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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Environmental Sciences 44 6821 6553 304 287 108 6709

Kevin E. Percy publications per year

The chart shows the history of publications by Kevin E. Percy between 1978 and 2024, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Kevin E. Percy published across 47 years, from 1978 to 2024, averaging 2.3 papers a year. Output peaked at 14 publications in 2003. 1 of the 109 publications appeared in the last two years.

No. of publications
5 10
Bar chart. Horizontal axis: year, 1978 to 2024. Vertical axis: number of publications, 0 to 14. Peak 14 publications in 2003. 1978: 1 publication 1979: 0 publications 1980: 0 publications 1981: 1 publication 1982: 0 publications 1983: 1 publication 1984: 1 publication 1985: 2 publications 1986: 2 publications 1987: 1 publication 1988: 1 publication 1989: 1 publication 1990: 2 publications 1991: 1 publication 1992: 1 publication 1993: 2 publications 1994: 5 publications 1995: 1 publication 1996: 3 publications 1997: 1 publication 1998: 4 publications 1999: 6 publications 2000: 1 publication 2001: 3 publications 2002: 3 publications 2003: 14 publications 2004: 2 publications 2005: 3 publications 2006: 1 publication 2007: 5 publications 2008: 3 publications 2009: 4 publications 2010: 6 publications 2011: 1 publication 2012: 7 publications 2013: 5 publications 2014: 0 publications 2015: 3 publications 2016: 4 publications 2017: 3 publications 2018: 1 publication 2019: 1 publication 2020: 1 publication 2021: 0 publications 2022: 0 publications 2023: 0 publications 2024: 1 publication
1978 2024

109 publications in total across all disciplines

View publications per year as a table
Kevin E. Percy: publications per year, 1978 to 2024
Year Publications
1978 1
1979 0
1980 0
1981 1
1982 0
1983 1
1984 1
1985 2
1986 2
1987 1
1988 1
1989 1
1990 2
1991 1
1992 1
1993 2
1994 5
1995 1
1996 3
1997 1
1998 4
1999 6
2000 1
2001 3
2002 3
2003 14
2004 2
2005 3
2006 1
2007 5
2008 3
2009 4
2010 6
2011 1
2012 7
2013 5
2014 0
2015 3
2016 4
2017 3
2018 1
2019 1
2020 1
2021 0
2022 0
2023 0
2024 1
Total 109
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Kevin E. Percy 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 Kevin E. Percy 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, 101–110 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: 108 publications — 17th percentile

17% 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
101–110 492 108
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
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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Kevin E. Percy 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 Kevin E. Percy 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, 44 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: 44 D-Index — 32nd percentile

32% 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 44
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
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

Kevin E. Percy is affiliated with K.E. Percy Air Quality Effects Consulting Ltd, based in Canada. Their research primarily focuses on environmental science and earth and planetary sciences, with key areas of study including atmospheric science, global and planetary change, health, toxicology and mutagenesis, plant science, and automotive engineering.

The scientist has contributed to several recent papers, which reflect a diverse range of topics within these fields. Some notable publications include:

  • Using tree cores to evaluate historic atmospheric concentrations and trends of polycyclic aromatic compounds in the Oil Sands region of Alberta, Canada, 2020, The Science of The Total Environment
  • Effects of elevated ozone on growth and foliar traits of European and hybrid aspen, 2024, Helda (University of Helsinki)
  • Long-term trends in British Columbia lower mainland air quality: Criteria air pollutants and VOC, 2024, Journal of the Air & Waste Management Association

In terms of research topics, the scientist's work covers atmospheric chemistry and aerosols, atmospheric and environmental gas dynamics, toxic organic pollutants impact, plant responses to elevated CO2, plant water relations and carbon dynamics, air quality and health impacts, and vehicle emissions and performance.

  • Atmospheric chemistry and aerosols
  • Atmospheric and Environmental Gas Dynamics
  • Toxic Organic Pollutants Impact
  • Plant responses to elevated CO2
  • Plant Water Relations and Carbon Dynamics
  • Air Quality and Health Impacts
  • Vehicle emissions and performance

Kevin E. Percy has collaborated with a number of other researchers across these projects. Frequent co-authors include Cassandra Rauert, Tom Harner, Jason M. E. Ahad, Suvi Nikula, and Elina Oksanen.

  • Cassandra Rauert
  • Tom Harner
  • Jason M. E. Ahad
  • Suvi Nikula
  • Elina Oksanen

Publications by Kevin E. Percy have appeared in several venues, with the most frequent being The Science of The Total Environment, Helda (University of Helsinki), and the Journal of the Air & Waste Management Association.

