World's Best Scientists 2026 revealed!

D-Index & Metrics

Environmental Sciences

D-Index
45
Citations
6530
World Ranking
6511
National Ranking
21

Tomas Randak 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 Tomas Randak 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: 149 publications — 41st percentile

41% of scientists in this discipline score the same or lower.

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

Tomas Randak 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 Tomas Randak 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

Tomas Randak is affiliated with the University of South Bohemia in České Budějovice in the Czech Republic. Their research focuses primarily on environmental science and agricultural and biological sciences, with extensive work in pollution, health, toxicology and mutagenesis, nature and landscape conservation, aquatic science, and ecology.

The research topics covered by Tomas Randak include:

  • Pharmaceutical and antibiotic environmental impacts
  • Fish ecology and management studies
  • Environmental toxicology and ecotoxicology
  • Pharmacological effects and assays
  • Aquaculture disease management and microbiota
  • Aquaculture nutrition and growth
  • Fish biology and ecology studies

Tomas Randak has contributed to a number of publications. Some recent papers include:

  • Psychoactive pharmaceuticals in aquatic systems: A comparative assessment of environmental monitoring approaches for water and fish, 2020, Environmental Pollution
  • Water reuse and aquaculture: Pharmaceutical bioaccumulation by fish during tertiary treatment in a wastewater stabilization pond, 2020, Environmental Pollution
  • Methamphetamine pollution elicits addiction in wild fish, 2021, Journal of Experimental Biology
  • In situ calibration of polar organic chemical integrative sampler (POCIS) for monitoring of pharmaceuticals in surface waters, 2020, Environmental Pollution
  • Neuroactive drugs and other pharmaceuticals found in blood plasma of wild European fish, 2020, Environment International

Frequent co-authors collaborating with Randak include:

  • Kateřina Grabicová
  • Roman Grabic
  • Jan Turek
  • Pavel Horký
  • Ondřej Slavík

They publish regularly in several key environmental and ecological journals such as:

  • Environmental Pollution
  • Ecotoxicology and Environmental Safety
  • The Science of The Total Environment
  • Acta Ichthyologica Et Piscatoria
  • Journal of Hazardous Materials

Best Publications

  • Seasonal changes in antibiotics, antidepressants/psychiatric drugs, antihistamines and lipid regulators in a wastewater treatment plant

    Oksana Golovko;Vimal Kumar;Ganna Fedorova;Tomas Randak

  • Bioaccumulation of psychoactive pharmaceuticals in fish in an effluent dominated stream.

    Katerina Grabicova;Roman Grabic;Ganna Fedorova;Jerker Fick

  • Acute toxicity of carbamazepine to juvenile rainbow trout (Oncorhynchus mykiss): effects on antioxidant responses, hematological parameters and hepatic EROD.

    Zhi-Hua Li;Zhi-Hua Li;Zhi-Hua Li;Vladimir Zlabek;Josef Velisek;Roman Grabic

  • Hepatic antioxidant status and hematological parameters in rainbow trout, Oncorhynchus mykiss, after chronic exposure to carbamazepine

    Zhi-Hua Li;Josef Velisek;Vladimir Zlabek;Roman Grabic;Roman Grabic

  • Chronic toxicity of verapamil on juvenile rainbow trout (Oncorhynchus mykiss): effects on morphological indices, hematological parameters and antioxidant responses.

    Zhi-Hua Li;Zhi-Hua Li;Josef Velisek;Vladimir Zlabek;Roman Grabic

  • Presence of pharmaceuticals in benthic fauna living in a small stream affected by effluent from a municipal sewage treatment plant

    Katerina Grabicova;Roman Grabic;Martin Blaha;Vimal Kumar

  • Comparison of the quantitative performance of a Q‐Exactive high‐resolution mass spectrometer with that of a triple quadrupole tandem mass spectrometer for the analysis of illicit drugs in wastewater

    Ganna Fedorova;Tomas Randak;Richard H. Lindberg;Roman Grabic

  • Modulation of antioxidant defence system in brain of rainbow trout (Oncorhynchus mykiss) after chronic carbamazepine treatment.

