Shipboard determination of radiocesium in seawater after the Fukushima accident: results from the 2011–2012 Russian expeditions to the Sea of Japan and western North Pacific Ocean

Рамзаев, В. П.; Nikitin, Alexander; Sevastyanov, A. V.; Artemiev, G.; Bruk, G. Ya.; Иванов, С. А.

doi:10.1016/j.jenvrad.2014.03.016

Cited by 29 publications

(16 citation statements)

References 41 publications

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“…(, , ,b); Ramzaev et al . (); Smith et al . () [Colour figure can be viewed at wileyonlinelibrary.com].…”

Section: Radioactive Cesium In Adjacent Seasmentioning

confidence: 95%

“…They concluded that Fukushimaderived atmospheric deposition of radioactive Cs was observed only in the northeastern area of Japan Sea. Ramzaev et al (2014) reported the background level 137 Cs at two stations (1.6 and 1.7 Bq m À3 ) in the northern part of Japan Sea in April 2011, and 1.4-3.6 Bq m À3 just south of the Kuril Islands, Oyashio region during April and May 2011. 134 Cs at a level of 0.3-2.6 Bq m À3 was observed in seawater samples collected in 2011 near the Kuril Islands and Kamchatka in the Oyashio region.…”

Section: Radioactive Cesium In Adjacent Seasmentioning

confidence: 99%

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Oceanic dispersion of Fukushima‐derived radioactive cesium: a review

Kaeriyama

2016

Fisheries Oceanography

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This review summarizes the more than 70 papers published during the 4 years since the Fukushima Dai-ichi nuclear power plant accident that occurred on 11 March 2011, and details the radioactive cesium dispersion pattern in the North Pacific and adjacent seas. The total amount of Fukushima-derived radioactive cesium released into the North Pacific via atmospheric deposition and direct release, spatial and temporal changes in the Pacific coast around the accident site, and the concentration levels of radioactive cesium around the Japanese Islands, not only the Pacific coast but also in adjacent seas, such as Japan Sea, East China Sea are summarized. Based on observational data mostly obtained during 2 years since the accident, and simulation results, oceanic dispersion of radioactive cesium in the entire area of the North Pacific is described. The Fukushima-derived radioactive cesium dispersed eastward as surface water and extended to the eastern side of the North Pacific in 2014, and was also observed via a southward intrusion to subsurface waters as Subtropical Mode Water and Central Mode Water. The radioactive cesium movement related to mode water is important in terms of the circulation of cesium into the ocean interior. Some new technologies and techniques concerning emergency monitoring of radioactivity in the ocean environment are also reported, the effectiveness of which has been demonstrated by use in relation to the Fukushima accident.

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“…(, , ,b); Ramzaev et al . (); Smith et al . () [Colour figure can be viewed at wileyonlinelibrary.com].…”

Section: Radioactive Cesium In Adjacent Seasmentioning

confidence: 95%

Section: Radioactive Cesium In Adjacent Seasmentioning

confidence: 99%

Oceanic dispersion of Fukushima‐derived radioactive cesium: a review

Kaeriyama

2016

Fisheries Oceanography

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“…Lots of measurements were between 2 and 6 PBq range (Miyazawa et al, 2013;Nair et al, 2014;Prime Minister of Japan & His Cabinet, 2011;Tsumune, Tsubono, Aoyama, & Hirose, 2012 Cs in winter 2012 approximately in one-to-one relationship (slope ¼ 1.009 ± .006) as shown in Figure 1 (Aoyama et al, 2012;Kameník et al, 2013;Kofuji & Inoue, 2013;Ramzaev et al, 2014 ).…”

Section: Measurement Of Radiocaesium In Japanese Islandsmentioning

confidence: 96%

“…Many efforts to measure and find data of Fukushima resulting radiocaesium contamination at surface and interior oceanic water are constant and some have been reported which showed transportation of Fukushima-derived radiocaesium into the North Pacific Ocean by surface currents. (Buesseler et al, 2012;Aoyama, Uematsu, Tsumune, & Hamajima, 2013;Kameník, Dulaiova, Buesseler, Pike, & Stastn, 2013;Kaeriyama et al, 2014;Kumamoto, Aoyama, Hamajima, Murata, & Kawano, 2015;Ramzaev et al, 2014 Cs (Inoue et al, 2012;Kameník et al, 2013;Ramzaev et al, 2014).…”

Section: Contamination Of Radiocaesium In Western North Pacific Oceanmentioning

confidence: 99%

Radiocaesium contaminated sites and possible techniques for remediation

Khan

Noor

2017

Geology, Ecology, and Landscapes

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Radiocaesium being very soft, lustrous, and highly reactive metal is very harmful if present in large quantity in the environment. Here in this chapter, we will discuss the contaminated sites and possible remediation methods of radiocaesium just to eliminate from ecosystem and make our planet green and peaceful. Lots of radionuclides released not only to atmosphere but also into the oceans, rivers, lakes, and other water bodies after global fallout, Chernobyl accident, giant tsunami, and Fukushima nuclear power plant accident in 2011. It damaged all the living on terrestrial and aquatic ecosystems. Many attempts have been taken into account to reduce its dangerous effects but still world is facing this enigma. Many polluted sites and treatments have been discussed in detail.

