World's Best Scientists 2026 revealed!

D-Index & Metrics

Environmental Sciences

D-Index
45
Citations
6765
World Ranking
6485
National Ranking
2321

George A. O'Connor 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 George A. O'Connor 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: 169 publications — 51st percentile

51% of scientists in this discipline score the same or lower.

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

George A. O'Connor 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 George A. O'Connor 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: 45 D-Index — 36th percentile

36% of scientists in this discipline score the same or lower.

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

Overview

George A. O'Connor is affiliated with the University of Florida in the United States. Their research primarily spans the fields of Environmental Science and Agricultural and Biological Sciences, with a focus on soil-related studies and environmental impacts.

Their main subfields of study include Soil Science, Environmental Chemistry, Pollution, Molecular Medicine, and Public Health, Environmental and Occupational Health. The predominant research topics cover Soil Carbon and Nitrogen Dynamics, Soil and Water Nutrient Dynamics, Pharmaceutical and Antibiotic Environmental Impacts, Antibiotic Resistance in Bacteria, Ethics in Clinical Research, Soil and Unsaturated Flow, and Phosphorus and nutrient management.

Several recent papers reflect O'Connor's research interests and contributions:

  • Biochar impacts on nutrient dynamics in a subtropical grassland soil: 1. Nitrogen and phosphorus leaching (2020) - Journal of Environmental Quality
  • Azithromycin and Ciprofloxacin Can Promote Antibiotic Resistance in Biosolids and Biosolids-Amended Soils (2021) - Applied and Environmental Microbiology
  • Biochar impacts on nutrient dynamics in a subtropical grassland soil: 2. Greenhouse gas emissions (2020) - Journal of Environmental Quality
  • Biochar type and application methods affected nitrogen and phosphorus leaching from a sandy soil amended with inorganic fertilizers and biosolids (2022) - Agrosystems Geosciences & Environment
  • Assessing the impacts of biochar and fertilizer management strategies on N and P balances in subtropical pastures (2021) - Geoderma

Frequent publication venues for O'Connor include:

  • Journal of Environmental Quality
  • Applied and Environmental Microbiology
  • Agrosystems Geosciences & Environment
  • Geoderma

O'Connor has collaborated extensively with several researchers. Notable frequent co-authors are:

  • Yanyan Lu
  • Maria L. Silveira
  • João Vendramini
  • Li Y
  • John E. Erickson

Best Publications

  • Plant uptake of non-ionic organic chemicals from soils

    J.A. Ryan;R.M. Bell;J.M. Davidson;G.A. O'Connor

  • Heavy metal sequential extraction methods—A modification for tropical soils

    M.L. Silveira;L.R.F. Alleoni;G.A. O’Connor;A.C. Chang

  • Influence of water treatment residuals on phosphorus solubility and leaching.

    H.A. Elliott;G.A. O'Connor;P. Lu;S. Brinton

  • Phosphorus Leaching from Biosolids‐Amended Sandy Soils

    H. A. Elliott;G. A. O'Connor;S. Brinton

  • Phosphorus Immobilization in Micropores of Drinking-Water Treatment Residuals: Implications for Long-Term Stability

    Konstantinos C. Makris;Willie G. Harris;George A. O'connor;Thomas A. Obreza

  • Phytoavailability of biosolids phosphorus.

    G. A. O'Connor;D. Sarkar;S. R. Brinton;H. A. Elliott

  • Physicochemical properties related to long-term phosphorus retention by drinking-water treatment residuals.

    Konstantinos C. Makris;Willie G. Harris;George A. O'Connor;Thomas A. Obreza

  • Use and misuse of the DTPA soil test

    G. A. O'Connor

  • Sustainable land application: an overview.

    GA O'Connor;HA Elliott;NT Basta;RK Bastian

  • Intraparticle phosphorus diffusion in a drinking water treatment residual at room temperature

    Konstantinos C Makris;Hassan El-Shall;Willie G Harris;George A O'Connor

  • Effect of exchangeable ions and ionic strength on boron adsorption by montmorillonite and illite

    R. Keren;G. A. O'Connor

  • Runoff phosphorus losses from surface-applied biosolids.

    H. A. Elliott;R. C. Brandt;G. A. O'Connor

  • Sorption and Degradation of Pentachlorophenol in Sludge-Amended Soils

    Cheryl A. Bellin;George A. O'Connor;Yan Jin

  • Long-term phosphorus immobilization by a drinking water treatment residual

    Sampson Agyin-Birikorang;George A. O'Connor;Lee W. Jacobs;Konstantinos C. Makris

  • Toxicity and bioaccumulation of biosolids-borne triclocarban (TCC) in terrestrial organisms

    Elizabeth Hodges Snyder;George A. O’Connor;Drew C. McAvoy

  • Organic compounds in sludge-amended soils and their potential for uptake by crop plants

    George A. O'Connor

  • Degraded water reuse: an overview.

    G. A. O'Connor;H. A. Elliott;R. K. Bastian

  • Biosolids effects on phosphorus retention and release in some sandy Florida soils.

    Peng Lu;George A. O'Connor

  • A modified risk assessment to establish molybdenum standards for land application of biosolids.

    George A. O'Connor;Robert B. Brobst;Rufus L. Chaney;Ron L. Kincaid

  • Lability of drinking water treatment residuals (WTR) immobilized phosphorus: aging and pH effects.

    Sampson Agyin-Birikorang;George A. O'Connor

Frequent Co-Authors

Lee Russell McDowell
Lee Russell McDowell University of Florida
N.S. Wilkinson
N.S. Wilkinson University of Florida
Lynn E. Sollenberger
Lynn E. Sollenberger University of Florida
Willie G. Harris
Willie G. Harris University of Florida
Dibyendu Sarkar
Dibyendu Sarkar Stevens Institute of Technology
Rufus L. Chaney
Rufus L. Chaney US Department of Agriculture
James W. Jawitz
James W. Jawitz University of Florida
Gary A. Eiceman
Gary A. Eiceman New Mexico State University
Yuncong Li
Yuncong Li University of Florida
Yan Jin
Yan Jin University of Delaware

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