Radioactivity of Hydrological and Coastal Systems: Research Advances after Major Nuclear Accidents

Dear Colleagues,

The World is approaching the 35th anniversary of the Chernobyl Nuclear Power Plant (ChNPP) accident that occurred on 26 April 1986, and the 10th anniversary of the Fukushima-Daiichi NPP (FDNPP) accident that occurred on 11 March 2011, which were the two largest nuclear accidents in the human history. Both accidents caused widespread environmental contamination, including the pollution of air, soil, rivers, reservoirs, lakes, groundwater, aquatic biota, and coastal zones of the seas and oceans. The ChNPP accident heavily polluted the watersheds of the lowland rivers of Ukraine, Belarus, the Russian Federation, and part of Western Europe. The FDNPP accident heavily polluted mountainous watersheds. Although the consequences of both accidents have been intensely studied over the years, the approaching anniversaries give an occasion for summing up the results of recent studies on the fate and transport of radionuclides in water, sediments, and aquatic biota in the zones impacted by the ChNPP and FDNPP accidents, along with the results of studies of the radioactivity of natural waters throughout the world. This Special Issue of Water calls for papers presenting recent advances in experimental and modeling studies of radioactivity in natural waters aimed at the following topics:

• Transfer of radionuclides in the soil–water system and the effects of erosion on the washout of radionuclides from catchments.
• Fate and transport of radionuclides in rivers, hyporheic zones, oceans, lakes, reservoirs, and groundwater.
• Transfer of radionuclides in the coastal zone of seas, including studies of erosion, transportation, and deposition in the zones of interaction of sea and river waters.
• Aquatic radioecology—the radioactivity of freshwaters and marine biota.
• Development and application of mathematical models and numerical simulations for forecasting radionuclide fate and transport in hydro-ecological systems and decision making.

Papers dealing with the fate and transport of naturally occurring radionuclides will also be welcomed.

Prof. Dr. Mark Zheleznyak
Dr. Boris Faybishenko
Prof. Dr. Hyoe Takata
Prof. Dr. Toshihiro Wada
Guest Editors

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