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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Chemistry 58 10802 9754 790 725 216 10118
Environmental Sciences 58 3327 3182 49 47 232 10170

Shigeki Masunaga publications per year

The chart shows the history of publications by Shigeki Masunaga between 1981 and 2024, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Shigeki Masunaga published across 44 years, from 1981 to 2024, averaging 5.4 papers a year. Output peaked at 21 publications in 2002. 3 of the 239 publications appeared in the last two years.

No. of publications
5 10 15 20
Bar chart. Horizontal axis: year, 1981 to 2024. Vertical axis: number of publications, 0 to 21. Peak 21 publications in 2002. 1981: 1 publication 1982: 0 publications 1983: 1 publication 1984: 0 publications 1985: 0 publications 1986: 1 publication 1987: 0 publications 1988: 1 publication 1989: 1 publication 1990: 0 publications 1991: 2 publications 1992: 0 publications 1993: 2 publications 1994: 3 publications 1995: 3 publications 1996: 8 publications 1997: 7 publications 1998: 2 publications 1999: 1 publication 2000: 9 publications 2001: 12 publications 2002: 21 publications 2003: 17 publications 2004: 11 publications 2005: 6 publications 2006: 7 publications 2007: 10 publications 2008: 5 publications 2009: 12 publications 2010: 9 publications 2011: 8 publications 2012: 9 publications 2013: 4 publications 2014: 13 publications 2015: 9 publications 2016: 10 publications 2017: 8 publications 2018: 7 publications 2019: 7 publications 2020: 4 publications 2021: 2 publications 2022: 3 publications 2023: 1 publication 2024: 2 publications
1981 2024

239 publications in total across all disciplines

View publications per year as a table
Shigeki Masunaga: publications per year, 1981 to 2024
Year Publications
1981 1
1982 0
1983 1
1984 0
1985 0
1986 1
1987 0
1988 1
1989 1
1990 0
1991 2
1992 0
1993 2
1994 3
1995 3
1996 8
1997 7
1998 2
1999 1
2000 9
2001 12
2002 21
2003 17
2004 11
2005 6
2006 7
2007 10
2008 5
2009 12
2010 9
2011 8
2012 9
2013 4
2014 13
2015 9
2016 10
2017 8
2018 7
2019 7
2020 4
2021 2
2022 3
2023 1
2024 2
Total 239
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Shigeki Masunaga publication distribution in Environmental Sciences in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Environmental Sciences in 2026. The highlighted bar marks where Shigeki Masunaga sits on this spectrum.

No. of scientists
200 400 600
Bar chart with 66 bars. Horizontal axis: publications, 41–50 to 690+. Vertical axis: number of scientists, 0 to 617. Most scientists, 617, have 121–130 publications. The last bar groups every scientist with 690 publications or more. The highlighted bar, 231–240 publications, is where this scientist sits. 41–50 publications: 21 scientists 51–60 publications: 62 scientists 61–70 publications: 133 scientists 71–80 publications: 257 scientists 81–90 publications: 361 scientists 91–100 publications: 440 scientists 101–110 publications: 492 scientists 111–120 publications: 541 scientists 121–130 publications: 617 scientists 131–140 publications: 544 scientists 141–150 publications: 541 scientists 151–160 publications: 539 scientists 161–170 publications: 444 scientists 171–180 publications: 444 scientists 181–190 publications: 400 scientists 191–200 publications: 377 scientists 201–210 publications: 318 scientists 211–220 publications: 282 scientists 221–230 publications: 263 scientists 231–240 publications: 220 scientists 241–250 publications: 217 scientists 251–260 publications: 180 scientists 261–270 publications: 181 scientists 271–280 publications: 155 scientists 281–290 publications: 130 scientists 291–300 publications: 127 scientists 301–310 publications: 130 scientists 311–320 publications: 85 scientists 321–330 publications: 106 scientists 331–340 publications: 80 scientists 341–350 publications: 83 scientists 351–360 publications: 75 scientists 361–370 publications: 69 scientists 371–380 publications: 52 scientists 381–390 publications: 54 scientists 391–400 publications: 56 scientists 401–410 publications: 44 scientists 411–420 publications: 40 scientists 421–430 publications: 36 scientists 431–440 publications: 25 scientists 441–450 publications: 25 scientists 451–460 publications: 32 scientists 461–470 publications: 29 scientists 471–480 publications: 21 scientists 481–490 publications: 26 scientists 491–500 publications: 26 scientists 501–510 publications: 17 scientists 511–520 publications: 19 scientists 521–530 publications: 15 scientists 531–540 publications: 22 scientists 541–550 publications: 12 scientists 551–560 publications: 15 scientists 561–570 publications: 11 scientists 571–580 publications: 19 scientists 581–590 publications: 9 scientists 591–600 publications: 9 scientists 601–610 publications: 7 scientists 611–620 publications: 11 scientists 621–630 publications: 5 scientists 631–640 publications: 5 scientists 641–650 publications: 6 scientists 651–660 publications: 3 scientists 661–670 publications: 3 scientists 671–680 publications: 4 scientists 681–689 publications: 4 scientists 690+ publications: 100 scientists
41–50 publications 690+

This scientist: 232 publications — 74th percentile

74% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 690 publications or more.