    Zhi-Hua Li;Vladimir Zlabek;Josef Velisek;Roman Grabic;Roman Grabic

  • Tissue-specific bioconcentration of antidepressants in fish exposed to effluent from a municipal sewage treatment plant

    Katerina Grabicova;Richard H. Lindberg;Marcus Östman;Roman Grabic

  • Effects of exposure to sublethal propiconazole on the antioxidant defense system and Na+–K+-ATPase activity in brain of rainbow trout, Oncorhynchus mykiss

    Zhi-Hua Li;Zhi-Hua Li;Vladimir Zlabek;Roman Grabic;Roman Grabic;Ping Li;Ping Li

  • Removal and seasonal variability of selected analgesics/anti-inflammatory, anti-hypertensive/cardiovascular pharmaceuticals and UV filters in wastewater treatment plant

    Oksana Golovko;Vimal Kumar;Ganna Fedorova;Tomas Randak

  • Use of hematological and plasma biochemical parameters to assess the chronic effects of a fungicide propiconazole on a freshwater teleost.

    Zhi-Hua Li;Josef Velisek;Roman Grabic;Ping Li;Ping Li

  • Transport of pharmaceuticals and their metabolites between water and sediments as a further potential exposure for aquatic organisms

    Olga Koba;Katerina Grabicova;Daniel Cerveny;Jan Turek

  • A passive sampling method for detecting analgesics, psycholeptics, antidepressants and illicit drugs in aquatic environments in the Czech Republic.

    G. Fedorova;T. Randak;O. Golovko;V. Kodes

  • Modulation of glutathione-related antioxidant defense system of fish chronically treated by the fungicide propiconazole.

    Zhi-Hua Li;Vladimir Zlabek;Roman Grabic;Roman Grabic;Ping Li;Ping Li

  • Presence of UV filters in surface water and the effects of phenylbenzimidazole sulfonic acid on rainbow trout (Oncorhynchus mykiss) following a chronic toxicity test.

    Katerina Grabicova;Ganna Fedorova;Viktoriia Burkina;Christoph Steinbach

  • Storage effect on the analysis of pharmaceuticals and personal care products in wastewater.

    Ganna Fedorova;Oksana Golovko;Tomas Randak;Roman Grabic

  • Simultaneous determination of 32 antibiotics in aquaculture products using LC-MS/MS

    Ganna Fedorova;Vaclav Nebesky;Tomas Randak;Roman Grabic

  • Effect of human pharmaceutical Carbamazepine on the quality parameters and oxidative stress in common carp (Cyprinus carpio L.) spermatozoa.

    Zhi-Hua Li;Zhi-Hua Li;Ping Li;Ping Li;Marek Rodina;Tomas Randak

  • Responses of antioxidant status and Na+-K+-ATPase activity in gill of rainbow trout, Oncorhynchus mykiss, chronically treated with carbamazepine.

    Zhi-Hua Li;Vladimir Zlabek;Josef Velisek;Roman Grabic

  • Brominated flame retardants and related chlorinated persistent organic pollutants in fish from river Elbe and its main tributary Vltava.

    Jana Hajšlová;Jana Pulkrabová;Jan Poustka;Tomáš Čajka

Frequent Co-Authors

Roman Grabic
Roman Grabic University of South Bohemia in České Budějovice
Josef Velisek
Josef Velisek University of South Bohemia in České Budějovice
Bryan W. Brooks
Bryan W. Brooks Baylor University
Jana Hajslova
Jana Hajslova University of Chemistry and Technology
Antonín Kouba
Antonín Kouba University of South Bohemia in České Budějovice
Klára Hilscherová
Klára Hilscherová Masaryk University
Jerker Fick
Jerker Fick Umeå University
Pavel Jurajda
Pavel Jurajda Czech Academy of Sciences
Amadeu M.V.M. Soares
Amadeu M.V.M. Soares University of Aveiro
Tomas Cajka
Tomas Cajka Czech Academy of Sciences

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