World's Best Scientists 2026 revealed!

D-Index & Metrics

Environmental Sciences

D-Index
61
Citations
18949
World Ranking
2713
National Ranking
210

Paul I. Williams 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 Paul I. Williams 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: 158 publications — 46th percentile

46% of scientists in this discipline score the same or lower.

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

Paul I. Williams 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 Paul I. Williams 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: 61 D-Index — 72nd percentile

72% of scientists in this discipline score the same or lower.

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

Overview

Paul I. Williams is affiliated with the University of Manchester in the United Kingdom. Their research primarily focuses on environmental and atmospheric sciences, with a specialization in studying aerosols, atmospheric chemistry, and air quality impacts.

The main fields of study covered in their work include:

  • Environmental Science
  • Earth and Planetary Sciences
  • Engineering

Their subfields of study reveal a focus on:

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

Paul I. Williams's research topics frequently address:

  • Atmospheric chemistry and aerosols
  • Air Quality and Health Impacts
  • Atmospheric aerosols and clouds
  • Vehicle emissions and performance
  • Advanced Aircraft Design and Technologies
  • Atmospheric and Environmental Gas Dynamics
  • Atmospheric Ozone and Climate

The scientist's recent published papers include:

  • Vertical variability of the properties of highly aged biomass burning aerosol transported over the southeast Atlantic during CLARIFY-2017, 2020, Atmospheric chemistry and physics
  • A European aerosol phenomenology - 7: High-time resolution chemical characteristics of submicron particulate matter across Europe, 2021, Atmospheric Environment X
  • Absorption closure in highly aged biomass burning smoke, 2020, Atmospheric chemistry and physics
  • Comparison of standardized sampling and measurement reference systems for aircraft engine non-volatile particulate matter emissions, 2020, Journal of Aerosol Science
  • Testing the near-field Gaussian plume inversion flux quantification technique using unmanned aerial vehicle sampling, 2020, Atmospheric measurement techniques

The frequent co-authors contributing alongside Paul I. Williams are:

  • Hugh Coe
  • J. D. Allan
  • Michael Flynn
  • Joseph Pitt
  • Grant Allen

The primary venues for their research publications encompass:

  • Atmospheric chemistry and physics
  • Journal of Aerosol Science
  • Aerosol Science and Technology
  • Zenodo (CERN European Organization for Nuclear Research)
  • Atmospheric Environment X

Best Publications

  • Evolution of Organic Aerosols in the Atmosphere

    J. L. Jimenez;M. R. Canagaratna;N. M. Donahue;A. S. H. Prevot

  • Ubiquity and dominance of oxygenated species in organic aerosols in anthropogenically-influenced Northern Hemisphere midlatitudes

    Q. Zhang;Jose L. Jimenez;M. R. Canagaratna;J. D. Allan

  • Mobility particle size spectrometers: harmonization of technical standards and data structure to facilitate high quality long-term observations of atmospheric particle number size distributions

    A. Wiedensohler;W. Birmili;A. Nowak;A. Sonntag

  • Quantitative sampling using an Aerodyne aerosol mass spectrometer 1. Techniques of data interpretation and error analysis

    James D. Allan;Jose L. Jimenez;Jose L. Jimenez;Paul I. Williams;M. Rami Alfarra

  • Chase Studies of Particulate Emissions from in-use New York City Vehicles

    Manjula R. Canagaratna;John T. Jayne;David A. Ghertner;Scott Herndon

  • Black-carbon absorption enhancement in the atmosphere determined by particle mixing state

    Dantong Liu;James Whitehead;M. Rami Alfarra;Ernesto Reyes-Villegas

  • Contributions from transport, solid fuel burning and cooking to primary organic aerosols in two UK cities

    J.D. Allan;P.I. Williams;W.T. Morgan;C.L. Martin

  • Closure study between chemical composition and hygroscopic growth of aerosol particles during TORCH2

    M. Gysel;M. Gysel;J. Crosier;D. O. Topping;J. D. Whitehead

  • Quantitative sampling using an Aerodyne aerosol mass spectrometer 2. Measurements of fine particulate chemical composition in two U.K. cities

    James D. Allan;M. Rami Alfarra;Keith N. Bower;Paul I. Williams

  • Aging of biomass burning aerosols over West Africa: Aircraft measurements of chemical composition, microphysical properties, and emission ratios

    Gerard Capes;Ben Johnson;G. McFiggans;P. I. Williams

  • Exploring the vertical profile of atmospheric organic aerosol: comparing 17 aircraft field campaigns with a global model

    C. L. Heald;H. Coe;J. L. Jimenez;R. J. Weber

  • Size distribution, mixing state and source apportionment of black carbon aerosol in London during wintertime

    Dantong Liu;James D. Allan;Dominique E. Young;Hugh Coe

  • Airborne measurements of the spatial distribution of aerosol chemical composition across Europe and evolution of the organic fraction

    W. T. Morgan;J. D. Allan;K. N. Bower;E. J. Highwood

  • Modelling molecular iodine emissions in a coastal marine environment: The link to new particle formation

    A. Saiz-Lopez;J. M. C. Plane;G. McFiggans;P. I. Williams

  • Particle sizing calibration with refractive index correction for light scattering optical particle counters and impacts upon PCASP and CDP data collected during the Fennec campaign

    P. D. Rosenberg;A. R. Dean;P. I. Williams;J. R. Dorsey

  • Observations of ice multiplication in a weakly convective cell embedded in supercooled mid-level stratus

    J. Crosier;K. N. Bower;T. W. Choularton;Christopher D. Westbrook

  • Atmospheric chemistry and physics in the atmosphere of a developed megacity (London): an overview of the REPARTEE experiment and its conclusions

    R. M. Harrison;R. M. Harrison;M. Dall'Osto;M. Dall'Osto;D. C. S. Beddows;A. J. Thorpe;A. J. Thorpe

  • South East Pacific atmospheric composition and variability sampled along 20° S during VOCALS-REx

    G. Allen;H. Coe;A. Clarke;C. Bretherton

  • Chemical composition of summertime aerosol in the Po Valley (Italy), northern Adriatic and Black Sea

    J. Crosier;J. D. Allan;H. Coe;K. N. Bower

  • Impact of halogen monoxide chemistry upon boundary layer OH and HO2 concentrations at a coastal site

    W. J. Bloss;J. D. Lee;G. P. Johnson;R. Sommariva

  • Understanding in situ ozone production in the summertime through radical observations and modelling studies during the Clean air for London project (ClearfLo)

    Lisa K. Whalley;Daniel Stone;Rachel Dunmore;Jacqueline Hamilton

  • Consistency between parameterisations of aerosol hygroscopicity and CCN activity during the RHaMBLe discovery cruise

    N. Good;N. Good;D. O. Topping;J. D. Allan;M. Flynn

  • Ubiquity and Dominance of Oxygenated Species in Organic Aerosols in

    Q. Zhang;J. L. Jimenez;H. Coe;I. Ulbrich

Frequent Co-Authors

Hugh Coe
Hugh Coe University of Manchester
James Allan
James Allan University of Manchester
Keith Bower
Keith Bower University of Manchester
Martin Gallagher
Martin Gallagher University of Manchester
Michael Flynn
Michael Flynn University of Manchester
Jonathan Crosier
Jonathan Crosier University of Manchester
Gordon McFiggans
Gordon McFiggans University of Manchester
Thomas Choularton
Thomas Choularton University of Manchester
Dantong Liu
Dantong Liu Zhejiang University
James Dorsey
James Dorsey University of Manchester

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