View publications distribution as a table
Number of Environmental Sciences scientists by publication count, Research.com 2026 ranking edition. Based on 9,676 ranked scientists.
Publications Scientists This scientist
41–50 21
51–60 62
61–70 133
71–80 257
81–90 361
91–100 440
101–110 492
111–120 541
121–130 617
131–140 544
141–150 541
151–160 539
161–170 444
171–180 444
181–190 400
191–200 377
201–210 318
211–220 282
221–230 263
231–240 220 232
241–250 217
251–260 180
261–270 181
271–280 155
281–290 130
291–300 127
301–310 130
311–320 85
321–330 106
331–340 80
341–350 83
351–360 75
361–370 69
371–380 52
381–390 54
391–400 56
401–410 44
411–420 40
421–430 36
431–440 25
441–450 25
451–460 32
461–470 29
471–480 21
481–490 26
491–500 26
501–510 17
511–520 19
521–530 15
531–540 22
541–550 12
551–560 15
561–570 11
571–580 19
581–590 9
591–600 9
601–610 7
611–620 11
621–630 5
631–640 5
641–650 6
651–660 3
661–670 3
671–680 4
681–689 4
690+ 100
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Shigeki Masunaga D-index placement in Environmental Sciences in 2026

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

No. of scientists
100 200 300
Bar chart with 97 bars. Horizontal axis: D-Index, 30 to 126+. Vertical axis: number of scientists, 0 to 348. Most scientists, 348, have 45 D-Index. The last bar groups every scientist with 126 D-Index or more. The highlighted bar, 58 D-Index, is where this scientist sits. 30 D-Index: 12 scientists 31 D-Index: 26 scientists 32 D-Index: 51 scientists 33 D-Index: 88 scientists 34 D-Index: 123 scientists 35 D-Index: 163 scientists 36 D-Index: 206 scientists 37 D-Index: 267 scientists 38 D-Index: 265 scientists 39 D-Index: 275 scientists 40 D-Index: 321 scientists 41 D-Index: 343 scientists 42 D-Index: 305 scientists 43 D-Index: 336 scientists 44 D-Index: 330 scientists 45 D-Index: 348 scientists 46 D-Index: 291 scientists 47 D-Index: 275 scientists 48 D-Index: 272 scientists 49 D-Index: 273 scientists 50 D-Index: 263 scientists 51 D-Index: 232 scientists 52 D-Index: 266 scientists 53 D-Index: 217 scientists 54 D-Index: 198 scientists 55 D-Index: 177 scientists 56 D-Index: 202 scientists 57 D-Index: 204 scientists 58 D-Index: 166 scientists 59 D-Index: 177 scientists 60 D-Index: 166 scientists 61 D-Index: 152 scientists 62 D-Index: 143 scientists 63 D-Index: 150 scientists 64 D-Index: 124 scientists 65 D-Index: 119 scientists 66 D-Index: 120 scientists 67 D-Index: 118 scientists 68 D-Index: 82 scientists 69 D-Index: 98 scientists 70 D-Index: 94 scientists 71 D-Index: 105 scientists 72 D-Index: 74 scientists 73 D-Index: 84 scientists 74 D-Index: 70 scientists 75 D-Index: 67 scientists 76 D-Index: 78 scientists 77 D-Index: 60 scientists 78 D-Index: 59 scientists 79 D-Index: 52 scientists 80 D-Index: 47 scientists 81 D-Index: 38 scientists 82 D-Index: 48 scientists 83 D-Index: 42 scientists 84 D-Index: 42 scientists 85 D-Index: 43 scientists 86 D-Index: 29 scientists 87 D-Index: 37 scientists 88 D-Index: 29 scientists 89 D-Index: 30 scientists 90 D-Index: 34 scientists 91 D-Index: 20 scientists 92 D-Index: 22 scientists 93 D-Index: 17 scientists 94 D-Index: 19 scientists 95 D-Index: 24 scientists 96 D-Index: 21 scientists 97 D-Index: 20 scientists 98 D-Index: 24 scientists 99 D-Index: 17 scientists 100 D-Index: 17 scientists 101 D-Index: 21 scientists 102 D-Index: 25 scientists 103 D-Index: 18 scientists 104 D-Index: 26 scientists 105 D-Index: 20 scientists 106 D-Index: 15 scientists 107 D-Index: 10 scientists 108 D-Index: 13 scientists 109 D-Index: 15 scientists 110 D-Index: 12 scientists 111 D-Index: 8 scientists 112 D-Index: 7 scientists 113 D-Index: 9 scientists 114 D-Index: 6 scientists 115 D-Index: 12 scientists 116 D-Index: 7 scientists 117 D-Index: 8 scientists 118 D-Index: 3 scientists 119 D-Index: 5 scientists 120 D-Index: 7 scientists 121 D-Index: 2 scientists 122 D-Index: 4 scientists 123 D-Index: 8 scientists 124 D-Index: 7 scientists 125 D-Index: 9 scientists 126+ D-Index: 92 scientists
30 D-Index 126+

