World's Best Scientists 2026 revealed!
Barbara Kasprzyk-Hordern

Barbara Kasprzyk-Hordern

D-Index & Metrics

Environmental Sciences

D-Index
72
Citations
26128
World Ranking
1470
National Ranking
119

Chemistry

D-Index
68
Citations
24055
World Ranking
6402
National Ranking
369

Barbara Kasprzyk-Hordern 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 Barbara Kasprzyk-Hordern 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: 280 publications — 83rd percentile

83% of scientists in this discipline score the same or lower.

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

Barbara Kasprzyk-Hordern 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 Barbara Kasprzyk-Hordern 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: 72 D-Index — 85th percentile

85% of scientists in this discipline score the same or lower.

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

Overview

What is she best known for?

The fields of study she is best known for:

  • Organic chemistry
  • Catalysis
  • Biochemistry

Her primary scientific interests are in Wastewater, Chromatography, Solid phase extraction, Water treatment and Electrospray. Her biological study spans a wide range of topics, including Sewage, Point of zero charge, Effluent, Sewage treatment and Environmental chemistry. Her work carried out in the field of Sewage treatment brings together such families of science as Environmental monitoring and River water.

Her work in Environmental chemistry addresses issues such as Surface water, which are connected to fields such as Water pollution, Benzoylecgonine and Water quality. Her Water treatment research integrates issues from Catalytic ozonation, Catalysis, Ozone, Biochemical engineering and Aqueous solution. Environmental impact of pharmaceuticals and personal care products is closely connected to Ion suppression in liquid chromatography–mass spectrometry in her research, which is encompassed under the umbrella topic of Electrospray.

Her most cited work include:

  • A review on emerging contaminants in wastewaters and the environment: current knowledge, understudied areas and recommendations for future monitoring. (1145 citations)
  • The removal of pharmaceuticals, personal care products, endocrine disruptors and illicit drugs during wastewater treatment and its impact on the quality of receiving waters. (1023 citations)
  • Catalytic ozonation and methods of enhancing molecular ozone reactions in water treatment (965 citations)

What are the main themes of her work throughout her whole career to date?

Barbara Kasprzyk-Hordern spends much of her time researching Wastewater, Chromatography, Environmental chemistry, Enantiomer and Environmental health. The Wastewater study combines topics in areas such as Sewage, Illicit drug, Effluent and Sewage treatment. Her Environmental chemistry research incorporates themes from Water treatment, Contamination, Biodegradation and Ozone.

Her Water treatment research includes themes of Aqueous solution, Organic chemistry and Catalysis. She has included themes like Ephedrine, Chirality, Enantioselective synthesis and Drug in her Enantiomer study. Her study in Drug is interdisciplinary in nature, drawing from both Methamphetamine and MDMA.

She most often published in these fields:

  • Wastewater (38.24%)
  • Chromatography (24.37%)
  • Environmental chemistry (19.33%)

What were the highlights of her more recent work (between 2019-2021)?

  • Wastewater (38.24%)
  • Wastewater based epidemiology (10.50%)
  • Environmental health (13.03%)

In recent papers she was focusing on the following fields of study:

Her scientific interests lie mostly in Wastewater, Wastewater based epidemiology, Environmental health, Antibiotics and Antibiotic resistance. Her studies in Wastewater integrate themes in fields like Illicit drug, River catchment, Biotechnology and Effluent. Her biological study deals with issues like Environmental chemistry, which deal with fields such as Benzene and Contamination.

Barbara Kasprzyk-Hordern interconnects MDMA and Mephedrone in the investigation of issues within Environmental health. Her Antibiotics research is multidisciplinary, relying on both Uplc ms ms, Prescription data and Pollutant. Within one scientific family, Barbara Kasprzyk-Hordern focuses on topics pertaining to Veterinary medicine under Antibiotic resistance, and may sometimes address concerns connected to Sewage treatment and Levofloxacin.

Between 2019 and 2021, her most popular works were:

  • Future perspectives of wastewater-based epidemiology: Monitoring infectious disease spread and resistance to the community level. (96 citations)
  • Wastewater-Based Epidemiology: Global Collaborative to Maximize Contributions in the Fight Against COVID-19. (91 citations)
  • Spatio‐temporal assessment of illicit drug use at large scale: evidence from 7 years of international wastewater monitoring (52 citations)

In her most recent research, the most cited papers focused on:

  • Organic chemistry
  • Biochemistry
  • Catalysis

Barbara Kasprzyk-Hordern mainly investigates Wastewater, Environmental health, MDMA, Early warning system and Benzoylecgonine. Barbara Kasprzyk-Hordern brings together Wastewater and Urban environment to produce work in her papers. As part of her studies on MDMA, Barbara Kasprzyk-Hordern often connects relevant subjects like Drug.

Early warning system combines with fields such as Infectious disease, Outbreak, Population growth, Knowledge management and General partnership in her research. Her Benzoylecgonine study incorporates themes from Illicit drug, Methamphetamine, Harm reduction and Stimulant. Her research integrates issues of Environmental chemistry, Ozone exposure, Tap water and Benzene in her study of Effluent.

Best Publications

  • A review on emerging contaminants in wastewaters and the environment: current knowledge, understudied areas and recommendations for future monitoring.