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“…The Fukushima accident led to a significant atmospheric emission of the long-lived radionuclides 134 Cs and 137 Cs that fell to the surface of land and sea in the entire Northern Hemisphere [1][2][3]. Such fallout were registered in Russia, specifically in its Far-Eastern territories and the adjacent regions of Pacific Ocean [4][5][6]. Shortly after the accident, when the situation with actual levels of Fukushima fallout on the Russian territory remained unclear, the Federal Service for Surveillance on Consumer Rights Protection and Human Well-Being (Rospotrebnadzor) initiated a monitoring program on the assessment of radioactive contamination of the locally produced food and imported foodstuff [7,8].…”

Section: Introductionmentioning

confidence: 99%

Fukushima Fallout in Sakhalin Region, Russia, Part 3: 137cs and 134cs in Cow’s Milk

Рамзаев

Барковский

Громов

et al. 2018

Radiac. gig. (2008)

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period. Radiocaesium was isolated from thermally treated specimens using the antimony-iodide radiochemical method. The activity concentrations of 134 Cs and 137 Cs were measured by γ-ray spectrometry using high purity germanium detectors. Caesium-134 was detected in 18 of the total 22 samples of milk. The activity concentration of 134 Cs in the samples varied from 0.08 Bq kg -1 to 2.00 Bq kg -1 . Caesium-137 was quantified in all 22 samples: range = 0.088-2.43 Bq kg -1 . On average, more than a half of the total 137 Cs in the milk samples from Sakhalin Region was of Fukushima origin (mean = 60%, median = 57%, range = 13-95%). The highest activity concentrations and values of the soil-to-milk aggregated transfer coefficient, T ag , for 134 Cs (and Fukushimaderived 137 Cs) were observed in milk samples collected in mid-May 2011. The mean T ag values decreased in the May-October period of 2011 from 12 × 10 −3 m 2 kg -1 to 2.3 × 10 −3 m 2 kg -1 . In September 2012, the T ag values remained unchanged (mean = 2.8 × 10 −3 m 2 kg -1 ) compared to those in September-October 2011. In the autumns of 2011 and 2012, the calculated values of T ag for Fukushima-derived radiocaesium were on average 17 times larger than the ones for pre-Fukushima 137 Cs. The higher transfer of Fukushima-derived 137 Cs (compared to pre-Fukushima 137 Cs) for milk reflected the difference between the "new" and "aged" radiocaesium in the intensity of the radionuclide transfer from soil to grassland plants which were the major component of the cow's diet in the area of our study. The ratio between the 137 Cs activity concentration in the milk (fresh weight) and that in the grassland plants (dry weight) ranged from 0.028 to 0.11. The effective dose from ingestion of Fukushima-derived radiocaesium in locally produced cow's milk for critical group of adult residents of the southern Kuril in the first year after the accident is conservatively estimated as 0.0027 mSv. The Fukushima accident has had a negligible impact on radiocaesium contamination of cow's milk and the corresponding human exposure on the southern Kuril Islands: Shikotan, Kunashir and Iturup. Фукусимские выпадения в Сахалинской области России, сообщение 3: 137 Cs и 134 Cs в коровьем молоке В.П. Рамзаев, А.Н. Барковский, А.В. Громов, М.В. Кадука Санкт-Петербургский научно-исследовательский институт радиационной гигиены имени профессора П.В. Рамзаева, Федеральная служба по надзору в сфере защиты прав потребителей и благополучия человека, Санкт-Петербург, Россия Исследование проводилось на островах Кунашир, Шикотан и Итуруп (Сахалинская область России) для оценки влияния аварии на АЭС «Фукусима-1» на радиоактивное загрязнение коровьего молока. Всего в период с мая 2011 г. по сентябрь 2012 г. было отобрано 22 пробы молока. Радиоактивный цезий выделяли из проб после их сжигания и озоления с использованием радиохимического сурьмянойодидного метода. Удельную активность 134 Cs и 137 Cs определяли методом гамма-спектрометрии с использованием детекторов из особо чистого германия. Цезий-134 был о...

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Shipboard determination of radiocesium in seawater after the Fukushima accident: results from the 2011–2012 Russian expeditions to the Sea of Japan and western North Pacific Ocean

Cited by 29 publications

References 41 publications

Oceanic dispersion of Fukushima‐derived radioactive cesium: a review

Oceanic dispersion of Fukushima‐derived radioactive cesium: a review

Radiocaesium contaminated sites and possible techniques for remediation

Fukushima Fallout in Sakhalin Region, Russia, Part 3: 137cs and 134cs in Cow’s Milk

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