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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 57 3483 3330 268 259 260 11000

David Topping publications per year

The chart shows the history of publications by David Topping between 1993 and 2026, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. David Topping published across 34 years, from 1993 to 2026, averaging 10.3 papers a year. Output peaked at 29 publications in 2025. 32 of the 350 publications appeared in the last two years.

No. of publications
5 10 15 20 25
Bar chart. Horizontal axis: year, 1993 to 2026. Vertical axis: number of publications, 0 to 29. Peak 29 publications in 2025. 1993: 1 publication 1994: 0 publications 1995: 0 publications 1996: 0 publications 1997: 0 publications 1998: 1 publication 1999: 0 publications 2000: 2 publications 2001: 1 publication 2002: 2 publications 2003: 5 publications 2004: 9 publications 2005: 16 publications 2006: 2 publications 2007: 11 publications 2008: 8 publications 2009: 13 publications 2010: 19 publications 2011: 19 publications 2012: 8 publications 2013: 10 publications 2014: 9 publications 2015: 12 publications 2016: 25 publications 2017: 26 publications 2018: 20 publications 2019: 21 publications 2020: 21 publications 2021: 12 publications 2022: 22 publications 2023: 11 publications 2024: 12 publications 2025: 29 publications 2026: 3 publications
1993 2026

350 publications in total across all disciplines

View publications per year as a table
David Topping: publications per year, 1993 to 2026
Year Publications
1993 1
1994 0
1995 0
1996 0
1997 0
1998 1
1999 0
2000 2
2001 1
2002 2
2003 5
2004 9
2005 16
2006 2
2007 11
2008 8
2009 13
2010 19
2011 19
2012 8
2013 10
2014 9
2015 12
2016 25
2017 26
2018 20
2019 21
2020 21
2021 12
2022 22
2023 11
2024 12
2025 29
2026 3
Total 350
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David Topping 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 David Topping 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, 251–260 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: 260 publications — 80th percentile

80% 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
241–250 217
251–260 180 260
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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David Topping 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 David Topping 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, 57 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: 57 D-Index — 65th percentile

65% 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 57
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

David Topping is affiliated with the University of Manchester in the United Kingdom. Their research primarily focuses on environmental science, with significant contributions to several subfields including environmental engineering, health, toxicology and mutagenesis, atmospheric science, global and planetary change, and pulmonary and respiratory medicine.

The main topics covered in their work include:

  • Air Quality Monitoring and Forecasting
  • Air Quality and Health Impacts
  • Chronic Obstructive Pulmonary Disease (COPD) Research
  • Atmospheric chemistry and aerosols
  • Indoor Air Quality and Microbial Exposure
  • Atmospheric Ozone and Climate
  • Atmospheric aerosols and clouds

David Topping has contributed papers to various scientific journals, often appearing in:

  • Zenodo (CERN European Organization for Nuclear Research)
  • Atmosphere
  • Frontiers in Sustainable Cities
  • Atmospheric chemistry and physics
  • OPAL (Open@LaTrobe) (La Trobe University)

Selected recent papers authored or co-authored include:

  • "A predictive group-contribution model for the viscosity of aqueous organic aerosol," 2020, Atmospheric chemistry and physics
  • "New Approach Combining Molecular Fingerprints and Machine Learning to Estimate Relative Ionization Efficiency in Electrospray Ionization," 2020, ACS Omega
  • "Modelling the effect of condensed-phase diffusion on the homogeneous nucleation of ice in ultra-viscous particles," 2020, Atmospheric chemistry and physics
  • "Long-term exposure to air pollution and COVID-19 severity: A cohort study in Greater Manchester, United Kingdom," 2023, Environmental Pollution
  • "Accurate Prediction of Organic Aerosol Evaporation Using Kinetic Multilayer Modeling and the Stokes-Einstein Equation," 2021, The Journal of Physical Chemistry A

They have frequently collaborated with other researchers, including:

  • Caroline Jay
  • Douglas Lowe
  • Ann Gledson
  • Manuele Reani
  • Thomas J. Bannan

Best Publications

  • Hygroscopic properties of submicrometer atmospheric aerosol particles measured with H-TDMA instruments in various environments—a review

    Erik Swietlicki;H-C Hansson;K Hameri;Birgitta Svenningsson

  • The viscosity of atmospherically relevant organic particles

    Jonathan P. Reid;Allan K. Bertram;David O. Topping;Alexander Laskin

  • New and extended parameterization of the thermodynamic model AIOMFAC: calculation of activity coefficients for organic-inorganic mixtures containing carboxyl, hydroxyl, carbonyl, ether, ester, alkenyl, alkyl, and aromatic functional groups

