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Hospital / health system · Johannesburg · South Africa

National Institute for Occupational Health

In research, National Institute for Occupational Health stands highest in Health Sciences (#17,882 of 20,462 worldwide) and Medicine (#17,284 of 17,978 worldwide), over all time.

nioh.ac.zaROR OpenAlex
World rank, all time
#30,403
of 42,892
Rank in South Africa
#112
of 154
Research works
314
▲ 19% vs 2013–17
Citations
6.9k
21.9 per fractional work
Top-10% rate
15.8%
record average 16.5%
Open access
45%
world 28%

What is National Institute for Occupational Health known for in research?

The fields where it stands highest, over all time, ranked among every institution above the floor in each field.

FieldWorld rankWhere that sitsTop-10% rateWorks
Health SciencesDomain #17,882 of 20,462 10.8%176
MedicineField #17,284 of 17,978 10.5%132

Each strip is that field’s whole ranked pool, with the notch where National Institute for Occupational Health sits in it, in the colour of the band that rank falls in. The track under the rate is the rate itself: it carries no world mark, because the world rate differs by field (from about 6% to 21% in this record).

Field profile

Location quotient across every field it publishes in: outside the ring is more than an institution of this size would be expected to publish, inside it is less.

Agricultural and Biological Sciences: 0.36× its world share, 1 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 0.79× its world share, 2 worksBiochemistry, Geneti…Immunology and Microbiology: 1.00× its world share, 0 worksImmunology and Micro…Neuroscience: 0.21× its world share, 0 worksNeurosciencePharmacology, Toxicology and Pharmaceutics: 0.34× its world share, 0 worksPharmacology, Toxico…Chemical Engineering: 2.30× its world share, 0 worksChemical EngineeringChemistry: 1.41× its world share, 1 worksChemistryComputer Science: 0.11× its world share, 0 worksComputer ScienceEarth and Planetary Sciences: 0.03× its world share, 0 worksEarth and Planetary …Energy: 0.31× its world share, 0 worksEnergyEngineering: 0.39× its world share, 2 worksEngineeringEnvironmental Science: 2.56× its world share, 5 worksEnvironmental ScienceMaterials Science: 1.24× its world share, 2 worksMaterials ScienceMathematics: 0.34× its world share, 0 worksMathematicsDentistry: 0.87× its world share, 0 worksDentistryHealth Professions: 6.06× its world share, 6 worksHealth ProfessionsMedicine: 1.81× its world share, 14 worksMedicineNursing: 5.68× its world share, 1 worksNursingVeterinary: 5.30× its world share, 0 worksVeterinaryArts and Humanities: 0.06× its world share, 0 worksArts and HumanitiesBusiness, Management and Accounting: 0.10× its world share, 0 worksBusiness, Management…Decision Sciences: 0.22× its world share, 0 worksDecision SciencesEconomics, Econometrics and Finance: 1.31× its world share, 1 worksEconomics, Econometr…Psychology: 1.00× its world share, 1 worksPsychologySocial Sciences: 0.31× its world share, 2 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Health Professions, 6.1×. Every wedge is a field page.

Who are the top researchers at National Institute for Occupational Health?

Ranked on the composite score, Eva Hnizdo lead among researchers whose main affiliation is National Institute for Occupational Health.

  1. 1 Eva Hnizdo South Africa · #317,565 worldwide 147 citations · 16 works
All ranked researchers at National Institute for Occupational Health

Which keywords describe research at National Institute for Occupational Health?

By fractional works in 2022–2025, weighted toward what it does more of than the world: Health Effects, COVID-19, Toxicity, Global Burden of Disease, Accident Prevention, Safety Culture, Mortality and Risk Perception.

▲ more of its work than of the world’s◆ about the world’s share▼ less than the world’s

Size is fractional works in 2022–2025 in the topics tagged with each word; colour is the word's share of this institution's work against its share of the world's. The 40 words are chosen for being large and distinctive. Each links to the topic it comes from most.

