World's Best Scientists 2026 revealed!
Kazuichi Hayakawa

Kazuichi Hayakawa

D-Index & Metrics

Chemistry

D-Index
58
Citations
12199
World Ranking
10605
National Ranking
773

Kazuichi Hayakawa publication distribution in Chemistry in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Chemistry in 2026. The highlighted bar marks where Kazuichi Hayakawa sits on this spectrum.

61–80 publications: 66 scientists 81–100 publications: 302 scientists 101–120 publications: 623 scientists 121–140 publications: 918 scientists 141–160 publications: 1,218 scientists 161–180 publications: 1,350 scientists 181–200 publications: 1,344 scientists 201–220 publications: 1,281 scientists 221–240 publications: 1,216 scientists 241–260 publications: 1,100 scientists 261–280 publications: 979 scientists 281–300 publications: 939 scientists 301–320 publications: 764 scientists 321–340 publications: 643 scientists 341–360 publications: 628 scientists 361–380 publications: 522 scientists 381–400 publications: 459 scientists 401–420 publications: 397 scientists 421–440 publications: 327 scientists 441–460 publications: 270 scientists 461–480 publications: 265 scientists 481–500 publications: 252 scientists 501–520 publications: 201 scientists 521–540 publications: 185 scientists 541–560 publications: 148 scientists 561–580 publications: 148 scientists 581–600 publications: 132 scientists 601–620 publications: 114 scientists 621–640 publications: 104 scientists 641–660 publications: 91 scientists 661–680 publications: 92 scientists 681–700 publications: 73 scientists 701–720 publications: 57 scientists 721–740 publications: 54 scientists 741–760 publications: 67 scientists 761–780 publications: 45 scientists 781–800 publications: 46 scientists 801–820 publications: 39 scientists 821–840 publications: 32 scientists 841–860 publications: 36 scientists 861–880 publications: 29 scientists 881–900 publications: 26 scientists 901–920 publications: 24 scientists 921–940 publications: 14 scientists 941–960 publications: 23 scientists 961–980 publications: 28 scientists 981–1,000 publications: 15 scientists 1,001–1,020 publications: 29 scientists 1,021–1,040 publications: 12 scientists 1,041–1,060 publications: 19 scientists 1,061–1,080 publications: 12 scientists 1,081–1,100 publications: 6 scientists 1,101–1,120 publications: 8 scientists 1,121–1,140 publications: 12 scientists 1,141–1,160 publications: 5 scientists 1,161–1,180 publications: 6 scientists 1,181–1,200 publications: 14 scientists 1,201–1,220 publications: 7 scientists 1,221–1,240 publications: 2 scientists 1,241–1,260 publications: 6 scientists 1,261–1,280 publications: 4 scientists 1,281–1,294 publications: 6 scientists 1,295+ publications: 100 scientists
61 publications 1,295+

This scientist: 422 publications — 82nd percentile

82% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,295 publications or more.

Kazuichi Hayakawa D-index placement in Chemistry in 2026

The chart shows the D-index (discipline H-index) distribution of Chemistry scientists ranked by Research.com in 2026. The highlighted bar marks where Kazuichi Hayakawa sits on this spectrum.

40–41 D-Index: 289 scientists 42–43 D-Index: 612 scientists 44–45 D-Index: 808 scientists 46–47 D-Index: 776 scientists 48–49 D-Index: 835 scientists 50–51 D-Index: 861 scientists 52–53 D-Index: 872 scientists 54–55 D-Index: 933 scientists 56–57 D-Index: 1,051 scientists 58–59 D-Index: 930 scientists 60–61 D-Index: 882 scientists 62–63 D-Index: 834 scientists 64–65 D-Index: 731 scientists 66–67 D-Index: 775 scientists 68–69 D-Index: 683 scientists 70–71 D-Index: 646 scientists 72–73 D-Index: 561 scientists 74–75 D-Index: 501 scientists 76–77 D-Index: 437 scientists 78–79 D-Index: 388 scientists 80–81 D-Index: 354 scientists 82–83 D-Index: 292 scientists 84–85 D-Index: 275 scientists 86–87 D-Index: 254 scientists 88–89 D-Index: 235 scientists 90–91 D-Index: 185 scientists 92–93 D-Index: 192 scientists 94–95 D-Index: 155 scientists 96–97 D-Index: 163 scientists 98–99 D-Index: 125 scientists 100–101 D-Index: 105 scientists 102–103 D-Index: 105 scientists 104–105 D-Index: 112 scientists 106–107 D-Index: 88 scientists 108–109 D-Index: 68 scientists 110–111 D-Index: 69 scientists 112–113 D-Index: 65 scientists 114–115 D-Index: 79 scientists 116–117 D-Index: 61 scientists 118–119 D-Index: 44 scientists 120–121 D-Index: 37 scientists 122–123 D-Index: 40 scientists 124–125 D-Index: 33 scientists 126–127 D-Index: 26 scientists 128–129 D-Index: 34 scientists 130–131 D-Index: 35 scientists 132–133 D-Index: 25 scientists 134–135 D-Index: 27 scientists 136–137 D-Index: 17 scientists 138–139 D-Index: 16 scientists 140–141 D-Index: 20 scientists 142–143 D-Index: 20 scientists 144–145 D-Index: 15 scientists 146–147 D-Index: 9 scientists 148–149 D-Index: 9 scientists 150–151 D-Index: 16 scientists 152–153 D-Index: 11 scientists 154–155 D-Index: 9 scientists 156–157 D-Index: 3 scientists 158 D-Index: 3 scientists 159+ D-Index: 98 scientists
40 D-Index 159+

