World's Best Scientists 2026 revealed!

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Chemistry 69 6110 5542 1860 1545 156 20437

Richard G. Zepp publications per year

The chart shows the history of publications by Richard G. Zepp between 1965 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Richard G. Zepp published across 61 years, from 1965 to 2025, averaging 3.4 papers a year. Output peaked at 10 publications in 2018. 4 of the 206 publications appeared in the last two years.

No. of publications
2 4 6 8 10
Bar chart. Horizontal axis: year, 1965 to 2025. Vertical axis: number of publications, 0 to 10. Peak 10 publications in 2018. 1965: 1 publication 1966: 0 publications 1967: 0 publications 1968: 0 publications 1969: 0 publications 1970: 2 publications 1971: 1 publication 1972: 6 publications 1973: 4 publications 1974: 1 publication 1975: 2 publications 1976: 4 publications 1977: 6 publications 1978: 4 publications 1979: 3 publications 1980: 1 publication 1981: 4 publications 1982: 2 publications 1983: 3 publications 1984: 2 publications 1985: 1 publication 1986: 1 publication 1987: 6 publications 1988: 5 publications 1989: 1 publication 1990: 2 publications 1991: 3 publications 1992: 3 publications 1993: 2 publications 1994: 3 publications 1995: 4 publications 1996: 2 publications 1997: 6 publications 1998: 5 publications 1999: 2 publications 2000: 4 publications 2001: 3 publications 2002: 7 publications 2003: 3 publications 2004: 7 publications 2005: 2 publications 2006: 2 publications 2007: 4 publications 2008: 2 publications 2009: 3 publications 2010: 4 publications 2011: 5 publications 2012: 4 publications 2013: 4 publications 2014: 9 publications 2015: 7 publications 2016: 3 publications 2017: 5 publications 2018: 10 publications 2019: 8 publications 2020: 4 publications 2021: 2 publications 2022: 3 publications 2023: 5 publications 2024: 2 publications 2025: 2 publications
1965 2025

206 publications in total across all disciplines

View publications per year as a table
Richard G. Zepp: publications per year, 1965 to 2025
Year Publications
1965 1
1966 0
1967 0
1968 0
1969 0
1970 2
1971 1
1972 6
1973 4
1974 1
1975 2
1976 4
1977 6
1978 4
1979 3
1980 1
1981 4
1982 2
1983 3
1984 2
1985 1
1986 1
1987 6
1988 5
1989 1
1990 2
1991 3
1992 3
1993 2
1994 3
1995 4
1996 2
1997 6
1998 5
1999 2
2000 4
2001 3
2002 7
2003 3
2004 7
2005 2
2006 2
2007 4
2008 2
2009 3
2010 4
2011 5
2012 4
2013 4
2014 9
2015 7
2016 3
2017 5
2018 10
2019 8
2020 4
2021 2
2022 3
2023 5
2024 2
2025 2
Total 206
Download as CSV

Richard G. Zepp 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 Richard G. Zepp sits on this spectrum.

No. of scientists
250 500 750 1,000 1,250
Bar chart with 63 bars. Horizontal axis: publications, 61–80 to 1,295+. Vertical axis: number of scientists, 0 to 1,350. Most scientists, 1,350, have 161–180 publications. The last bar groups every scientist with 1,295 publications or more. The highlighted bar, 141–160 publications, is where this scientist sits. 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
61–80 publications 1,295+

This scientist: 156 publications — 16th percentile

16% of scientists in this discipline score the same or lower.

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

View publications distribution as a table
Number of Chemistry scientists by publication count, Research.com 2026 ranking edition. Based on 17,934 ranked scientists.
Publications Scientists This scientist
61–80 66
81–100 302
101–120 623
121–140 918
141–160 1,218 156
161–180 1,350
181–200 1,344
201–220 1,281
221–240 1,216
241–260 1,100
261–280 979
281–300 939
301–320 764
321–340 643
341–360 628
361–380 522
381–400 459
401–420 397
421–440 327
441–460 270
461–480 265
481–500 252
501–520 201
521–540 185
541–560 148
561–580 148
581–600 132
601–620 114
621–640 104
641–660 91
661–680 92
681–700 73
701–720 57
721–740 54
741–760 67
761–780 45
781–800 46
801–820 39
821–840 32
841–860 36
861–880 29
881–900 26
901–920 24
921–940 14
941–960 23
961–980 28
981–1,000 15
1,001–1,020 29
1,021–1,040 12
1,041–1,060 19
1,061–1,080 12
1,081–1,100 6
1,101–1,120 8
1,121–1,140 12
1,141–1,160 5
1,161–1,180 6
1,181–1,200 14
1,201–1,220 7
1,221–1,240 2
1,241–1,260 6
1,261–1,280 4
1,281–1,294 6
1,295+ 100
Download as CSV

Richard G. Zepp 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 Richard G. Zepp sits on this spectrum.

