Distributions of Radiocesium and Plutonium in the Korean Seas and North Pacific after the Fukushima Accident, 2011–2014
Abstract
:Highlights
- The first radiocesium and Pu isotopes data in Korean seas were present in 2011–2012;
- Higher 134Cs were observed in Korean seas immediately after the Fukushima accident;
- Fukushima-derived nuclides were introduced to Korean seas by the atmosphere for up to 2 months.
- The residence times of 137Cs in Korean seas water is estimated to be 8–25 years;
- The dataset could be used to predict the dispersion of anthropogenic pollutant;
- The dataset could also be used to validate the model for future NPP accident around the Korean seas.
Abstract
1. Introduction
2. Materials and Methods
2.1. Sampling
2.2. Analytical Procedure
2.2.1. 134Cs and 137Cs Analysis
2.2.2. 238Pu and 239+240Pu Analysis
3. Results and Discussion
3.1. Spatiotemporal Distributions of 134Cs and 137Cs in the Korean Seas, 2011–2012
3.2. Spatial Distributions of Pu Isotopes in the Korean Seas in 2011
3.3. Sectional Distribution of 134Cs and 137Cs in the North Pacific
3.4. Isotopic Ratios of Radionuclides in the Korean Seas and the Pacific
3.5. Estimation of the Mean Residence time of 137Cs in Korean Seas
4. Conclusions
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
References
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Lee, J.; Kim, S.H.; Lee, H.; Lee, H.; Kim, I. Distributions of Radiocesium and Plutonium in the Korean Seas and North Pacific after the Fukushima Accident, 2011–2014. J. Mar. Sci. Eng. 2022, 10, 1541. https://doi.org/10.3390/jmse10101541
Lee J, Kim SH, Lee H, Lee H, Kim I. Distributions of Radiocesium and Plutonium in the Korean Seas and North Pacific after the Fukushima Accident, 2011–2014. Journal of Marine Science and Engineering. 2022; 10(10):1541. https://doi.org/10.3390/jmse10101541
Chicago/Turabian StyleLee, Jaeeun, Suk Hyun Kim, Huisu Lee, Hyunmi Lee, and Intae Kim. 2022. "Distributions of Radiocesium and Plutonium in the Korean Seas and North Pacific after the Fukushima Accident, 2011–2014" Journal of Marine Science and Engineering 10, no. 10: 1541. https://doi.org/10.3390/jmse10101541