    A. Zuend;C. Marcolli;A. M. Booth;D. M. Lienhard;D. M. Lienhard

  • Secondary organic aerosol reduced by mixture of atmospheric vapours

    Gordon McFiggans;Thomas F. Mentel;Juergen Wildt;Iida Pullinen;Iida Pullinen

  • General overview: European Integrated project on Aerosol Cloud Climate and Air Quality interactions (EUCAARI) - integrating aerosol research from nano to global scales

    M. Kulmala;A. Asmi;H. K. Lappalainen;H. K. Lappalainen;U. Baltensperger

  • 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

  • Colorado River sediment transport: 1. Natural sediment supply limitation and the influence of Glen Canyon Dam

    David J. Topping;David M. Rubin;L. E. Vierra

  • Ubiquity of organic nitrates from nighttime chemistry in the European submicron aerosol

    A. Kiendler-Scharr;A. A. Mensah;A. A. Mensah;E. Friese;David Topping

  • Saturation Vapor Pressures and Transition Enthalpies of Low-Volatility Organic Molecules of Atmospheric Relevance: From Dicarboxylic Acids to Complex Mixtures

    Merete Bilde;Kelley Barsanti;Murray Booth;Christopher D Cappa

  • Real-time sensing of bioaerosols: Review and current perspectives

    J. Alex Huffman;Anne E. Perring;Nicole J. Savage;Bernard Clot

  • A curved multi-component aerosol hygroscopicity model framework: Part 1 Inorganic compounds

    David O. Topping;G. B. McFiggans;H. Coe

  • A curved multi-component aerosol hygroscopicity model framework: Part 2 - Including organic compounds

    David O. Topping;G. B. McFiggans;H. Coe

  • Regional and global impacts of Criegee intermediates on atmospheric sulphuric acid concentrations and first steps of aerosol formation

    Carl J. Percival;Oliver Welz;Arkke J. Eskola;John D. Savee

  • Computation and analysis of the instantaneous-discharge record for the Colorado River at Lees Ferry, Arizona : May 8, 1921, through September 30, 2000

    David J. Topping;John C. Schmidt;L.E. Vierra

  • Maternal carriage of Prevotella during pregnancy associates with protection against food allergy in the offspring

    Peter J Vuillermin;Peter J Vuillermin;Martin O'Hely;Fiona Collier;Fiona Collier;Katrina J Allen;Katrina J Allen

  • Measurements and Predictions of Binary Component Aerosol Particle Viscosity

    Young Chul Song;Allen E. Haddrell;Bryan R Bzdek;Jonathan Philip Reid

  • Microphysical explanation of the RH-dependent water affinity of biogenic organic aerosol and its importance for climate

    N. Rastak;A. Pajunoja;J. C. Acosta Navarro;J. Ma

  • 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

  • Aerosol chemical characteristics from sampling conducted on the Island of Jeju, Korea during ACE Asia

    David Topping;Hugh Coe;Gordon McFiggans;Rachel Burgess

  • UManSysProp v1.0: an online and open-source facility for molecular property prediction and atmospheric aerosol calculations

    David Topping;Mark Barley;Michael K. Bane;Nicholas Higham

  • The rate and pattern of bed incision and bank adjustment on the Colorado River in Glen Canyon downstream from Glen Canyon Dam, 1956–2000

    Paul E. Grams;John C. Schmidt;David J. Topping

  • Surface tensions of multi-component mixed inorganic/organic aqueous systems of atmospheric significance: measurements, model predictions and importance for cloud activation predictions

    D.O. Topping;G.B. McFiggans;G. Kiss;Z. Varga

  • Paleogeographic reconstruction of the Death Valley extended region: Evidence from Miocene large rock-avalanche deposits in the Amargosa Chaos Basin, California

    David J. Topping

  • Simplification of the representation of the organic component of atmospheric particulates

    Gordon McFiggans;M. Rami Alfarra;James Allan;Keith Bower

  • Online gas- and particle-phase measurements of organosulfates, organosulfonates and nitrooxy organosulfates in Beijing utilizing a FIGAERO ToF-CIMS

    Michael Le Breton;Yujue Wang;Åsa M. Hallquist;Ravi Kant Pathak

Frequent Co-Authors

Gordon McFiggans
Gordon McFiggans University of Manchester
Carl J. Percival
Carl J. Percival University of Manchester
Hugh Coe
Hugh Coe University of Manchester
Ilona Riipinen
Ilona Riipinen Stockholm University
Jonathan P. Reid
Jonathan P. Reid University of Bristol
Paul Connolly
Paul Connolly University of Manchester
Martin Gallagher
Martin Gallagher University of Manchester
James Allan
James Allan University of Manchester
Michael Flynn
Michael Flynn University of Manchester
Paul I. Williams
Paul I. Williams University of Manchester

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