Explanipedia

Impact of changing the wet deposition schemes in ldx on 137-cs atmosperic deposits after the fukushima accident Open

Arnaud Quérel, Denis Quélo, Yelva Roustan, Anne Mathieu, Mizuo Kajino , et al. · 2024

The Fukushima-Daiichi release of radioactivity is a relevant event to study the atmospheric dispersion modelling of radionuclides. Actually, the atmospheric deposition onto the ground may be studied through the map of measured Cs-137 estab…

Technique for estimating the charge number of individual radioactive particles using Kelvin probe force microscopy Open

Yukimi Shinke, Tatsuhiro Mori, Ayumi Iwata, Muhammad Aiman bin Mohd Nor, Keiichi Kurosawa , et al. · 2023

The Fukushima Daiichi Nuclear Power Plant accident in Japan resulted in the emission of many radioactive cesium (Cs)-containing particles that have charges on the surface due to self-charging. Charged aerosol particles are efficiently depo…

Vertical distribution of airborne microorganisms over forest environments: A potential source of ice-nucleating bioaerosols Open

Teruya Maki, Kentaro Hosaka, Kevin C. Lee, Yasuhiro Kawabata, Mizuo Kajino , et al. · 2023

Airborne microorganisms transported from forested areas can influence cloud formation by forming ice nuclei. However, the vertical transportation of airborne microorganisms over forested areas is not well understood. We collected aerosols …

Impacts on air dose rates after the Fukushima accident over the North Pacific from 19 March 2011 to 2 September 2015 Open

Kuo‐Ying Wang, Philippe Nédélec, Hannah Clark, Neil Harris, Mizuo Kajino , et al. · 2022

A fleet of thirteen in-service global container ships continuously measured the air dose rates over the North Pacific after the Fukushima Daiichi Nuclear Power Station (FDNPS) accident. The results showed that the elevated air dose rates o…

Atmospheric resuspension of insoluble radioactive cesium-bearing particles found in the difficult-to-return area in Fukushima Open

Peng Tang, Kazuyuki Kita, Yasuhito Igarashi, Yukihiko Satou, Koutarou Hatanaka , et al. · 2022

Relationship of 137Cs with Fungal Spore Tracers in the Ambient Aerosols from Fukushima after the 2011 Nuclear Accident, East Japan Open

Kimitaka Kawamura, Bhagawati Kunwar, Kazuyuki Kita, Naho Hayashi, Yasuhito Igarashi · 2022

Even after 7 years of the nuclear accident that occurred in 2011 at the Fukushima Dai-ichi nuclear power plant (F1NPP), high levels of 137Cs have been detected in ambient aerosols from some polluted areas of Fukushima. Higher levels of rad…

Reassessment of the radiocesium resuspension flux from contaminated ground surfaces in eastern Japan Open

Mizuo Kajino, Akira Watanabe, Masahide Ishizuka, Kazuyuki Kita, Yuji Zaizen , et al. · 2022

Resuspension of 137Cs from the contaminated ground surface to the atmosphere is essential for understanding the environmental behaviors of 137Cs and estimating external and inhalation exposure of residents. Kajino et al. (2016) assessed th…

Comment on acp-2021-687 Open

Mizuo Kajino, Akira Watanabe, Masahide Ishizuka, Kazuyuki Kita, Yuji Zaizen , et al. · 2021

Abstract. Resuspension of ¹³⁷Cs from the contaminated ground surface to the atmosphere is essential for understanding the environmental behaviors of ¹³⁷Cs and estimatin…

Reassessment of the radiocesium resuspension flux from contaminated ground surfaces in East Japan Open

Mizuo Kajino, Akira Watanabe, Masahide Ishizuka, Kazuyuki Kita, Yuji Zaizen , et al. · 2021

Resuspension of 137Cs from the contaminated ground surface to the atmosphere is essential for understanding the environmental behaviors of 137Cs and estimating external and inhalation exposure of residents. Kajino et al. (2016) assessed th…

Supplementary material to "Reassessment of the radiocesium resuspension flux from contaminated ground surfaces in East Japan" Open

Mizuo Kajino, Akira Watanabe, Masahide Ishizuka, Kazuyuki Kita, Yuji Zaizen , et al. · 2021

Atmospheric Resuspension of Insoluble Radioactive Cesium Particles Found in the Difficult-to-Return Area in Fukushima Open

Peng Tang, Kazuyuki Kita, Yasuhito Igarashi, Yukihiko Satou, Koutarou Hatanaka , et al. · 2021

The deposition of insoluble radiocesium bearing microparticles (CsMPs), which were released from the Fukushima Daiichi Nuclear Power Plant (F1NPP) accident in March 2011, has resulted in the widespread contamination of eastern Japan. Obvio…

Comparison of three aerosol representations of NHM-Chem (v1.0) for the simulations of air quality and climate-relevant variables Open

Mizuo Kajino, Makoto Deushi, Tsuyoshi Thomas Sekiyama, Naga Oshima, Keiya Yumimoto , et al. · 2021

This study provides comparisons of aerosol representation methods incorporated into a regional-scale nonhydrostatic meteorology–chemistry model (NHM-Chem). Three options for aerosol representations are currently available: the five-categor…

Simulation of the transition metal-based cumulative oxidative potential in East Asia and its emission sources in Japan Open

Mizuo Kajino, Hiroyuki Hagino, Yuji Fujitani, Tazuko Morikawa, Tetsuo Fukui , et al. · 2021

Widespread distribution of radiocesium-bearing microparticles over the greater Kanto Region resulting from the Fukushima nuclear accident Open

Yoshinari Abe, Seika Onozaki, Izumi Nakai, Kouji Adachi, Yasuhito Igarashi , et al. · 2021

