• 784 Citations
  • 16 h-Index
1993 …2019

Research output per year

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Research Output

  • 784 Citations
  • 16 h-Index
  • 69 Article
  • 1 Comment/debate
2019
6 Citations (Scopus)

Fungal spore involvement in the resuspension of radiocaesium in summer

Igarashi, Y., Kita, K., Maki, T., Kinase, T., Hayashi, N., Hosaka, K., Adachi, K., Kajino, M., Ishizuka, M., Sekiyama, T. T., Zaizen, Y., Takenaka, C., Ninomiya, K., Okochi, H. & Sorimachi, A., 2019 Dec 1, In : Scientific reports. 9, 1, 1954.

Research output: Contribution to journalArticle

Open Access
4 Citations (Scopus)

Ground-based observation of lightning-induced nitrogen oxides at a mountaintop in free troposphere

Wada, R., Sadanaga, Y., Kato, S., Katsumi, N., Okochi, H., Iwamoto, Y., Miura, K., Kobayashi, H., Kamogawa, M., Matsumoto, J., Yonemura, S., Matsumi, Y., Kajino, M. & Hatakeyama, S., 2019 Jun 15, In : Journal of Atmospheric Chemistry. 76, 2, p. 133-150 18 p.

Research output: Contribution to journalArticle

Humic-like substances global levels and extraction methods in aerosols

Katsumi, N., Miyake, S., Okochi, H., Minami, Y., Kobayashi, H., Kato, S., Wada, R., Takeuchi, M., Toda, K. & Miura, K., 2019 Jun 15, In : Environmental Chemistry Letters. 17, 2, p. 1023-1029 7 p.

Research output: Contribution to journalArticle

2018
1 Citation (Scopus)

Development of an analytical method for the detection of NOz and its application to the atmospheric analysis at a mountain site

Wada, R., Sadanaga, Y., Kato, S., Katsumi, N., Okochi, H., Iwamoto, Y., Miura, K., Kobayashi, H., Kamogawa, M., Matsumoto, J., Yonemura, S., Matsumi, Y., Kajino, M. & Hatakeyama, S., 2018 Jan 1, In : Bunseki Kagaku. 67, 6, p. 333-340 8 p.

Research output: Contribution to journalArticle

2 Citations (Scopus)

Diurnal Variations in Partitioning of Atmospheric Glyoxal and Methylglyoxal between Gas and Particles at the Ground Level and in the Free Troposphere

Mitsuishi, K., Iwasaki, M., Takeuchi, M., Okochi, H., Kato, S., Ohira, S. I. & Toda, K., 2018 Sep 20, In : ACS Earth and Space Chemistry. 2, 9, p. 915-924 10 p.

Research output: Contribution to journalArticle

4 Citations (Scopus)

The impacts of “urban-induced heavy rains” on the distribution of deposition fluxes of inorganic acidic substances in the Tokyo metropolitan area in summer

Uchiyama, R., Okochi, H., Kamiya, J., Asai, D., Kaneko, C., Ogata, H. & Katsumi, N., 2018 Feb 1, In : Atmospheric Research. 200, p. 109-116 8 p.

Research output: Contribution to journalArticle

3 Citations (Scopus)

The seasonal variations of atmospheric 134,137Cs activity and possible host particles for their resuspension in the contaminated areas of Tsushima and Yamakiya, Fukushima, Japan

Kinase, T., Kita, K., Igarashi, Y., Adachi, K., Ninomiya, K., Shinohara, A., Okochi, H., Ogata, H., Ishizuka, M., Toyoda, S., Yamada, K., Yoshida, N., Zaizen, Y., Mikami, M., Demizu, H. & Onda, Y., 2018 Dec 1, In : Progress in Earth and Planetary Science. 5, 1, 12.

Research output: Contribution to journalArticle

6 Citations (Scopus)

Ultracompact Compton camera for innovative gamma-ray imaging

Kataoka, J., Kishimoto, A., Taya, T., Mochizuki, S., Tagawa, L., Koide, A., Sueoka, K., Morita, H., Maruhashi, T., Fujieda, K., Kurihara, T., Arimoto, M., Okochi, H., Katsumi, N., Kinno, S., Matsunaga, K., Ikeda, H., Shimosegawa, E., Hatazawa, J., Ohsuka, S. & 6 others, Toshito, T., Kimura, M., Nagao, Y., Yamaguchi, M., Kurita, K. & Kawachi, N., 2018 Dec 21, In : Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 912, p. 1-5 5 p.