  • The Science of The Total Environment
  • Helda (University of Helsinki)
  • Journal of the Air & Waste Management Association

Best Publications

  • Altered performance of forest pests under atmospheres enriched by CO2 and O3.

    Kevin E. Percy;Caroline S. Awmack;Richard L. Lindroth;Mark E. Kubiske

  • Tropospheric O3 moderates responses of temperate hardwood forests to elevated CO2: a synthesis of molecular to ecosystem results from the Aspen FACE project

    D. F. Karnosky;D. R. Zak;K. S. Pregitzer;K. S. Pregitzer;C. S. Awmack

  • Scaling ozone responses of forest trees to the ecosystem level in a changing climate

    D. F. Karnosky;Kurt S. Pregitzer;Donald R. Zak;Mark E. Kubiske

  • Perspectives regarding 50 years of research on effects of tropospheric ozone air pollution on US forests

    David F. Karnosky;John M. Skelly;Kevin E. Percy;Art H. Chappelka

  • Impacts of air pollutants on vegetation in developing countries

    L.D. Emberson;M.R. Ashmore;F. Murray;J.C.I. Kuylenstierna

  • Growth responses of Populus tremuloides clones to interacting elevated carbon dioxide and tropospheric ozone

    J. G. Isebrands;E. P. McDonald;E. Kruger;G. Hendrey

  • Next generation of elevated [CO2] experiments with crops: a critical investment for feeding the future world

    Elizabeth A. Ainsworth;Claus Beier;Carlo Calfapietra;Reinhart Ceulemans

  • The influence of UV-B radiation on the physicochemical nature of tobacco (Nicotiana tabacum L.) leaf surfaces

    Jeremy D. Barnes;Kevin E. Percy;Nigel D. Paul;Pam Jones

  • Free-Air Exposure Systems to Scale up Ozone Research to Mature Trees

    D. F. Karnosky;H. Werner;T. Holopainen;K. Percy

  • Forest Health in North America: Some perspectives on Actual and Potential Roles of Climate and Air Pollution

    S. McLaughlin;K. Percy

  • Impacts of global change on diseases of agricultural crops and forest trees

    Sukumar Chakraborty;Jo Luck;Grant Hollaway;Angela Freeman

  • Future atmospheric CO2 leads to delayed autumnal senescence

    Gail Taylor;Matthew J. Tallis;Christian P. Giardina;Kevin E. Percy

  • Interacting elevated CO2 and tropospheric O3 predisposes aspen (Populus tremuloides Michx.) to infection by rust (Melampsora medusae f. sp. tremuloidae)

    D. F. Karnosky;Kevin E. Percy;Bixia Xiang;Brenda Callan

  • Effects of Tropospheric O3 on Trembling Aspen and Interaction with CO2: Results from an O3-Gradient and a Face Experiment

    D.F. Karnosky;B. Mankovska;K. Percy;R.E. Dickson

  • Air pollution and forest health: toward new monitoring concepts.

    K.E Percy;M Ferretti

  • Air Pollutants and the Leaf Cuticle

    Kevin E. Percy

  • Source apportionment of ambient fine and coarse particulate matter at the Fort McKay community site, in the Athabasca Oil Sands Region, Alberta, Canada.

    Matthew S. Landis;J. Patrick Pancras;Joseph R. Graney;Emily M. White

  • Advances in understanding ozone impact on forest trees: Messages from novel phytotron and free-air fumigation studies

    R. Matyssek;D.F. Karnosky;G. Wieser;K. Percy

  • Responses to ultraviolet-B radiation (280-315 nm) of pea (Pisum sativum) lines differing in leaf surface wax

    R. Gonzalez;N. D. Paul;K. Percy;M. Ambrose

  • EFFECTS OF SO2 AND OTHER AIR POLLUTANTS ON THE MORPHOLOGY OF EPICUTICULAR WAXES ON NEEDLES OF PINUS STROBUS AND PINUS BANKSIANA

    R. T. Riding;K. E. Percy

Frequent Co-Authors

David F. Karnosky
David F. Karnosky Michigan Technological University
J. G. Isebrands
J. G. Isebrands US Forest Service
George R. Hendrey
George R. Hendrey City University of New York
John G. Watson
John G. Watson Desert Research Institute
Judith C. Chow
Judith C. Chow Desert Research Institute
Kurt S. Pregitzer
Kurt S. Pregitzer University of Idaho
Mark E. Kubiske
Mark E. Kubiske US Forest Service
Rainer Matyssek
Rainer Matyssek Technical University of Munich
Andrzej Bytnerowicz
Andrzej Bytnerowicz US Forest Service
Elina Oksanen
Elina Oksanen University of Eastern Finland

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