The Fukushima Daiichi Nuclear Power Plant (FDNPP) accident in March 2011 emitted a considerable amount of radioactive materials. This study isolated radiocesium-bearing microparticles (CsMPs), a form of radioactive materials emitted from t…

Temporal variations of 90Sr and 137Cs in atmospheric depositions after the Fukushima Daiichi Nuclear Power Plant accident with long-term observations Open

Takeshi Kinase, Kouji Adachi, Tsuyoshi Thomas Sekiyama, Mizuo Kajino, Yuji Zaizen , et al. · 2020

We have measured artificial radionuclides, such as 90 Sr and 137 Cs, in atmospheric depositions since 1957 in Japan. We observed the variations in 90 Sr and 137 Cs, which were emitted from atmospheric nuclear tests and nuclear power plant …

Supplementary material to "Comparison of three aerosol representations of NHM-Chem (v1.0) for the simulations of air quality and climate-relevant variables" Open

Mizuo Kajino, Makoto Deushi, Tsuyoshi Thomas Sekiyama, Naga Oshima, Keiya Yumimoto , et al. · 2020

Comparison of three aerosol representations of NHM-Chem (v1.0) for the simulations of air quality and climate-relevant variables Open

Mizuo Kajino, Makoto Deushi, Tsuyoshi Thomas Sekiyama, Naga Oshima, Keiya Yumimoto , et al. · 2020

This study provides comparisons of aerosol representation methods incorporated into a regional-scale nonhydrostatic meteorology-chemistry model (NHM-Chem). Three options for aerosol representations are currently available: the 5-category n…

Rain-induced bioecological resuspension of radiocaesium in a polluted forest in Japan Open

Kazuyuki Kita, Yasuhito Igarashi, Takeshi Kinase, Naho Hayashi, Masahide Ishizuka , et al. · 2020

It is the conventional understanding that rain removes aerosols from the atmosphere. However, the question of whether rain plays a role in releasing aerosols to the atmosphere has recently been posed by several researchers. In the present …

Project IPAD, a database to catalogue the analysis of Fukushima Daiichi accident fragmental release material Open

Peter Martin, Omran Alhaddad, Yannick Verbelen, Yukihiko Satou, Yasuhito Igarashi , et al. · 2020

Modeling Transition Metals in East Asia and Japan and Its Emission Sources Open

Mizuo Kajino, Hiroyuki Hagino, Yuji Fujitani, Tazuko Morikawa, Tetsuo Fukui , et al. · 2020

Emission inventories of anthropogenic transition metals, which contribute to aerosol oxidative potential (OP), in Asia (Δ x = 0.25°, monthly, 2000–2008) and Japan (Δ x = 2 km, hourly, mainly 2012) were developed, based on bottom‐up invento…

Re-assessment of airborne radiocesium re-suspended from contaminated ground surface after the Fukushima Nuclear Accident Open

Mizuo Kajino, Akira Watanabe, Yasuhito Igarashi, Yuji Zaizen, Takeshi Kinase , et al. · 2020

<p><span>Kajino et al. (2016) (doi:10.5194/acp-16-13149-2016) assessed emission, transport, and deposition of airborne radiocesium from contaminated</span> ground surface after the Fukushima nuclear accident for the entir…

Rain-enhanced/induced bioecological resuspension of radiocaesium in a polluted forest in Fukushima Open

Yasuhito Igarashi, Kazuyuki Kita, Takashi Kinase, Naho Hayashi, Masahide Ishizuka , et al. · 2020

<p>It is the conventional understanding that rain removes aerosols from the atmosphere. However, the question of whether rain plays a role in releasing aerosols to the atmosphere has recently been posed by several researchers. In the…

Recent Understanding on the Release of Radionuclides and Their Behavior in the Atmosphere Open

Hiromi Yamazawa, Yasuhito Igarashi · 2020

東京電力福島第一原子力発電所事故により大気中に放出された放射性核種の事故初期の放出率の時間変化，大気中濃度の時間変化，大気拡散モデルによる再現に関する現状の理解について，最近の研究をレビューして概要を取りまとめた。事故当時の環境試料等からの大気中放射性核種濃度の復元が進みつつある。事故に由来する放射性物質の大気中の挙動についての理解を得るため，現在においても事故当時の核種組成，物理・化学的性状に関する研究が進められている。

Estimation of Uranium Sources in Environmental Samples Using the Isotopic Ratio Determination Open

Junko Shikimori, Takeshi Ohno, Yusuke Fukami, Yasuhito Igarashi · 2020

Investigation of Physical and Chemical Characteristics of Radioactive Aerosols Emitted From Reactor Unit 1 by Fukushima Daiichi Nuclear Power Plant Accident Open

Seika Onozaki, Yoshinari Abe, Izumi Nakai, Kouji Adachi, Yasuhito Igarashi , et al. · 2019

Three radioactive microparticles were separated from particles on filter tape samples collected hourly at a suspended particulate matter (SPM) monitoring site located at ∼25 km north of the Fukushima Daiichi Nuclear Power Plant (FDNPP), af…

Announcements Open

Yoshinori Iiguni, Reo Tamura, Shinya Kitagawa, Hajime Ohtani, Taichi Nakagawa , et al. · 2019

Chronic time-course analysis of the etoposide (ETOPO)-regulated transcriptome in rat liver Open

Yasuhito Igarashi · 2019

Acute time course analysis of the IL1B-regulated transcriptome in human primary hepatocytes Open

Yasuhito Igarashi · 2019

Acute time course analysis of the flutamide (FLUT)-regulated transcriptome in human primary hepatocytes Open

Yasuhito Igarashi · 2019

Acute time course analysis of the ranitidine (RANIT)-regulated transcriptome in human primary hepatocytes Open

Yasuhito Igarashi · 2019

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