Research output: Contribution to journalArticle

5 Citations (Scopus)
2017

First demonstration of aerial gamma-ray imaging using drone for prompt radiation survey in Fukushima

Mochizuki, S., Kataoka, J., Tagawa, L., Iwamoto, Y., Okochi, H., Katsumi, N., Kinno, S., Arimoto, M., Maruhashi, T., Fujieda, K., Kurihara, T. & Ohsuka, S., 2017 Nov 17, In : Journal of Instrumentation. 12, 11, P11014.

Research output: Contribution to journalArticle

12 Citations (Scopus)

Geochemical and stable isotope characteristics of urban heavy rain in the downtown of Tokyo, Japan

Uchiyama, R., Okochi, H., Ogata, H., Katsumi, N., Asai, D. & Nakano, T., 2017 Sep 15, In : Atmospheric Research. 194, p. 109-118 10 p.

Research output: Contribution to journalArticle

9 Citations (Scopus)

H and O isotopic differences in typhon and urban-induced heavy rain in Tokyo

Uchiyama, R., Okochi, H., Ogata, H., Katsumi, N., Asai, D. & Nakano, T., 2017 Jul 3, (Accepted/In press) In : Environmental Chemistry Letters. p. 1-7 7 p.

Research output: Contribution to journalArticle

3 Citations (Scopus)

High Time-Resolution Monitoring of Free-Tropospheric Sulfur Dioxide and Nitric Acid at the Summit of Mt. Fuji, Japan

Takeuchi, M., Miyazaki, Y., Tanaka, H., Isobe, T., Okochi, H. & Ogata, H., 2017, In : Water, Air, and Soil Pollution. 228, 9

Research output: Contribution to journalArticle

Long-term variations in the distribution of radioactive Cs in plant, soil, stream bottom sand in a small forest in Fukushima prefecture

Kinno, S., Okochi, H., Katsumi, N., Ogata, H., Kataoka, J., Kishimoto, A., Iwamoto, Y., Sorimachi, A. & Tokonami, S., 2017, In : Bunseki Kagaku. 66, 3, p. 163-174 12 p.

Research output: Contribution to journalArticle

The impact of air pollutants on rainwater chemistry during “urban-induced heavy rainfall” in downtown Tokyo, Japan

Uchiyama, R., Okochi, H., Katsumi, N. & Ogata, H., 2017 Jan 1, In : Journal of Geophysical Research. 122, 12, p. 6502-6519 18 p.

Research output: Contribution to journalArticle

7 Citations (Scopus)
2016

Atmospheric CO, O3, and SO2 measurements at the summit of Mt. Fuji during the summer of 2013

Kato, S., Shiobara, Y., Uchiyama, K., Miura, K., Okochi, H., Kobayashi, H. & Hatakeyama, S., 2016 Oct, In : Aerosol and Air Quality Research. 16, 10, p. 2368-2377 10 p.

Research output: Contribution to journalArticle

13 Citations (Scopus)

Novel methods for estimating 3D distributions of radioactive isotopes in materials

Iwamoto, Y., Kataoka, J., Kishimoto, A., Nishiyama, T., Taya, T., Okochi, H., Ogata, H. & Yamamoto, S., 2016 Sep 21, In : Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 831, p. 295-300 6 p.

Research output: Contribution to journalArticle

6 Citations (Scopus)
2015

Diurnal variation of atmospheric electric field at the summit of Mount Fuji, Japan, distinctly different from the Carnegie curve in the summertime

Kamogawa, M., Suzuki, Y., Sakai, R., Fujiwara, H., Torii, T., Kakinami, Y., Watanabe, Y., Sato, R., Hashimoto, S., Okochi, H., Miura, K., Yasuda, H., Orihara, Y. & Suzuki, T., 2015 Apr 28, In : Geophysical Research Letters. 42, 8, p. 3019-3023 5 p.

Research output: Contribution to journalArticle

4 Citations (Scopus)

Recent progress of MPPC-based scintillation detectors in high precision X-ray and gamma-ray imaging

Kataoka, J., Kishimoto, A., Fujita, T., Nishiyama, T., Kurei, Y., Tsujikawa, T., Oshima, T., Taya, T., Iwamoto, Y., Ogata, H., Okochi, H., Ohsuka, S., Ikeda, H. & Yamamoto, S., 2015 Jun 1, In : Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 784, p. 248-254 7 p.

Research output: Contribution to journalArticle

30 Citations (Scopus)
2014

Foliar rinse study of atmospheric black carbon deposition to leaves of konara oak (Quercus serrata) stands

Hara, H., Kashiwakura, T., Kitayama, K., Bellingrath-Kimura, S. D., Yoshida, T., Takayanagi, M., Yamagata, S., Murao, N., Okouchi, H. & Ogata, H., 2014 Apr 1, In : Atmospheric Environment. 97, p. 511-518 8 p.

