World's Best Scientists 2026 revealed!

D-Index & Metrics

Environmental Sciences

D-Index
79
Citations
26655
World Ranking
1001
National Ranking
80

C. N. Hewitt 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 C. N. Hewitt sits on this spectrum.

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: 283 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: 25 scientists 501–510 publications: 17 scientists 511–520 publications: 18 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 681–686 publications: 3 scientists 687+ publications: 100 scientists
41 publications 687+

This scientist: 308 publications — 87th percentile

87% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 687 publications or more.

C. N. Hewitt 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 C. N. Hewitt sits on this spectrum.

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: 199 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: 19 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: 99 scientists
30 D-Index 125+

This scientist: 79 D-Index — 90th percentile

90% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 125 D-Index or more.

Overview

C. N. Hewitt is affiliated with Lancaster University in the United Kingdom. Their research primarily focuses on environmental science and earth and planetary sciences, with a particular emphasis on atmospheric chemistry and aerosols, air quality and health impacts, and related fields.

Their main fields of study include:

  • Environmental Science
  • Earth and Planetary Sciences

Within these broader subjects, Hewitt's work explores several subfields such as atmospheric science, health, toxicology and mutagenesis, environmental engineering, automotive engineering, and global and planetary change.

  • Atmospheric Science
  • Health, Toxicology and Mutagenesis
  • Environmental Engineering
  • Automotive Engineering
  • Global and Planetary Change

The scientist's research topics cover a range of issues centered on atmospheric conditions and pollutant effects. These include atmospheric chemistry and aerosols, air quality monitoring and forecasting, atmospheric ozone and climate, vehicle emissions and performance, toxic organic pollutants impact, and energy and environment impacts.

  • Atmospheric chemistry and aerosols
  • Air Quality and Health Impacts
  • Air Quality Monitoring and Forecasting
  • Atmospheric Ozone and Climate
  • Vehicle emissions and performance
  • Toxic Organic Pollutants Impact
  • Energy and Environment Impacts

Hewitt has published extensively in scientific journals, contributing to venues such as:

  • Atmospheric chemistry and physics
  • Faraday Discussions
  • Environmental Science Atmospheres
  • Atmospheric Environment X
  • Environmental Science & Technology Letters

Among their recent papers are:

  • Evaluating the sensitivity of radical chemistry and ozone formation to ambient VOCs and NO x in Beijing, 2021, Atmospheric chemistry and physics
  • Elevated levels of OH observed in haze events during wintertime in central Beijing, 2020, Atmospheric chemistry and physics
  • In situ ozone production is highly sensitive to volatile organic compounds in Delhi, India, 2021, Atmospheric chemistry and physics
  • Avoiding high ozone pollution in Delhi, India, 2020, Faraday Discussions
  • Low-NO atmospheric oxidation pathways in a polluted megacity, 2021, Atmospheric chemistry and physics

Hewitt has collaborated frequently with several researchers in the field, including James Lee, W. Joe F. Acton, Jacqueline F. Hamilton, James R. Hopkins, and Eiko Nemitz.

Best Publications

  • A global model of natural volatile organic compound emissions

    Alex Guenther;C. Nicholas Hewitt;David Erickson;Ray Fall

  • Emissions of volatile organic compounds from vegetation and the implications for atmospheric chemistry

    Fred Fehsenfeld;Jack Calvert;Ray Fall;Paul Goldan

  • Effectiveness of Green Infrastructure for Improvement of Air Quality in Urban Street Canyons

    Thomas A. M. Pugh;A. Robert MacKenzie;J. Duncan Whyatt;C. Nicholas Hewitt

  • Biogenic volatile organic compounds in the Earth system

    Jullada Laothawornkitkul;Jane E. Taylor;Nigel D. Paul;C. Nicholas Hewitt

  • Inventorying emissions from nature in Europe

    David Simpson;Wilfried Winiwarter;Gunnar Börjesson;Steve Cinderby

  • Quantifying the effect of urban tree planting on concentrations and depositions of PM10 in two UK conurbations