This scientist: 58 D-Index — 67th percentile

67% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 126 D-Index or more.

View D-Index distribution as a table
Number of Environmental Sciences scientists by D-index, Research.com 2026 ranking edition. Based on 9,676 ranked scientists.
D-Index Scientists This scientist
30 12
31 26
32 51
33 88
34 123
35 163
36 206
37 267
38 265
39 275
40 321
41 343
42 305
43 336
44 330
45 348
46 291
47 275
48 272
49 273
50 263
51 232
52 266
53 217
54 198
55 177
56 202
57 204
58 166 58
59 177
60 166
61 152
62 143
63 150
64 124
65 119
66 120
67 118
68 82
69 98
70 94
71 105
72 74
73 84
74 70
75 67
76 78
77 60
78 59
79 52
80 47
81 38
82 48
83 42
84 42
85 43
86 29
87 37
88 29
89 30
90 34
91 20
92 22
93 17
94 19
95 24
96 21
97 20
98 24
99 17
100 17
101 21
102 25
103 18
104 26
105 20
106 15
107 10
108 13
109 15
110 12
111 8
112 7
113 9
114 6
115 12
116 7
117 8
118 3
119 5
120 7
121 2
122 4
123 8
124 7
125 9
126+ 92
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Overview

Shigeki Masunaga is affiliated with Yokohama National University in Japan and focuses primarily on environmental science. Their research spans multiple subfields, notably health, toxicology and mutagenesis, pollution, immunology, molecular medicine, and aspects of management, monitoring, policy, and law.

The scientist's work contributes extensively to understanding environmental toxicology and ecotoxicology, with specific attention to the presence and effects of heavy metals in the environment. Other main topics covered in their research include mercury impact and mitigation studies, toxic organic pollutants impact, pharmaceutical and antibiotic environmental impacts, aquaculture disease management and microbiota, and antibiotic resistance in bacteria.

Shigeki Masunaga has published in several scientific venues, with multiple articles appearing in Environmental Monitoring and Assessment. Other frequent publication venues include Environmental Science and Pollution Research, The Science of The Total Environment, Journal of Applied Toxicology, and Water Air & Soil Pollution.

Recent papers by Masunaga include:

  • Antibiotics, antibiotic-resistant bacteria, and resistance genes in aquaculture: risks, current concern, and future thinking, 2022, Environmental Science and Pollution Research
  • Does a sum of toxic units exceeding 1 imply adverse impacts on macroinvertebrate assemblages? A field study in a northern Japanese river receiving treated mine discharge, 2020, Environmental Monitoring and Assessment
  • Chronic toxicity of 50 metals to Ceriodaphnia dubia, 2020, Journal of Applied Toxicology
  • Assessment of Metal Levels in Sediments and Oyster (Crassostrea gigas) Tissues from Shidugawa Bay, a Closed Japanese Aquaculture Environment, 2020, Water Air & Soil Pollution
  • Vertical profiles of legacy organochlorine pesticides in sediment cores from lake Nakaumi, Japan, 2021, Chemosphere

Masunaga has collaborated with several co-authors, including Shuping Han, Wataru Naito, Anwar Hossain, Mohammad Raknuzzaman, and Bommanna G. Loganathan. These frequent collaborators reflect overlapping interests in environmental toxicology, pollution, and related ecological impact studies.

Best Publications

  • Dioxin- and POP-contaminated sites—contemporary and future relevance and challenges

    Roland Weber;Caroline Gaus;Mats Tysklind;Paul Johnston

  • Dioxin and dioxin-like PCB impurities in some Japanese agrochemical formulations.

    Shigeki Masunaga;Takumi Takasuga;Junko Nakanishi

  • Concentrations of perfluorinated acids in livers of birds from Japan and Korea.

    Kurunthachalam Kannan;Jae-Won Choi;Naomasa Iseki;Kurunthachalam Senthilkumar

  • Potential ecological risk of hazardous elements in different land-use urban soils of Bangladesh.