Research output: Contribution to journalArticle

5 Citations (Scopus)

Individual aerosol particles in and below clouds along a Mt. Fuji slope: Modification of sea-salt-containing particles by in-cloud processing

Ueda, S., Hirose, Y., Miura, K. & Okochi, H., 2014 Feb 1, In : Atmospheric Research. 137, p. 216-227 12 p.

Research output: Contribution to journalArticle

13 Citations (Scopus)

Performance and field tests of a handheld Compton camera using 3-D position-sensitive scintillators coupled to multi-pixel photon counter arrays

Kishimoto, A., Kataoka, J., Nishiyama, T., Fujita, T., Takeuchi, K., Okochi, H., Ogata, H., Kuroshima, H., Ohsuka, S., Nakamura, S., Hirayanagi, M., Adachi, S., Uchiyama, T. & Suzuki, H., 2014 Nov 1, In : Journal of Instrumentation. 9, 11, P11025.

Research output: Contribution to journalArticle

23 Citations (Scopus)
2013

Determination of polycyclic aromatic hydrocarbons in atmospheric water using stir bar sorptive extraction and HPLC with fluorescence detection

Fujita, M., Okochi, H., Ogata, H., Nagoya, T. & Minami, Y., 2013, In : Bunseki Kagaku. 62, 12, p. 1111-1116 6 p.

Research output: Contribution to journalArticle

1 Citation (Scopus)

Rapid determination of anionic surfactants in atmospheric aerosol in an urban area using an improved methylene blue method

Soda, M., Okochi, H., Ogata, H. & Okawa, H., 2013, In : Bunseki Kagaku. 62, 7, p. 589-594 6 p.

Research output: Contribution to journalArticle

2010
11 Citations (Scopus)

Comparison of PAHs, Nitro-PAHs and Oxy-PAHs associated with airborne particulate matter at roadside and urban background sites in downtown Tokyo, Japan

Kojima, Y., Inazu, K., Hisamatsu, Y., Okochi, H., Baba, T. & Nagoya, T., 2010 Oct 1, In : Polycyclic Aromatic Compounds. 30, 5, p. 321-333 13 p.

Research output: Contribution to journalArticle

12 Citations (Scopus)
2 Citations (Scopus)
2 Citations (Scopus)

Influence of secondary formation on atmospheric occurrences of oxygenated polycyclic aromatic hydrocarbons in airborne particles

Kojima, Y., Inazu, K., Hisamatsu, Y., Okochi, H., Baba, T. & Nagoya, T., 2010 Aug 1, In : Atmospheric Environment. 44, 24, p. 2873-2880 8 p.

Research output: Contribution to journalArticle

41 Citations (Scopus)

Long-term performance of a solar-powered small automatic rainwater collector and its application to acid deposition monitoring in the southeast mountainside of Mt. Fuji

Maruyama, S., Okochi, H., Takemura, N. & Minami, Y., 2010 Jul 16, In : BUNSEKI KAGAKU. 59, 5, p. 357-362 6 p.

Research output: Contribution to journalArticle

2008

Atmospheric occurrence of 2-nitrobenzanthrone associated with airborne particles in central Tokyo

Inazu, K., Nam, V. D., Asato, T., Okochi, H., Hisamatsu, Y., Kobayashi, T. & Baba, T., 2008 Aug 1, In : Polycyclic Aromatic Compounds. 28, 4-5, p. 562-577 16 p.

Research output: Contribution to journalArticle

5 Citations (Scopus)

Effect of atmospheric humic-like substances on the enhanced dissolution of volatile organic compounds into dew water

Okochi, H., Sato, E., Matsubayashi, Y. & Igawa, M., 2008 Mar 1, In : Atmospheric Research. 87, 3-4, p. 213-223 11 p.

Research output: Contribution to journalArticle

8 Citations (Scopus)
2007

Adsorption of air pollutants on the grain surface of Japanese cedar pollen

Okuyama, Y., Matsumoto, K., Okochi, H. & Igawa, M., 2007 Jan, In : Atmospheric Environment. 41, 2, p. 253-260 8 p.

Research output: Contribution to journalArticle

36 Citations (Scopus)

Development of solar-powered rainwater collector and observation of wet deposition fluxes on the mountainside of Mt. Fuji

Funakura, T., Okochi, H., Nagoya, T., Inazu, K., Minami, Y. & Igarashi, Y., 2007 Nov 21, In : BUNSEKI KAGAKU. 56, 9, p. 805-811 7 p.