This scientist: 58 D-Index — 42nd percentile

42% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 159 D-Index or more.

Overview

Kazuichi Hayakawa is affiliated with Kanazawa University in Japan. Their research primarily focuses on environmental science and earth and planetary sciences, with significant contributions in subfields such as health, toxicology and mutagenesis, atmospheric science, pollution, global and planetary change, and environmental engineering.

Their main topics of study include:

  • Air Quality and Health Impacts
  • Toxic Organic Pollutants Impact
  • Atmospheric chemistry and aerosols
  • Microplastics and Plastic Pollution
  • Indoor Air Quality and Microbial Exposure
  • Vehicle emissions and performance
  • Environmental Toxicology and Ecotoxicology

Hayakawa has published extensively in several venues, with frequent contributions in:

  • International Journal of Environmental Research and Public Health
  • Applied Sciences
  • Environmental Pollution
  • Atmosphere
  • Preprints.org

Some of their recent papers include:

  • "Exposure to Atmospheric Particulate Matter-Bound Polycyclic Aromatic Hydrocarbons and Their Health Effects: A Review" (2021, International Journal of Environmental Research and Public Health)
  • "Characteristics and Influencing Factors of Polycyclic Aromatic Hydrocarbons Emitted from Open Burning and Stove Burning of Biomass: A Brief Review" (2022, International Journal of Environmental Research and Public Health)
  • "Characteristics of PM2.5-Bound Polycyclic Aromatic Hydrocarbons and Nitro-Polycyclic Aromatic Hydrocarbons at A Roadside Air Pollution Monitoring Station in Kanazawa, Japan" (2020, International Journal of Environmental Research and Public Health)
  • "Yearly variation in characteristics and health risk of polycyclic aromatic hydrocarbons and nitro-PAHs in urban shanghai from 2010-2018" (2020, Journal of Environmental Sciences)
  • "Characteristics of Polycyclic Aromatic Hydrocarbons (PAHs) and Common Air Pollutants at Wajima, a Remote Background Site in Japan" (2020, International Journal of Environmental Research and Public Health)

Frequent co-authors in their work include Ning Tang, Akira Toriba, Lulu Zhang, Xuan Zhang, and Wanli Xing.

Best Publications

  • Polycyclic aromatic hydrocarbons and nitropolycyclic aromatic hydrocarbons in urban air particulates and their relationship to emission sources in the Pan–Japan Sea countries

    Ning Tang;Tetsuyuki Hattori;Rina Taga;Kazuhiko Igarashi

  • Photodegradation of 4-alkylphenols using BiVO4 photocatalyst under irradiation with visible light from a solar simulator

    Shigeru Kohtani;Masaya Koshiko;Akihiko Kudo;Kunihiro Tokumura

  • Induction of CYP1A1, CYP1A2, and CYP1B1 mRNAs by nitropolycyclic aromatic hydrocarbons in various human tissue-derived cells: chemical-, cytochrome P450 isoform-, and cell-specific differences

    Masashi Iwanari;Miki Nakajima;Ryoichi Kizu;Kazuichi Hayakawa

  • Polybrominated diphenyl ethers in human serum and sperm quality.

    Kazuhiko Akutsu;S. Takatori;S. Nozawa;M. Yoshiike

  • Exposure to Atmospheric Particulate Matter-Bound Polycyclic Aromatic Hydrocarbons and Their Health Effects: A Review

    Unknown

  • Determination of 1,3-, 1,6-, and 1,8-dinitropyrenes and 1-nitropyrene in urban air by high-performance liquid chromatography using chemiluminescence detection.

