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Kohji Marumoto

Central Research Institute of Electric Power Industry

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Publication

Featured researches published by Kohji Marumoto.

Applied Optics | 2004

Development of a differential-absorption lidar system for measurement of atmospheric atomic mercury by use of the third harmonic of an LDS-dye laser

Takuya Nayuki; Kohji Marumoto; Takashi Fujii; Tetsuo Fukuchi; Koshichi Nemoto; Akira Shirakawa; Ken-ichi Ueda

A differential-absorption lidar system that uses a long-life transmitter for monitoring of atomic-mercury concentrations in the atmosphere has been developed. The third harmonic of a tunable dye laser with LDS 765 dye pumped by the second harmonic of a Nd:YAG laser was used as the emitted beam from the transmitter. By use of this system, atmospheric concentrations of atomic mercury of less than 0.4 part in 10(12) were measured. The time trend of the measured concentration agreed with that obtained by a conventional gold amalgamation method combined with atomic absorption spectroscopy on the ground.

Atmospheric Environment | 2005

Wet and dry deposition fluxes of mercury in Japan

Masahiro Sakata; Kohji Marumoto

Atmospheric Environment | 2002

Formation of atmospheric particulate mercury in the Tokyo metropolitan area

Masahiro Sakata; Kohji Marumoto

Atmospheric Environment | 2006

Regional variations in wet and dry deposition fluxes of trace elements in Japan

Masahiro Sakata; Kohji Marumoto; Masahiro Narukawa; Kazuo Asakura

Environmental Science & Technology | 2004

Dry deposition fluxes and deposition velocities of trace metals in the Tokyo metropolitan area measured with a water surface sampler.

Masahiro Sakata; Kohji Marumoto

Journal of Oceanography | 2006

Air-sea exchange of mercury in Tokyo Bay

Masahiro Narukawa; Masahiro Sakata; Kohji Marumoto; Kazuo Asakura

Journal of Oceanography | 2006

Mass balance and sources of mercury in Tokyo bay

Masahiro Sakata; Kohji Marumoto; Masahiro Narukawa; Kazuo Asakura

Atmospheric Environment | 2014

Mercury speciation in wet deposition samples collected from a coastal area of Minamata Bay

Kohji Marumoto

Atmospheric Environment | 2015

Atmospheric mercury concentrations at two sites in the Kyushu Islands, Japan, and evidence of long-range transport from East Asia

Kohji Marumoto; Masahiko Hayashi; Akinori Takami

Journal of Environmental Chemistry | 2004

Annual Changes in Wet Deposition Fluxes of Trace Metals and Scavenging of Mercury by Precipitation in the Western Tokyo Metropolitan Area

Masahiro Sakata; Kohji Marumoto

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Masahiro Sakata

University of Shizuoka

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Kazuo Asakura

Central Research Institute of Electric Power Industry

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Masahiro Narukawa

Nagoya University

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Ken-ichi Ueda

Central Research Institute of Electric Power Industry

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Koshichi Nemoto

Central Research Institute of Electric Power Industry

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Takashi Fujii

Central Research Institute of Electric Power Industry

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Takuya Nayuki

Central Research Institute of Electric Power Industry

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Tetsuo Fukuchi

Central Research Institute of Electric Power Industry

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Akinori Takami

National Institute for Environmental Studies

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Akira Shirakawa

Polish Academy of Sciences

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