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Government institution · Accra · Ghana

Environmental Protection Agency

In research, Environmental Protection Agency stands highest in Environmental Science (#1,228 of 3,334 worldwide) and Physical Sciences (#7,411 of 10,670 worldwide), 2022-now. Relative to its size it is most specialised in Environmental Science (Environmental Science is 10.8× its share of world research).

epa.gov.gh/epaROR OpenAlex
World rank, 2022-now
#12,502
of 22,385 · #4,034 all time
Rank in Ghana
#30
of 45
Research works
935
▲ 48% vs 2018-21
Citations
25k
26.6 per fractional work
Top-10% rate
10.9%
all institutions 10.0%
vs its own fields
1.00×
1.00× is exactly expected
Open access
34%
world 40%
International
78%
world 18%
Environmental Protection Agency

What is Environmental Protection Agency known for in research?

The fields where it stands highest, 2022-now, ranked among every institution above the floor in each field.

FieldWorld rankWhere that sitsTop-10% rateWorksAll time
Environmental ScienceField #1,228 of 3,334 10.4%72 #770
Physical SciencesDomain #7,411 of 10,670 10.3%96 #2709

Each strip is that field's whole ranked pool, with the notch where Environmental Protection Agency 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 average mark, because the average differs by field (from about 6% in Dentistry to 21% in Economics).

Which fields of science does Environmental Protection Agency work in?

In 2022-now, 71% of research at Environmental Protection Agency is in Physical Sciences, 12% in Social Sciences. Its largest fields are Environmental Science (54%), Social Sciences (7%), Earth and Planetary Sciences (7%). It does 1.8× the world's share of Physical Sciences.