No. of scientists
250 500 750 1,000
Bar chart with 61 bars. Horizontal axis: D-Index, 40–41 to 159+. Vertical axis: number of scientists, 0 to 1,051. Most scientists, 1,051, have 56–57 D-Index. The last bar groups every scientist with 159 D-Index or more. The highlighted bar, 68–69 D-Index, is where this scientist sits. 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
40–41 D-Index 159+

This scientist: 69 D-Index — 66th percentile

66% of scientists in this discipline score the same or lower.

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

View D-Index distribution as a table
Number of Chemistry scientists by D-index, Research.com 2026 ranking edition. Based on 17,934 ranked scientists.
D-Index Scientists This scientist
40–41 289
42–43 612
44–45 808
46–47 776
48–49 835
50–51 861
52–53 872
54–55 933
56–57 1,051
58–59 930
60–61 882
62–63 834
64–65 731
66–67 775
68–69 683 69
70–71 646
72–73 561
74–75 501
76–77 437
78–79 388
80–81 354
82–83 292
84–85 275
86–87 254
88–89 235
90–91 185
92–93 192
94–95 155
96–97 163
98–99 125
100–101 105
102–103 105
104–105 112
106–107 88
108–109 68
110–111 69
112–113 65
114–115 79
116–117 61
118–119 44
120–121 37
122–123 40
124–125 33
126–127 26
128–129 34
130–131 35
132–133 25
134–135 27
136–137 17
138–139 16
140–141 20
142–143 20
144–145 15
146–147 9
148–149 9
150–151 16
152–153 11
154–155 9
156–157 3
158 3
159+ 98
Download as CSV

Overview

Richard G. Zepp is affiliated with the Environmental Protection Agency in the United States. Their research primarily spans the domains of Environmental Science and Earth and Planetary Sciences, with notable contributions to the subfields of Health, Toxicology and Mutagenesis, Atmospheric Science, Pollution, Industrial and Manufacturing Engineering, and Global and Planetary Change.

Their work addresses several key topics including Microplastics and Plastic Pollution, Recycling and Waste Management Techniques, Atmospheric Ozone and Climate, Climate Change and Health Impacts, Air Quality and Health Impacts, Atmospheric Chemistry and Aerosols, and Climate Change and Geoengineering.

Frequent co-authors collaborating with Richard G. Zepp include Anthony L. Andrady, Paul W. Barnes, Janet F. Bornman, S. Madronich, and Marcel A. K. Jansen.

The main venues for their publications are Photochemical & Photobiological Sciences, Environmental Science Nano, Global Change Biology, Nature Nanotechnology, and The Science of The Total Environment.

Notable recent publications by Zepp include:

  • Nano-enabled pesticides for sustainable agriculture and global food security, 2022, Nature Nanotechnology
  • Oxidation and fragmentation of plastics in a changing environment; from UV-radiation to biological degradation, 2022, The Science of The Total Environment
  • Environmental effects of stratospheric ozone depletion, UV radiation, and interactions with climate change: UNEP Environmental Effects Assessment Panel, Update 2020, 2021, Photochemical & Photobiological Sciences
  • Environmental effects of stratospheric ozone depletion, UV radiation and interactions with climate change: UNEP Environmental Effects Assessment Panel, update 2019, 2020, Photochemical & Photobiological Sciences
  • Environmental effects of stratospheric ozone depletion, UV radiation, and interactions with climate change: UNEP Environmental Effects Assessment Panel, Update 2021, 2022, Photochemical & Photobiological Sciences

Best Publications

  • Hydroxyl radical formation in aqueous reactions (pH 3-8) of iron(II) with hydrogen peroxide : the photo-fenton reaction

    Richard G. Zepp;Bruce C. Faust;Juerg Hoigne

  • Role of photoreactions in the formation of biologically labile compounds from dissolved organic matter

    Mary Ann Moran;Richard G. Zepp

  • Carbon loss and optical property changes during long‐term photochemical and biological degradation of estuarine dissolved organic matter

    Mary Ann Moran;Wade M. Sheldon;Richard G. Zepp

  • Nitrate-induced photooxidation of trace organic chemicals in water.

