World's Best Scientists 2026 revealed!
Charles B. Niwagaba

Charles B. Niwagaba

D-Index & Metrics

Environmental Sciences

D-Index
33
Citations
4049
World Ranking
9563
National Ranking
1

Charles B. Niwagaba 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 Charles B. Niwagaba 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: 94 publications — 10th percentile

10% of scientists in this discipline score the same or lower.

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

Charles B. Niwagaba 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 Charles B. Niwagaba 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: 33 D-Index — 2nd percentile

2% of scientists in this discipline score the same or lower.

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

Overview

Charles B. Niwagaba is affiliated with Makerere University in Uganda and primarily works within the field of Environmental Science. Their research spans various subfields, including Industrial and Manufacturing Engineering, Nutrition and Dietetics, Water Science and Technology, Management, Monitoring, Policy and Law, and Pollution.

The scientist's scholarly output extensively covers topics related to environmental and public health concerns, with significant focus on wastewater treatment and reuse, child nutrition and water access, environmental education and sustainability, water governance and infrastructure, as well as pesticide exposure and toxicity, insect and pesticide research, and pesticide and herbicide environmental studies.

Recent publications demonstrate a focus on the environmental impacts of agricultural and water management practices. Key recent papers include:

  • Exposure to multiple pesticides and neurobehavioral outcomes among smallholder farmers in Uganda, 2021, Environment International
  • Comparative Analysis of Pesticide Use Determinants Among Smallholder Farmers From Costa Rica and Uganda, 2020, Environmental Health Insights
  • Willingness among food consumers to recycle human urine as crop fertiliser: Evidence from a multinational survey, 2020, The Science of The Total Environment
  • Particle size as a driver of dewatering performance and its relationship to stabilization in fecal sludge, 2022, Journal of Environmental Management
  • Assessing the microbial risk of faecal sludge use in Ugandan agriculture by comparing field and theoretical model output, 2021, Water Research

Niwagaba frequently publishes in venues such as The Science of The Total Environment, Frontiers in Environmental Science, Frontiers in Water, Journal of Water and Climate Change, and SSRN Electronic Journal.

The scientist collaborates regularly with several co-authors, including Jennifer McConville, Swaib Semiyaga, Musa Manga, Chimdi Muoghalu, and Linda Strande, reflecting a network of research partnerships across projects and studies.

Best Publications

  • Sustainable sanitation technology options for urban slums

    A.Y. Katukiza;M. Ronteltap;C.B. Niwagaba;J.W.A. Foppen

  • A value proposition: resource recovery from faecal sludge—can it be the driver for improved sanitation?

    Stefan Diener;Swaib Semiyaga;Charles B. Niwagaba;Ashley Murray Muspratt

  • Per- and polyfluoroalkyl substances (PFASs) in water, soil and plants in wetlands and agricultural areas in Kampala, Uganda.

    Sahar Dalahmeh;Sana Tirgani;Allan John Komakech;Charles B. Niwagaba

  • Selection of sustainable sanitation technologies for urban slums — A case of Bwaise III in Kampala, Uganda

    A.Y. Katukiza;M. Ronteltap;A. Oleja;C.B. Niwagaba

  • Inactivation of bacteria and viruses in human urine depending on temperature and dilution rate.

    Björn Vinnerås;Annika Nordin;Annika Nordin;Charles Niwagaba;Charles Niwagaba;Karin Nyberg

  • Sanitation facilities in Kampala slums, Uganda: users' satisfaction and determinant factors

    Innocent Kamara Tumwebaze;Christopher Garimoi Orach;Charles Niwagaba;Christoph Luthi

  • Are pit latrines in urban areas of Sub-Saharan Africa performing? A review of usage, filling, insects and odour nuisances

    Anne Nakagiri;Charles B. Niwagaba;Philip M. Nyenje;Robinah N. Kulabako

  • Fuel potential of faecal sludge: calorific value results from Uganda, Ghana and Senegal