Research output: Contribution to journalArticle

4 Citations (Scopus)

Erratum to "Adsorption of air pollutants on the grain surface of Japanese cedar pollen". [Atmospheric Environment 41 (2007) 253-260] (DOI:10.1016/j.atmosenv.2006.08.009)

Okuyama, Y., Matsumoto, K., Okochi, H. & Igawa, M., 2007 Jun 1, In : Atmospheric Environment. 41, 18, p. 3939-3940 2 p.

Research output: Contribution to journalComment/debate

1 Citation (Scopus)

Preliminary study on evaluation of effects of acid deposition on forested ecosystem in East Tanzawa Mountains estimated from chemical characteristics of stream waters

Honda, T., Okochi, H., Inadzu, K. & Igawa, M., 2007 Nov 21, In : BUNSEKI KAGAKU. 56, 9, p. 791-798 8 p.

Research output: Contribution to journalArticle

1 Citation (Scopus)
2006

Scavenging effect of precipitation on volatile organic compounds in ambient atmosphere

Sato, E., Matsumoto, K., Okochi, H. & Igawa, M., 2006 Nov 10, In : Bulletin of the Chemical Society of Japan. 79, 8, p. 1231-1233 3 p.

Research output: Contribution to journalArticle

10 Citations (Scopus)
2005

Enhanced dissolution of volatile organic compounds into urban dew water collected in Yokohama, Japan

Okochi, H., Kataniwa, M., Sugimoto, D. & Igawa, M., 2005 Oct 1, In : Atmospheric Environment. 39, 33, p. 6027-6036 10 p.

Research output: Contribution to journalArticle

17 Citations (Scopus)
2004

Characteristics of water-soluble components of atmospheric aerosols in Yokohama and Mt. Oyama, Japan from 1990 to 2001

Takeuchi, M., Okochi, H. & Igawa, M., 2004 Sep 1, In : Atmospheric Environment. 38, 28, p. 4701-4708 8 p.

Research output: Contribution to journalArticle

28 Citations (Scopus)

The enhanced dissolution of some chlorinated hydrocarbons and monocyclic aromatic hydrocarbons in rainwater collected in Yokohama, Japan

Okochi, H., Sugimoto, D. & Igawa, M., 2004 Aug 1, In : Atmospheric Environment. 38, 26, p. 4403-4414 12 p.

Research output: Contribution to journalArticle

16 Citations (Scopus)
2003

Deposition of coarse soil particles and ambient gaseous components dominating dew water chemistry

Takeuchi, M., Okochi, H. & Igawa, M., 2003 May 27, In : Journal of Geophysical Research D: Atmospheres. 108, 10, p. ACH 4-1 - 4-5

Research output: Contribution to journalArticle

12 Citations (Scopus)

Transport characteristics of neutralization dialysis and desalination of tap water

Igawa, M., Mikami, K. & Okochi, H., 2003 Feb 1, In : Bulletin of the Chemical Society of Japan. 76, 2, p. 437-441 5 p.

Research output: Contribution to journalArticle

3 Citations (Scopus)
2002

Acid fog removes calcium and boron from fir tree: One of the possible causes of forest decline

Igawa, M., Okumura, K., Okochi, H. & Sakurai, N., 2002 Nov 16, In : Journal of Forest Research. 7, 4, p. 213-215 3 p.

Research output: Contribution to journalArticle

8 Citations (Scopus)
16 Citations (Scopus)

High frequency and large deposition of acid fog on high elevation forest

Igawa, M., Matsumura, K. & Okochi, H., 2002 Jan 1, In : Environmental Science and Technology. 36, 1, p. 1-6 6 p.

Research output: Contribution to journalArticle

38 Citations (Scopus)

Potential trace metal-organic complexation in the atmosphere.

Okochi, H. & Brimblecombe, P., 2002 Mar 21, In : TheScientificWorldJournal. 2, p. 767-786 20 p.

Research output: Contribution to journalArticle

43 Citations (Scopus)

Selective transport of heavy metal ions across a cation-exchange membrane with a chelating agent in the receiving phase

Igawa, M., Narita, Y. & Okochi, H., 2002 Oct 1, In : Bulletin of the Chemical Society of Japan. 75, 10, p. 2269-2273 5 p.

Research output: Contribution to journalArticle

2 Citations (Scopus)

Severe leaching of calcium ions from fir needles caused by acid fog

Igawa, M., Kase, T., Satake, K. & Okochi, H., 2002 Apr 27, In : Environmental Pollution. 119, 3, p. 375-382 8 p.

Research output: Contribution to journalArticle

19 Citations (Scopus)