    Kazuichi. Hayakawa;Tsuyoshi. Murahashi;Mizuka. Butoh;Motoichi. Miyazaki

  • Photocatalytic Degradation of 4-n-Nonylphenol under Irradiation from Solar Simulator: Comparison between BiVO4 and TiO2 Photocatalysts.

    Shigeru Kohtani;Shigeki Makino;Akihiko Kudo;Kunihiro Tokumura

  • Simultaneous determination of urinary hydroxylated metabolites of naphthalene, fluorene, phenanthrene, fluoranthene and pyrene as multiple biomarkers of exposure to polycyclic aromatic hydrocarbons

    Thaneeya Chetiyanukornkul;Akira Toriba;Takayuki Kameda;Ning Tang

  • Bisphenol A (BPA) and its source in foods in Japanese markets.

    J Sajiki;F Miyamoto;H Fukata;C Mori

  • A role of aryl hydrocarbon receptor in the antiandrogenic effects of polycyclic aromatic hydrocarbons in LNCaP human prostate carcinoma cells.

    Ryoichi Kizu;Kazumasa Okamura;Akira Toriba;Hiroshi Kakishima

  • Long-range transport of polycyclic aromatic hydrocarbons from China to Japan

    Xiao-Yang Yang;Yumi Okada;Ning Tang;Siori Matsunaga

  • Components of diesel exhaust particles differentially affect Th1/Th2 response in a murine model of allergic airway inflammation.

    R. Yanagisawa;H. Takano;H. Takano;K.-i. Inoue;T. Ichinose

  • Size distribution of particulate polycyclic aromatic hydrocarbons in fresh combustion smoke and ambient air: A review.

    Lulu Zhang;Lu Yang;Quanyu Zhou;Xuan Zhang

  • Concentrations of bisphenol a, bisphenol a diglycidyl ether, and their derivatives in canned foods in Japanese markets.

    Jun Yonekubo;Kazuichi Hayakawa;Junko Sajiki

  • Estrogenic/Antiestrogenic Activities of Polycyclic Aromatic Hydrocarbons and Their Monohydroxylated Derivatives by Yeast Two-Hybrid Assay

    Kazuichi Hayakawa;Yu Onoda;Chihiro Tachikawa;Shinzo Hosoi

  • Development of analytical methods for polycyclic aromatic hydrocarbons (PAHs) in airborne particulates: a review.

    Li-bin Liu;Yan Liu;Jin-ming Lin;Ning Tang

  • Environmental Behaviors and Toxicities of Polycyclic Aromatic Hydrocarbons and Nitropolycyclic Aromatic Hydrocarbons.

    Kazuichi Hayakawa

  • Emission and atmospheric transport of particulate PAHs in Northeast Asia.

    Yayoi Inomata;Mizuo Kajino;Keiichi Sato;Toshimasa Ohara

  • Quantification of polycyclic aromatic hydrocarbons (PAHs) in human hair by HPLC with fluorescence detection: a biological monitoring method to evaluate the exposure to PAHs.

    Akira Toriba;Yayoi Kuramae;Thaneeya Chetiyanukornkul;Ryoichi Kizu

  • COMPARISON OF POLYCYCLIC AROMATIC HYDROCARBONS AND NITROPOLYCYCLIC AROMATIC HYDROCARBONS IN AIRBORNE PARTICULATES COLLECTED IN DOWNTOWN AND SUBURBAN KANAZAWA, JAPAN

    Kazuichi Hayakawa;Ning Tang;Kazuhiko Akutsu;Tsuyoshi Murahashi

  • Long-range transport of polycyclic aromatic hydrocarbons (PAHs) from the eastern Asian continent to Kanazawa, Japan with Asian dust

    Shuji Tamamura;Tsutomu Sato;Yukie Ota;Xilong Wang

Frequent Co-Authors

Jin-Ming Lin
Jin-Ming Lin Tsinghua University
Takashi Kondo
Takashi Kondo University of Toyama
Hiroyuki Nakazawa
Hiroyuki Nakazawa Hoshi University
Stephen B. Pointing
Stephen B. Pointing National University of Singapore
Vishwajit S. Chowdhury
Vishwajit S. Chowdhury Kyushu University
Xilong Wang
Xilong Wang Peking University
Carolyn M. Klinge
Carolyn M. Klinge University of Louisville
Toshimasa Ohara
Toshimasa Ohara Asia Center for Air Pollution Research
Hidetaka Takigami
Hidetaka Takigami National Institute for Environmental Studies
Min Hu
Min Hu Peking University

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