World's Best Scientists 2026 revealed!

D-Index & Metrics

Chemistry

D-Index
84
Citations
29703
World Ranking
2779
National Ranking
67

Environmental Sciences

D-Index
86
Citations
29931
World Ranking
715
National Ranking
24

Walter Giger 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 Walter Giger 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: 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 publications 690+

This scientist: 209 publications — 67th percentile

67% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 690 publications or more.

Walter Giger 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 Walter Giger 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: 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: 86 D-Index — 93rd percentile

93% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 126 D-Index or more.

Overview

Walter Giger is affiliated with the Swiss Federal Institute of Aquatic Science and Technology in Switzerland. Their research primarily focuses on environmental science, with emphasis on industrial and manufacturing engineering, health, toxicology, mutagenesis, environmental chemistry, and pollution.

Their work covers a range of topics including environmental chemistry and analysis, water quality monitoring and analysis, water treatment and disinfection, pharmaceutical and antibiotic environmental impacts, effects and risks of endocrine disrupting chemicals, and wastewater treatment and reuse.

Giger has contributed to scientific literature with papers such as:

  • Synthetic surfactants in Swiss sewage sludges: Analytical challenges, concentrations and per capita loads (2021, The Science of The Total Environment)
  • Suspect and Nontarget Screening of Organic Micropollutants in Swiss Sewage Sludge: A Nationwide Survey (2025, Environmental Science & Technology)

Frequent coauthors in their publications include:

  • Lena Schinkel
  • Pablo A. Lara-Martín
  • Juliane Hollender
  • Michael Berg
  • Yves Eberhard

Their articles have appeared in notable venues such as:

  • The Science of The Total Environment
  • Environmental Science & Technology

Best Publications

  • Arsenic contamination of groundwater and drinking water in Vietnam: a human health threat.

    Michael Berg;Hong Con Tran;Thi Chuyen Nguyen;Hung Viet Pham

  • Behaviour of alkylphenol polyethoxylate surfactants in the aquatic environment—I. Occurrence and transformation in sewage treatment

    Marijan Ahel;Walter Giger;Markus Koch

  • 4-Nonylphenol in sewage sludge: accumulation of toxic metabolites from nonionic surfactants.

    Walter Giger;Paul H. Brunner;Christian Schaffner

  • Fate of sulfonamides, macrolides, and trimethoprim in different wastewater treatment technologies

    Anke Göbel;Christa S. McArdell;Adriano Joss;Hansruedi Siegrist

  • Environmental exposure assessment of fluoroquinolone antibacterial agents from sewage to soil.

    Eva M. Golet;Irene Xifra;Hansruedi Siegrist;Alfredo C. Alder

  • Occurrence and sorption behavior of sulfonamides, macrolides, and trimethoprim in activated sludge treatment.

    Anke Göbel;Angela Thomsen;Christa S. McArdell;and Adriano Joss

  • Poly cyclic aromatic hydrocarbons in Recent lake sediments—II. Compounds derived from biogenic precursors during early diagenesis

    Stuart G. Wakeham;Christian Schaffner;Walter Giger

  • Environmental exposure and risk assessment of fluoroquinolone antibacterial agents in wastewater and River water of the Glatt Valley Watershed, Switzerland

    Eva M. Golet;and Alfredo C. Alder;Walter Giger

  • Behaviour of alkylphenol polyethoxylate surfactants in the aquatic environment-II. Occurrence and transformation in rivers

    Marijan Ahel;Walter Giger;Christian Schaffner

  • Occurrence and Fate of Macrolide Antibiotics in Wastewater Treatment Plants and in the Glatt Valley Watershed, Switzerland

    Christa S McArdell;Eva Molnar;Marc J F Suter;Walter Giger

  • Trace Determination of Fluoroquinolone Antibacterial Agents in Urban Wastewater by Solid-Phase Extraction and Liquid Chromatography with Fluorescence Detection

    Eva M. Golet;Alfredo C. Alder;Andreas Hartmann;Thomas A. Ternes

  • Determination of Fluoroquinolone Antibacterial Agents in Sewage Sludge and Sludge-Treated Soil Using Accelerated Solvent Extraction Followed by Solid-Phase Extraction

    Eva M. Golet;Adrian Strehler;and Alfredo C. Alder;Walter Giger

  • Bioaccumulation of the lipophilic metabolites of nonionic surfactants in freshwater organisms.

    M. Ahel;J. McEvoy;W. Giger

  • Polycyclic aromatic hydrocarbons in Recent lake sediments—I. Compounds having anthropogenic origins

    Stuart G. Wakeham;Christian Schaffner;Walter Giger

  • Anaerobic Degradation of Decabromodiphenyl Ether

    Andreas C Gerecke;Paul C Hartmann;Norbert V Heeb;Hans-Peter E Kohler

  • Occurrence and fate of antibiotics as trace contaminants in wastewaters, sewage sludges, and surface waters

    Walter Giger;Alfredo C. Alder;Eva M. Golet;Hans-Peter E. Kohler

  • Partitioning of alkylphenols and alkylphenol polyethoxylates between water and organic solvents

    Marijan Ahel;Walter Giger

  • Trace determination of macrolide and sulfonamide antimicrobials, a human sulfonamide metabolite, and trimethoprim in wastewater using liquid chromatography coupled to electrospray tandem mass spectrometry.

    Anke Göbel;Christa S. Mcardell;Marc J.-F. Suter;Walter Giger

  • Determination of alkylphenols and alkylphenol mono- and diethoxylates in environmental samples by high-performance liquid chromatography

    Marijan. Ahel;Walter. Giger

  • Benzotriazole and Tolyltriazole as Aquatic Contaminants. 1. Input and Occurrence in Rivers and Lakes

    Walter Giger;Christian Schaffner;Hans-Peter E. Kohler

Frequent Co-Authors

Hans-Peter E. Kohler
Hans-Peter E. Kohler Swiss Federal Institute of Aquatic Science and Technology
Alfredo C. Alder
Alfredo C. Alder Nankai University
Marijan Ahel
Marijan Ahel Institut Ruđer Bošković
Michael Berg
Michael Berg Swiss Federal Institute of Aquatic Science and Technology
Christa S. McArdell
Christa S. McArdell Swiss Federal Institute of Aquatic Science and Technology
Jennifer A. Field
Jennifer A. Field Oregon State University
Antonio Marcomini
Antonio Marcomini Ca Foscari University of Venice
Willi Gujer
Willi Gujer Swiss Federal Institute of Aquatic Science and Technology
Hansruedi Siegrist
Hansruedi Siegrist Swiss Federal Institute of Aquatic Science and Technology
Pham Hung Viet
Pham Hung Viet Vietnam National University, Hanoi

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