All 40 words, with their numbers
  1. Health Effects4▲ 15×8 topics
  2. COVID-193▲ 5.9×9 topics
  3. Epidemiology3▲ 2.0×29 topics
  4. Environmental Impact2▲ 3.7×8 topics
  5. Toxicity2▲ 15×5 topics
  6. Public Health2▲ 4.3×16 topics
  7. Pandemic2▲ 5.2×7 topics
  8. Global Burden of Disease2▲ 22×2 topics
  9. Accident Prevention2▲ 71×2 topics
  10. Mental Health2▲ 3.5×12 topics
  11. Oxidative Stress2▲ 3.2×5 topics
  12. Safety Culture2▲ 71×2 topics
  13. Cardiovascular Disease2▲ 4.3×6 topics
  14. Mortality2▲ 8.6×3 topics
  15. Risk Perception2▲ 18×2 topics
  16. Occupational Safety2▲ 47×1 topic
  17. Safety Climate2▲ 51×1 topic
  18. Epidemiological Studies2▲ 29×2 topics
  19. Immunotherapy2▲ 5.5×3 topics
  20. Nanomaterials2▲ 3.6×2 topics
  21. Particulate Matter2▲ 26×2 topics
  22. Air Pollution1▲ 28×1 topic
  23. Fine Particulate Air Pollution1▲ 38×1 topic
  24. BAP1 mutations1▲ 193×1 topic
  25. Malignant Pleural Mesothelioma1▲ 193×1 topic
  26. Ethics1▲ 6.1×2 topics
  27. Green Synthesis1▲ 16×2 topics
  28. Healthcare Workers1▲ 13×4 topics
  29. Antimicrobial1▲ 10×1 topic
  30. Biology1▲ 135×2 topics
  31. Imaging1▲ 12×2 topics
  32. Ionizing Radiation1▲ 38×2 topics
  33. Nanoscale Science1▲ 272×1 topic
  34. Nanotechnology1▲ 16×1 topic
  35. Primary Care1▲ 7.6×6 topics
  36. Silver1▲ 38×1 topic
  37. Health Impact1▲ 47×2 topics
  38. SARS-CoV-21▲ 8.0×4 topics
  39. medical waste1▲ 90×1 topic
  40. solid waste management1▲ 90×1 topic

Which research topics does National Institute for Occupational Health publish most on?

By volume in 2022–2025: Occupational Health and Safety Research, Air Quality and Health Impacts, Occupational and environmental lung diseases and Nanoparticles: synthesis and applications.

Occupational Health and …2Occupational Health and Safety Research: 2 fractional worksAir Quality and Health I…1Air Quality and Health Impacts: 1 fractional worksOccupational and environ…1Occupational and environmental lung diseases: 1 fractional worksNanoparticles: synthesis…1Nanoparticles: synthesis and applications: 1 fractional worksNanotechnology research and applications: 1 fractional worksHealthcare and Environmental Waste Management: 1 fractional worksIndoor Air Quality and M…1Indoor Air Quality and Microbial Exposure: 1 fractional worksOccupational exposure an…1Occupational exposure and asthma: 1 fractional worksInfection Control and Ve…1Infection Control and Ventilation: 1 fractional worksAntimicrobial agents and…1Antimicrobial agents and applications: 1 fractional works
Radiological and Ultrasound TechnologyHealth, Toxicology and MutagenesisPulmonary and Respiratory MedicineMaterials Chemistry3 others

Area is fractional works; colour is the subfield each topic belongs to.

  1. 1 Occupational Health and Safety Research Radiological and Ultrasound Technology 2 works
  2. 2 Air Quality and Health Impacts Health, Toxicology and Mutagenesis 1 works
  3. 3 Occupational and environmental lung diseases Pulmonary and Respiratory Medicine 1 works
  4. 4 Nanoparticles: synthesis and applications Materials Chemistry 1 works
  5. 5 Nanotechnology research and applications Biomedical Engineering 1 works
  6. 6 Healthcare and Environmental Waste Management Public Health, Environmental and Occupational Health 1 works
  7. 7 Indoor Air Quality and Microbial Exposure Health, Toxicology and Mutagenesis 1 works
  8. 8 Occupational exposure and asthma Public Health, Environmental and Occupational Health 1 works
  9. 9 Infection Control and Ventilation Pulmonary and Respiratory Medicine 1 works
  10. 10 Antimicrobial agents and applications Organic Chemistry 1 works

How open and international is its research?

Against the world’s own shares — the tick on each track. Both are shares of its output, so they sit on one scale and can be read against each other as well as against the world.

openly available45.1%not open54.9%

World: 28% of research is openly available.

with international co-authors23.2%domestic only76.8%

World: 19% is written across borders.

How has National Institute for Occupational Health's research output changed?

Output in 2018–2022 was 19% higher than in 2013–2017.

1990200020102020
grewheldshrank

The same series as a ribbon — one cell per year, darker for more. The line above answers how much; this answers when.

Other research institutions in Johannesburg

All research institutions in Johannesburg

Research measures only: rankings here say nothing about teaching, admissions or student experience. Comparable institutions and collaboration partners are in the interactive view on the map.