of radiocesium into organisms in freshwater, and integrated environmental analysis in a lake system and a forest-freshwater system. Many studies on the dynamics of radionuclides have been published after the FDNPP accident, especially of radiocesium (¹³⁴Cs ¹³⁷Cs) in land and marine environment. The key features of this book are the new data of freshwater environment including transport of radionuclides in river and lake watershed, and accumulation of radiocesium in freshwater fishes and insects. Another feature of this book is that it summarizes the dataset of a model lake, Lake Akagi-Onuma, from geochemical and biological approaches.Readers will learn the actual dispersion behavior of radionuclides released from the Fukushima accident and their impacts on freshwater environments since the accident in 2011. The book presents valuable information for assessing the impacts of the FDNPP accident on ecosystem and human health, which are also useful in developing countermeasures for similar accidents and environmental contaminations.

Spis treści

Chapter 1 Introduction  Seiya NAGAO

Chapter 2 Rivers and lake environment

2.1 Migration behavior of radiocesium released from the Fukushima accident in Japanese river systems during four months after the accident

Seiya NAGAO, Shinya OCHIAI

2.2 Spatial and temporal fluctuations of nuclear accident-derived ¹³⁷Cs and ³H concentration in river waters in eastern Fukushima, Japan  

Shinji UEDA

2.3 Spatial and temporal changes of ¹³⁷Cs concentrations in river waters and the relations with the radiocesium inventory in Fukushima and adjacent areas  

Shinya OCHIAI, Shinji UEDA, Hideki TSUJI, Seiya NAGAO

2.4 Radiocesium Dynamics in a Dam Lake after the Fukushima Daiichi Nuclear Power Plant Accident

Hideki TSUJI

2.5 Record of income and outgo of radioactive cesium in lake Cyuzenji
Seiichi NOHARA, Tetsuya YOKOTUKA, Isao KOBORI 

Chapter 3 Ecosystem 

3.1 Annual changes of ¹³⁷Cs concentrations in freshwater fishes

Nobuyoshi ISHII

3.2　Radiocesium concentrations in brown trout in Lake Chuzenji after the Fukushima Daiichi Nuclear Power Plant accident
Tetsuya YOKOTUKA, Masahiro AKUTSU, Takatoshi TSUNAGAWA, Isao KOBORI, Seiichi NOHARA

3.3A review of radioactive contamination in a freshwater ecosystem in Nikko area, Japan

Mayumi YOSHIMURA, Akio AKAMA

3.5 Radiocesium concentrations in great cormorants (Phalacrocorax carbo) after the Fukushima Dai-ichi Nuclear Power Plant accident

Kyuma SUZUKI, Shun WATANABE, Hideki TANAKA, Masanobu MMORI, Kin-ichi TSUNODA

3.4 Variations in ^134+137Cs radioactivity level of suspended particulate matter in streams and its respond to aquatic insect after FDNP accident

Takeshi FUJINO, Sho SATO, Masaru SAKAI, and Takashi Gomi

Chapter 4 Case study—Lake Akagi Onuma 

The dynamics of radiocesium in the lake ecosystem of lake Onuma on Mt. Akagi

Shun WATANABE

O autorze

Seiya Nagao is a Professor and the Director, Institute of Nature and Environmental Technology (K-INET), Kanazawa University, Japan. Main topic of the K-INET focuses on transboundary pollution via atmosphere and ocean at East Asia under the Joint-Usage/Research program organized by the Ministry of Education, Culture, Sports, Science and Technology, Japan. His carrier has positions in institution and academia, including Japan Atomic Energy Research Institute (present: Japan Atomic Energy Agency), Hokkaido University and Kanazawa University. His research interests are fate of organic matter and radionuclides in aquatic environments. He also interests integrated environmental studies at atmosphere-land-coastal ocean, based on migration behavior of geo-materials.