    A. Murray Muspratt;T. Nakato;C. Niwagaba;H. Dione

  • Methods to reliably estimate faecal sludge quantities and qualities for the design of treatment technologies and management solutions

    Linda Strande;Lars Schoebitz;Fabian Bischoff;Daniel Isaac Waya Ddiba

  • Descending the sanitation ladder in urban Uganda: evidence from Kampala Slums

    Japheth Kwiringira;Japheth Kwiringira;Peter Atekyereza;Charles Niwagaba;Isabel Günther

  • Decentralized options for faecal sludge management in urban slum areas of Sub-Saharan Africa: A review of technologies, practices and end-uses

    Swaib Semiyaga;Mackay A.E. Okure;Charles B. Niwagaba;Alex Y. Katukiza

  • Grey water characterisation and pollutant loads in an urban slum

    A. Y. Katukiza;A. Y. Katukiza;M. Ronteltap;C. B. Niwagaba;F. Kansiime

  • Optimization of waste collection and disposal in Kampala city

    J.R. Kinobe;J.R. Kinobe;T. Bosona;G. Gebresenbet;C.B. Niwagaba

  • Bench-scale composting of source-separated human faeces for sanitation.

    C. Niwagaba;M. Nalubega;B. Vinnerås;B. Vinnerås;C. Sundberg

  • Gender variations in access, choice to use and cleaning of shared latrines; experiences from Kampala Slums, Uganda

    Japheth Kwiringira;Japheth Kwiringira;Peter Atekyereza;Charles Niwagaba;Isabel Günther

  • Reverse logistics system and recycling potential at a landfill: A case study from Kampala City

    J.R. Kinobe;J.R. Kinobe;Girma Gebresenbet;C. Niwagaba;B. Vinneras

  • Microbial and chemical contamination of water, sediment and soil in the Nakivubo wetland area in Kampala, Uganda

    Samuel Fuhrimann;Samuel Fuhrimann;Michelle Stalder;Michelle Stalder;Michelle Stalder;Mirko S. Winkler;Mirko S. Winkler;Charles B. Niwagaba

  • Grey water treatment in urban slums by a filtration system: optimisation of the filtration medium.

    A.Y. Katukiza;A.Y. Katukiza;M. Ronteltap;C.B. Niwagaba;F. Kansiime

  • Pharmaceutical pollution of water resources in Nakivubo wetlands and Lake Victoria, Kampala, Uganda.

    Sahar Dalahmeh;Emma Björnberg;Anna-Klara Elenström;Charles B. Niwagaba

  • Disease burden due to gastrointestinal pathogens in a wastewater system in Kampala, Uganda

    Samuel Fuhrimann;Mirko S. Winkler;Michelle Stalder;Charles B. Niwagaba

  • Local perspectives on water

    Janet G. Hering;Janet G. Hering;D.L. Sedlak;C. Tortajada;A.K. Biswas

Frequent Co-Authors

Björn Vinnerås
Björn Vinnerås Swedish University of Agricultural Sciences
Håkan Jönsson
Håkan Jönsson Lund University
Annika Nordin
Annika Nordin Swedish University of Agricultural Sciences
Jürg Utzinger
Jürg Utzinger University of Basel
Piet N.L. Lens
Piet N.L. Lens University of Galway
James R. Mihelcic
James R. Mihelcic University of South Florida
Christian Stamm
Christian Stamm Swiss Federal Institute of Aquatic Science and Technology
Eberhard Morgenroth
Eberhard Morgenroth Swiss Federal Institute of Aquatic Science and Technology
Lutz Ahrens
Lutz Ahrens Swedish University of Agricultural Sciences

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Additionally, students looking for diverse knowledge bases may explore an affordable online general studies degree, which allows for interdisciplinary learning, often complementing environmental science studies with business, policy, or communication skills.

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