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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2020.1
- 수록면
- 366 - 372 (7page)
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Using several accessible published data sets, we analyzed the temporal change of 137Cs radioactivity (per unit mass of sample) in marine sediments and investigatedthe effectof thewatercontentof sedimenton the 137Cs radioactivity, to understand the behavior of 137Cs present in marine environments. The 137Cs radioactivity in sediments decreased more slowly in the Baltic Sea (near the Chernobyl nuclear power plant) than in the ocean near the Fukushima Daiichi nuclear power plant (FDNPP). The 137Cs radioactivity in the sediment near the FDNPP tended to increase as the watercontentincreased, and thewatercontent decreased at certain sampling sites near the FDNPP for several years. Additionally, the decrease in the water content contributed to 51.2% of the average 137Cs radioactivity decrease rate for the same period. Thus, it may be necessary to monitor both the 137Cs radioactivity and the water content for marine sediments to track the 137Cs that was discharged from the sites of Chernobyl and Fukushima nuclear power plants where severe accidents occurred.
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참고문헌 (33)
참고문헌 신청
T. Zalewska / 2013 / Anthropogenic radionuclides 137Cs and 90Sr in the southern Baltic Sea ecosystem / Oceanologia 55:485~517
TEPCO / Readings of Radioactivity Monitoring Results Near the Fukushima Daiichi Nuclear Power Plant Site, 2011-2016
K. Nakata / 2013 / Impacts of the Fukushima Nuclear Accident on Fish and Fishing Grounds
K. Yamamoto / 2015 / Model Estimation of 137Cs Concentration Change with Time in Seawater and Sediment Around the Fukushima Daiichi Nuclear Power Plant Site Considering Fast and Slow Reactions in the Seawater-Sediment Systems :867~881
E. E. Black / 2014 / Spatial Variability and the Fate of Cesium in Coastal Sediments Near Fukushima, Japan, 2011 :5123~5137
TEPCO / Readings of Radioactivity Monitoring Results Near the Fukushima Daiichi Nuclear Power Plant Site, 2011-2016
K. Nakata / 2013 / Impacts of the Fukushima Nuclear Accident on Fish and Fishing Grounds
K. Yamamoto / 2015 / Model Estimation of 137Cs Concentration Change with Time in Seawater and Sediment Around the Fukushima Daiichi Nuclear Power Plant Site Considering Fast and Slow Reactions in the Seawater-Sediment Systems :867~881
E. E. Black / 2014 / Spatial Variability and the Fate of Cesium in Coastal Sediments Near Fukushima, Japan, 2011 :5123~5137
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