    Bruce Petrie;Ruth Barden;Barbara Kasprzyk-Hordern

  • The removal of pharmaceuticals, personal care products, endocrine disruptors and illicit drugs during wastewater treatment and its impact on the quality of receiving waters.

    Barbara Kasprzyk-Hordern;Richard M. Dinsdale;Alan J. Guwy

  • Catalytic ozonation and methods of enhancing molecular ozone reactions in water treatment

    Barbara Kasprzyk-Hordern;Maria Ziółek;Jacek Nawrocki

  • The occurrence of pharmaceuticals, personal care products, endocrine disruptors and illicit drugs in surface water in South Wales, UK.

    Barbara Kasprzyk-Hordern;Richard M. Dinsdale;Alan J. Guwy

  • The efficiency and mechanisms of catalytic ozonation

    Jacek Nawrocki;Barbara Kasprzyk-Hordern

  • The fate of pharmaceuticals and personal care products (PPCPs), endocrine disrupting contaminants (EDCs), metabolites and illicit drugs in a WWTW and environmental waters.

    Edward Archer;Bruce Petrie;Barbara Kasprzyk-Hordern;Gideon M. Wolfaardt

  • Future perspectives of wastewater-based epidemiology: Monitoring infectious disease spread and resistance to the community level.

    Natalie Sims;Barbara Kasprzyk-Hordern

  • Chemistry of alumina, reactions in aqueous solution and its application in water treatment.

    Barbara Kasprzyk-Hordern

  • Comparing illicit drug use in 19 European cities through sewage analysis.

    Kevin V. Thomas;Lubertus Bijlsma;Sara Castiglioni;Adrian Covaci

  • Multi-residue method for the determination of basic/neutral pharmaceuticals and illicit drugs in surface water by solid-phase extraction and ultra performance liquid chromatography - positive electrospray ionisation tandem mass spectrometry

    Barbara Kasprzyk-Hordern;Richard M. Dinsdale;Alan J. Guwy

  • Pharmacologically active compounds in the environment and their chirality

    Barbara Kasprzyk-Hordern;Barbara Kasprzyk-Hordern

  • Spatial differences and temporal changes in illicit drug use in Europe quantified by wastewater analysis.

    Christoph Ort;Alexander L. N. van Nuijs;Jean-Daniel Berset;Lubertus Bijlsma

  • Wastewater-Based Epidemiology: Global Collaborative to Maximize Contributions in the Fight Against COVID-19.

    Aaron Bivins;Devin North;Arslan Ahmad;Warish Ahmed

  • Multiresidue methods for the analysis of pharmaceuticals, personal care products and illicit drugs in surface water and wastewater by solid-phase extraction and ultra performance liquid chromatography-electrospray tandem mass spectrometry.

    Barbara Kasprzyk-Hordern;Barbara Kasprzyk-Hordern;Richard M. Dinsdale;Alan J. Guwy

  • Spatial and temporal occurrence of pharmaceuticals and illicit drugs in the aqueous environment and during wastewater treatment: New developments

    David R. Baker;Barbara Kasprzyk-Hordern

  • Multi-residue analysis of drugs of abuse in wastewater and surface water by solid-phase extraction and liquid chromatography-positive electrospray ionisation tandem mass spectrometry.

    David R. Baker;Barbara Kasprzyk-Hordern;Barbara Kasprzyk-Hordern

  • Critical evaluation of methodology commonly used in sample collection, storage and preparation for the analysis of pharmaceuticals and illicit drugs in surface water and wastewater by solid phase extraction and liquid chromatography-mass spectrometry

    David R Baker;Barbara Kasprzyk-Hordern

  • Measuring biomarkers in wastewater as a new source of epidemiological information: Current state and future perspectives

    Emma Gracia-Lor;Emma Gracia-Lor;Sara Castiglioni;Richard Bade;Frederic Been

  • Multi-residue analysis of 90 emerging contaminants in liquid and solid environmental matrices by ultra-high-performance liquid chromatography tandem mass spectrometry

    Bruce Petrie;Jane Youdan;Ruth Barden;Barbara Kasprzyk-Hordern

  • N-nitrosodimethylamine (NDMA) formation during ozonation of dimethylamine-containing waters

    Przemysław Andrzejewski;Barbara Kasprzyk-Hordern;Barbara Kasprzyk-Hordern;Jacek Nawrocki

Frequent Co-Authors

Kevin V. Thomas
Kevin V. Thomas University of Queensland
Sara Castiglioni
Sara Castiglioni Mario Negri Institute for Pharmacological Research
Félix Hernández
Félix Hernández Jaume I University
Pim de Voogt
Pim de Voogt University of Amsterdam
Alexander L.N. van Nuijs
Alexander L.N. van Nuijs University of Antwerp
Adrian Covaci
Adrian Covaci University of Antwerp
Christoph Ort
Christoph Ort Swiss Federal Institute of Aquatic Science and Technology
Lubertus Bijlsma
Lubertus Bijlsma Jaume I University
Ettore Zuccato
Ettore Zuccato Mario Negri Institute for Pharmacological Research
Benedek G. Plósz
Benedek G. Plósz University of Bath

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