    A.G. McDonald;W.J. Bealey;D. Fowler;U. Dragosits

  • Biogenic emissions in Europe: 1. Estimates and uncertainties

    David Simpson;Alex Guenther;C. Nicholas Hewitt;Rainer Steinbrecher

  • The relative greenhouse gas impacts of realistic dietary choices

    Mike Berners-Lee;C. Hoolohan;H. Cammack;C. N. Hewitt

  • Relative contribution of oxygenated hydrocarbons to the total biogenic VOC emissions of selected mid-European agricultural and natural plant species

    Georg König;Monika Brunda;Hans Puxbaum;C.Nicholas Hewitt

  • The effect of trade between China and the UK on national and global carbon dioxide emissions

    You Li;C.N. Hewitt

  • Current global food production is sufficient to meet human nutritional needs in 2050 provided there is radical societal adaptation

    Mike Berners-Lee;Cara Kennelly;Rosie Watson;C N Hewitt

  • Forests and Their Canopies: Achievements and Horizons in Canopy Science.

    Akihiro Nakamura;Roger L. Kitching;Min Cao;Thomas J. Creedy;Thomas J. Creedy

  • The application of proton transfer reaction-mass spectrometry (PTR-MS) to the monitoring and analysis of volatile organic compounds in the atmosphere

    C. N. Hewitt;S. Hayward;A. Tani

  • Using green infrastructure to improve urban air quality (GI4AQ)

    C. Nick Hewitt;Kirsti Ashworth;A. Rob MacKenzie

  • Measurement of monoterpenes and related compounds by proton transfer reaction-mass spectrometry (PTR-MS)

    Akira Tani;Akira Tani;S. Hayward;CN Hewitt

  • Screening of 18 Mediterranean plant species for volatile organic compound emissions

    S. Owen;C. Boissard;R.A. Street;S.C. Duckham

  • A dedicated study of new particle formation and fate in the coastal environment (PARFORCE): overview of objectives and achievements

    Colin D. O'Dowd;Colin D. O'Dowd;Kaarle Hämeri;Kaarle Hämeri;Jyrki M. Mäkelä;Jyrki M. Mäkelä;Liisa Pirjola

  • Mitigating the greenhouse gas emissions embodied in food through realistic consumer choices

    C. Hoolohan;M. Berners-Lee;J. McKinstry-West;C.N. Hewitt

  • Volatile organic compounds (VOCs) emitted from 40 Mediterranean plant species : VOC speciation and extrapolation to habitat scale

    Susan Margaret Owen;Christophe Boissard;C.Nicholas Hewitt

  • Hydroperoxides in plants exposed to ozone mediate air pollution damage to alkene emitters.

    Hewitt Cn;Hewitt Cn;Kok Gl;Fall R

  • Global terrestrial isoprene emission models: Sensitivity to variability in climate and vegetation

    Almut Arneth;Almut Arneth;Guy Schurgers;J. Lathiere;T. Duhl

  • Photosynthesis-dependent isoprene emission from leaf to planet in a global carbon-chemistry-climate model

    N. Unger;K. Harper;Y. Zheng;N. Y. Kiang

Frequent Co-Authors

Eiko Nemitz
Eiko Nemitz UK Centre for Ecology & Hydrology
Pawel K. Misztal
Pawel K. Misztal University of California, Berkeley
Roy M. Harrison
Roy M. Harrison University of Birmingham
Thomas A. M. Pugh
Thomas A. M. Pugh University of Birmingham
Alex Guenther
Alex Guenther University of California, Irvine
James D. Lee
James D. Lee University of York
John A. Pyle
John A. Pyle University of Cambridge
Keith Smith
Keith Smith University of Edinburgh
Gordon McFiggans
Gordon McFiggans University of Manchester
John Grace
John Grace University of Edinburgh

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