    Richard G. Zepp;Juerg. Hoigne;Heinz. Bader

  • Photochemistry of aqueous iron(III)-polycarboxylate complexes : roles in the chemistry of atmospheric and surface waters

    Bruce C. Faust;Richard G. Zepp

  • Photosensitized transformations involving electronic energy transfer in natural waters: role of humic substances

    Richard G. Zepp;Patricia F. Schlotzhauer;R. Merritt. Sink

  • Dissolved organic fluorophores in southeastern US coastal waters: correction method for eliminating Rayleigh and Raman scattering peaks in excitation–emission matrices

    Richard G Zepp;Wade M Sheldon;Mary Ann Moran

  • Photochemical production of dissolved inorganic carbon from terrestrial organic matter: significance to the oceanic organic carbon cycle

    W. L. Miller;R. G. Zepp

  • Rates of direct photolysis in aquatic environment

    Unknown

  • Factors Influencing Photoreactions of Dissolved Organic Matter in a Coastal River of the Southeastern United States

    Huizhen Gao;Richard G. Zepp

  • Photochemical release of biologically available nitrogen from aquatic dissolved organic matter

    Karen L. Bushaw;Richard G. Zepp;Matthew A. Tarr;Daniel Schulz-Jander

  • Photochemistry of natural waters

    Oliver C. Zafiriou;Jacques Joussot-Dubien;Richard G. Zepp;Rod G. Zika

  • Release characteristics of selected carbon nanotube polymer composites

    Christopher Kingston;Richard Zepp;Anthony Andrady;Darrell Boverhof

  • Environmental effects of ozone depletion, UV radiation and interactions with climate change: UNEP Environmental Effects Assessment Panel, update 2017

    G. H. Bernhard;R. E. Neale;P. W. Barnes;P. J. Neale

  • Photoproduction of hydrated electrons from natural organic solutes in aquatic environments.

    Richard G. Zepp;Andre M. Braun;Juerg. Hoigne;Jerry A. Leenheer

  • Absorbance, absorption coefficient, and apparent quantum yield: A comment on common ambiguity in the use of these optical concepts

    Chuanmin Hu;Frank E. Muller-Karger;Richard G. Zepp

  • Interactive effects of solar UV radiation and climate change on biogeochemical cycling

    R. G. Zepp;D. J. Erickson;N. D. Paul;B. Sulzberger

  • Sunlight-mediated inactivation of health-relevant microorganisms in water: a review of mechanisms and modeling approaches

    Kara L. Nelson;Alexandria B. Boehm;Robert J. Davies-Colley;Michael C. Dodd

  • Reactive Oxygen Species in Natural Waters

    Neil V. Blough;Richard G. Zepp

  • Comparison of photochemical behavior of various humic substances in water: I. Sunlight induced reactions of aquatic pollutants photosensitized by humic substances

    Richard G. Zepp;George L. Baughman;Patricia F. Schlotzhauer

  • Potential release scenarios for carbon nanotubes used in composites

    Bernd Nowack;Raymond M. David;Heinz Fissan;Howard Morris

  • Reactivity of the carbonate radical with aniline derivatives

    Richard A. Larson;Richard G. Zepp

Frequent Co-Authors

Nigel D. Paul
Nigel D. Paul Lancaster University
William L. Miller
William L. Miller University of Georgia
Mary Ann Moran
Mary Ann Moran University of Georgia
David J. Erickson
David J. Erickson Oak Ridge National Laboratory
Carlos L. Ballaré
Carlos L. Ballaré University of Buenos Aires
Richard McKenzie
Richard McKenzie National Institute of Water and Atmospheric Research
Alkiviadis F. Bais
Alkiviadis F. Bais Aristotle University of Thessaloniki
Donat-P. Häder
Donat-P. Häder University of Erlangen-Nuremberg
Janet F. Bornman
Janet F. Bornman Curtin University
Mercedes M. C. Bustamante
Mercedes M. C. Bustamante University of Brasília

If you think any of the details on this page are incorrect, let us know.

Report an issue

We appreciate your kind effort to assist us to improve this page, it would be helpful providing us with as much detail as possible in the text box below:

Related Online Degrees & Career Pathways

Studying chemistry in the USA opens up diverse career opportunities, many of which can be enhanced through specialized online degrees. For those interested in healthcare, becoming a pharmacist is a rewarding path. To learn more about this profession, check out the guide on how to become a pharmacist, which outlines the education requirements and career outlook in this vital field.

If forensic sciences spark your interest, pursuing a career as a medical examiner assistant offers a unique blend of chemistry and investigative work. Discover the essential steps and qualifications needed in the article on how to become a medical examiner assistant.

For students seeking affordable options, many reputable schools offer flexible programs. Explore some of the best online colleges for forensic science to find programs that fit your budget and schedule. This resource highlights cost-effective paths to gain expertise in forensic applications of chemistry.

Additionally, advancing your education with an online master's in forensic psychology can complement a chemistry background by focusing on behavioral aspects related to crimes. This interdisciplinary approach broadens career prospects within forensic investigations and criminal justice.

Best Scientists Citing Richard G. Zepp

Trending Scientists

Recently Published Articles