World's Best Scientists 2026 revealed!

D-Index & Metrics

Environmental Sciences

D-Index
44
Citations
5838
World Ranking
6873
National Ranking
2447

Helmut Kloos 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 Helmut Kloos 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: 141 publications — 37th percentile

37% of scientists in this discipline score the same or lower.

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

Helmut Kloos 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 Helmut Kloos 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: 44 D-Index — 32nd percentile

32% of scientists in this discipline score the same or lower.

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

Overview

Helmut Kloos is affiliated with the University of California, San Francisco, in the United States. Their research primarily focuses on the field of Medicine, with a significant contribution of 34 publications. Within this broad field, Kloos has engaged extensively in subfields such as Nutrition and Dietetics, Pediatrics, Perinatology and Child Health, Infectious Diseases, Plant Science, and Safety Research.

Their work covers a range of topics, notably:

  • Child Nutrition and Water Access
  • Global Maternal and Child Health
  • Poverty, Education, and Child Welfare
  • COVID-19 epidemiological studies
  • Vaccine Coverage and Hesitancy
  • SARS-CoV-2 and COVID-19 Research
  • Parasites and Host Interactions

Frequent coauthors collaborating with Helmut Kloos include Metadel Adane, Addisu Assefa, Ayechew Ademas, Tadesse Sisay, and Mistir Lingerew. The partnership with these researchers has resulted in multiple publications, reflecting ongoing research efforts in related areas.

Kloos has published regularly in several venues, with a notable concentration in:

  • PLoS ONE
  • BMJ Global Health
  • Tropical Medicine and Health
  • Environmental Health Insights
  • Alexandria Journal of Medicine

Among the recent papers authored or coauthored by Kloos are:

  • "The COVID-19 pandemic: diverse contexts; different epidemics-how and why?" (2020), BMJ Global Health
  • "Knowledge, attitudes, and perceptions of COVID-19 vaccine and refusal to receive COVID-19 vaccine among healthcare workers in northeastern Ethiopia" (2022), BMC Public Health
  • "Menstrual hygiene practices among high school girls in urban areas in Northeastern Ethiopia: A neglected issue in water, sanitation, and hygiene research" (2021), PLoS ONE
  • "Chromium removal from tannery wastewater through activated carbon produced from Parthenium hysterophorus weed" (2020), Energy Ecology and Environment
  • "Does menstrual hygiene management and water, sanitation, and hygiene predict reproductive tract infections among reproductive women in urban areas in Ethiopia?" (2020), PLoS ONE

Best Publications

  • The geographic distribution of fluoride in surface and groundwater in Ethiopia with an emphasis on the Rift Valley.

    Redda Tekle-Haimanot;Zenebe Melaku;Helmut Kloos;Clemens Reimann

  • Comparative study of diatoms and macroinvertebrates as indicators of severe water pollution: Case study of the Kebena and Akaki rivers in Addis Ababa, Ethiopia

    Abebe Beyene;Abebe Beyene;Taffere Addis;Taffere Addis;Demeke Kifle;Worku Legesse

  • The COVID-19 pandemic: diverse contexts; different epidemics-how and why?

    Wim Van Damme;Ritwik Dahake;Alexandre Delamou;Brecht Ingelbeen

  • Malaria and water resource development: the case of Gilgel-Gibe hydroelectric dam in Ethiopia

    Delenasaw Yewhalaw;Worku Legesse;Wim Van Bortel;Solomon Gebre-Selassie

  • Distribution of fluoride and fluorosis in Ethiopia and prospects for control.

    Helmut Kloos;Redda Tekle Haimanot

  • A research agenda for helminth diseases of humans: social ecology, environmental determinants, and health systems.

    Andrea Gazzinelli;Rodrigo Correa-Oliveira;Guo-Jing Yang;Boakye A. Boatin

  • Sanitation facilities, hygienic conditions, and prevalence of acute diarrhea among under-five children in slums of Addis Ababa, Ethiopia: Baseline survey of a longitudinal study

    Metadel Adane;Bezatu Mengistie;Helmut Kloos;Girmay Medhin

  • Human behavior, health education and schistosomiasis control: a review.

    Helmut Kloos

  • Socioeconomic determinants of schistosomiasis in a poor rural area in Brazil

    Andrea Gazzinelli;Gustavo Velasquez-Melendez;Sara B. Crawford;Philip T. LoVerde

  • Exposure to Schistosoma mansoni infection in a rural area in Brazil. II: household risk factors.

    Jeffrey Bethony;Jeff T. Williams;Helmut Kloos;John Blangero

  • Eleutherinone, a novel fungitoxic naphthoquinone from Eleutherine bulbosa (Iridaceae).

    Tânia Maria Almeida Alves;Helmut Kloos;Carlos Leomar Zani

  • Urban impact on ecological integrity of nearby rivers in developing countries: the Borkena River in highland Ethiopia

    Abebe Beyene;Abebe Beyene;Worku Legesse;Ludwig Triest;Helmut Kloos

  • Toward universal access to HIV counseling and testing and antiretroviral treatment in Ethiopia: looking beyond HIV testing and ART initiation.

    Yibeltal Assefa;Wim Van Damme;Damen Haile Mariam;Helmut Kloos

  • Spatial patterns of human water contact and Schistosoma mansoni transmission and infection in four rural areas in Machakos district Kenya.

    H. Kloos;A.J.C. Fulford;A.E. Butterworth;R.F. Sturrock

  • Piped water supply interruptions and acute diarrhea among under-five children in Addis Ababa slums, Ethiopia: A matched case-control study.

    Metadel Adane;Bezatu Mengistie;Girmay Medhin;Helmut Kloos

  • Primary health care in Ethiopia under three political systems: Community participation in a war-torn society

    Helmut Kloos

  • Knowledge and perceptions about the health impact of climate change among health sciences students in Ethiopia: a cross-sectional study.

    Andualem S. Nigatu;Andualem S. Nigatu;Benedict Oppong Asamoah;Helmut Kloos

  • Microgeographical patterns of schistosomiasis and water contact behavior; examples from Africa and Brazil

    Helmut Kloos;Andréa Gazzinelli;Paul Van Zuyle

  • Polygodial, the fungitoxic component from the Brazilian medicinal plant Polygonum punctatum

    de Almeida Alves Tm;Ribeiro Fl;Kloos H;Zani Cl

  • The impact of traditional coffee processing on river water quality in Ethiopia and the urgency of adopting sound environmental practices

    Abebe Beyene;Abebe Beyene;Yared Kassahun;Taffere Addis;Fassil Assefa

  • Water contact behavior and schistosomiasis in an upper Egyptian village.

    Kloos H;Higashi Gi;Cattani Ja;Schlinski Vd

Frequent Co-Authors

Philip T. LoVerde
Philip T. LoVerde The University of Texas Health Science Center at San Antonio
Rodrigo Correa-Oliveira
Rodrigo Correa-Oliveira Oswaldo Cruz Foundation
Jeffrey M. Bethony
Jeffrey M. Bethony George Washington University
Wim Van Damme
Wim Van Damme Institute of Tropical Medicine Antwerp
Ludwig Triest
Ludwig Triest Vrije Universiteit Brussel
Erik Meers
Erik Meers Ghent University
Anthony E. Butterworth
Anthony E. Butterworth University of Cambridge
Ricardo Toshio Fujiwara
Ricardo Toshio Fujiwara Universidade Federal de Minas Gerais
Gerald Bloom
Gerald Bloom Institute of Development Studies
John Blangero
John Blangero The University of Texas Rio Grande Valley

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