    Saiful Islam;Saiful Islam;Kawser Ahmed;Habibullah-Al-Mamun;Habibullah-Al-Mamun;Shigeki Masunaga

  • Antibiotics, antibiotic-resistant bacteria, and resistance genes in aquaculture: risks, current concern, and future thinking

    Unknown

  • Characterization of PM2.5, PM2.5-10 and PM>10 in ambient air, Yokohama, Japan

    Md. Firoz Khan;Yuichiro Shirasuna;Koichiro Hirano;Shigeki Masunaga

  • Assessment of Trace Metal Contamination in Water and Sediment of Some Rivers in Bangladesh

    Saiful Islam;Saiful Islam;Shuping Han;Kawser Ahmed;Shigeki Masunaga

  • Ambient levels of volatile organic compounds in the vicinity of petrochemical industrial area of Yokohama, Japan

    Vasu Tiwari;Yoshimichi Hanai;Shigeki Masunaga

  • Detailed PCB congener patterns in incinerator flue gas and commercial PCB formulations (Kanechlor).

    Kyoung Soo Kim;Yusuke Hirai;Mika Kato;Kouhei Urano

  • Trace metal contamination in commercial fish and crustaceans collected from coastal area of Bangladesh and health risk assessment

    Mohammad Raknuzzaman;Kawser Ahmed;Saiful Islam;Habibullah-Al-Mamun

  • Occurrence and ecological risk of pharmaceuticals in river surface water of Bangladesh

    Anwar Hossain;Anwar Hossain;Shihori Nakamichi;Md. Habibullah-Al-Mamun;Md. Habibullah-Al-Mamun;Keiichiro Tani

  • Contribution of known endocrine disrupting substances to the estrogenic activity in Tama River water samples from Japan using instrumental analysis and in vitro reporter gene assay

    Takuma Furuichi;Kurunthachalam Kannan;John P. Giesy;Shigeki Masunaga

  • Polychlorinated naphthalenes, biphenyls, dibenzo-p-dioxins, and dibenzofurans as well as polycyclic aromatic hydrocarbons and alkylphenols in sediment from the Detroit and Rouge Rivers, Michigan, USA

    Kurunthachalam Kannan;Jamie L. E. E. Kober;Youn-Seok Kang;Shigeki Masunaga

  • Passive air monitoring of PCBs and PCNs across East Asia: A comprehensive congener evaluation for source characterization

    Jonathan Nartey Hogarh;Nobuyasu Seike;Yuso Kobara;Ahsan Habib

  • Trace metals in soil and vegetables and associated health risk assessment.

    Saiful Islam;Saiful Islam;Kawser Ahmed;Habibullah-Al-Mamun;Habibullah-Al-Mamun;Shigeki Masunaga

  • Existence of nonpoint source of perfluorinated compounds and their loads in the Tsurumi River basin, Japan

    Yasuyuki Zushi;Tomoharu Takeda;Shigeki Masunaga

  • Progress and perspective of perfluorinated compound risk assessment and management in various countries and institutes

    Yasuyuki Zushi;Jonathan Nartey Hogarh;Shigeki Masunaga

  • Metal speciation in sediment and their bioaccumulation in fish species of three urban rivers in Bangladesh

    Saiful Islam;Saiful Islam;Kawser Ahmed;Mohammad Raknuzzaman;Mohammad Raknuzzaman;Habibullah-Al-Mamun;Habibullah-Al-Mamun

  • Identifying sources and mass balance of dioxin pollution in Lake Shinji Basin, Japan.

    Shigeki Masunaga;Yuan Yao;Isamu Ogura;Satoshi Nakai

  • Atmospheric polycyclic aromatic hydrocarbons: size distribution, estimation of their risk and their depositions to the human respiratory tract.

    Yutaka Kameda;Junko Shirai;Takeshi Komai;Junko Nakanishi

  • Quantitative Identification of Unknown Exposure Pathways of Phthalates Based on Measuring Their Metabolites in Human Urine

    Hiroaki Itoh;Kikuo Yoshida;Shigeki Masunaga

Frequent Co-Authors

Kurunthachalam Kannan
Kurunthachalam Kannan University at Albany, State University of New York
John P. Giesy
John P. Giesy University of Saskatchewan
Md. Saiful Islam
Md. Saiful Islam Patuakhali Science and Technology University
Ivan Holoubek
Ivan Holoubek Masaryk University
Nobuyoshi Yamashita
Nobuyoshi Yamashita National Institute of Advanced Industrial Science and Technology
Jiti Zhou
Jiti Zhou Dalian University of Technology
Hideshige Takada
Hideshige Takada Tokyo University of Agriculture and Technology
Klára Hilscherová
Klára Hilscherová Masaryk University
Jong Seong Khim
Jong Seong Khim Seoul National University
Masatoshi Morita
Masatoshi Morita United Nations University

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