Physical Sciences: 114 fractional works · 71.0% of its workEnvironmental Science: 87 fractional works · 53.9% of its workHealth, Toxicology and Mutagenesis: 18 fractional works · 11.0% of its workEcology: 13 fractional works · 8.0% of its workEnvironmental Chemistry: 11 fractional works · 6.5% of its workGlobal and Planetary Change: 10 fractional works · 6.3% of its workWater Science and Technology: 8 fractional works · 5.1% of its workPollution: 8 fractional works · 4.7% of its workEnvironmental Engineering: 7 fractional works · 4.6% of its workIndustrial and Manufacturing Engineering: 5 fractional works · 2.8% of its workManagement, Monitoring, Policy and Law: 4 fractional works · 2.7% of its workNature and Landscape Conservation: 3 fractional works · 1.6% of its workEcological Modeling: 1 fractional works · 0.5% of its workEarth and Planetary Sciences: 11 fractional works · 6.8% of its workOceanography: 5 fractional works · 2.9% of its workAtmospheric Science: 4 fractional works · 2.6% of its workGeochemistry and Petrology: 1 fractional works · 0.7% of its workPaleontology: 0 fractional works · 0.3% of its workEarth-Surface Processes: 0 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.2% of its workEngineering: 9 fractional works · 5.6% of its workCivil and Structural Engineering: 3 fractional works · 2.0% of its workAutomotive Engineering: 1 fractional works · 0.9% of its workOcean Engineering: 1 fractional works · 0.5% of its workBiomedical Engineering: 1 fractional works · 0.5% of its workSafety, Risk, Reliability and Quality: 1 fractional works · 0.4% of its workBuilding and Construction: 1 fractional works · 0.4% of its workElectrical and Electronic Engineering: 0 fractional works · 0.3% of its workMechanical Engineering: 0 fractional works · 0.3% of its workSmaller subfields together: 1 fractional works · 0.4% of its workComputer Science: 2 fractional works · 1.2% of its workArtificial Intelligence: 1 fractional works · 0.8% of its workSmaller subfields together: 1 fractional works · 0.4% of its workChemistry: 2 fractional works · 1.1% of its workAnalytical Chemistry: 1 fractional works · 0.4% of its workSmaller subfields together: 1 fractional works · 0.7% of its workEnergy: 2 fractional works · 0.9% of its workRenewable Energy, Sustainability and the Environment: 1 fractional works · 0.9% of its workSmaller subfields together: 0 fractional works · 0.1% of its workMaterials Science: 1 fractional works · 0.9% of its workMaterials Chemistry: 1 fractional works · 0.4% of its workBiomaterials: 1 fractional works · 0.4% of its workSmaller subfields together: 0 fractional works · 0.1% of its workMathematics: 1 fractional works · 0.3% of its workChemical Engineering: 0 fractional works · 0.3% of its workSocial Sciences: 19 fractional works · 11.8% of its workSocial Sciences: 11 fractional works · 7.1% of its workSociology and Political Science: 7 fractional works · 4.3% of its workEducation: 1 fractional works · 0.8% of its workLaw: 1 fractional works · 0.4% of its workTransportation: 1 fractional works · 0.3% of its workUrban Studies: 1 fractional works · 0.3% of its workPolitical Science and International Relations: 0 fractional works · 0.2% of its workSafety Research: 0 fractional works · 0.2% of its workHealth: 0 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.3% of its workEconomics, Econometrics and Finance: 2 fractional works · 1.5% of its workEconomics and Econometrics: 2 fractional works · 1.4% of its workSmaller subfields together: 0 fractional works · 0.1% of its workPsychology: 2 fractional works · 1.2% of its workDevelopmental and Educational Psychology: 1 fractional works · 0.8% of its workSocial Psychology: 1 fractional works · 0.3% of its workSmaller subfields together: 0 fractional works · 0.1% of its workBusiness, Management and Accounting: 2 fractional works · 1.1% of its workStrategy and Management: 1 fractional works · 0.7% of its workManagement Information Systems: 0 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.2% of its workDecision Sciences: 1 fractional works · 0.6% of its workManagement Science and Operations Research: 1 fractional works · 0.4% of its workStatistics, Probability and Uncertainty: 0 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.0% of its workArts and Humanities: 0 fractional works · 0.2% of its workLife Sciences: 15 fractional works · 9.5% of its workAgricultural and Biological Sciences: 9 fractional works · 5.4% of its workPlant Science: 3 fractional works · 2.0% of its workSoil Science: 1 fractional works · 0.9% of its workGeneral Agricultural and Biological Sciences: 1 fractional works · 0.6% of its workAquatic Science: 1 fractional works · 0.4% of its workEcology, Evolution, Behavior and Systematics: 1 fractional works · 0.4% of its workFood Science: 1 fractional works · 0.3% of its workInsect Science: 1 fractional works · 0.3% of its workSmaller subfields together: 1 fractional works · 0.4% of its workBiochemistry, Genetics and Molecular Biology: 5 fractional works · 3.4% of its workMolecular Biology: 3 fractional works · 1.7% of its workEndocrinology: 1 fractional works · 0.5% of its workGenetics: 1 fractional works · 0.4% of its workCancer Research: 0 fractional works · 0.3% of its workSmaller subfields together: 1 fractional works · 0.5% of its workPharmacology, Toxicology and Pharmaceutics: 0 fractional works · 0.3% of its workPharmaceutical Science: 0 fractional works · 0.3% of its workNeuroscience: 0 fractional works · 0.2% of its workImmunology and Microbiology: 0 fractional works · 0.2% of its workHealth Sciences: 12 fractional works · 7.7% of its workMedicine: 8 fractional works · 5.1% of its workNeurology: 1 fractional works · 0.7% of its workPublic Health, Environmental and Occupational Health: 1 fractional works · 0.6% of its workPhysiology: 1 fractional works · 0.5% of its workInfectious Diseases: 1 fractional works · 0.5% of its workDermatology: 1 fractional works · 0.4% of its workEpidemiology: 1 fractional works · 0.4% of its workPediatrics, Perinatology and Child Health: 0 fractional works · 0.3% of its workRadiology, Nuclear Medicine and Imaging: 0 fractional works · 0.3% of its workOrthopedics and Sports Medicine: 0 fractional works · 0.2% of its workPulmonary and Respiratory Medicine: 0 fractional works · 0.2% of its workSmaller subfields together: 2 fractional works · 1.1% of its workHealth Professions: 2 fractional works · 1.5% of its workGeneral Health Professions: 1 fractional works · 0.6% of its workRadiological and Ultrasound Technology: 1 fractional works · 0.5% of its workSpeech and Hearing: 0 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.3% of its workNursing: 1 fractional works · 0.6% of its workNutrition and Dietetics: 1 fractional works · 0.6% of its workVeterinary: 1 fractional works · 0.5% of its workSmall Animals: 1 fractional works · 0.5% of its workALL ITS WORKEnvironmentalProtection Agency161fractional works, 2022-now
Life Sciences10%Physical Sciences71%Health Sciences8%Social Sciences12%

Each ring splits the one inside it: the four domains of science, their fields, their subfields. Size is fractional works in 2022-now. Every slice is a page; the interactive view zooms down to single topics and colours each by how much more of it this institution does than the world.

Its 4 domains and 25 fields, with their numbers
    1. Environmental Science8753.9%
    2. Earth and Planetary Sciences116.8%
    3. Engineering95.6%
    4. Computer Science21.2%
    5. Chemistry21.1%
    6. Energy20.9%
    7. Materials Science10.9%
    8. Mathematics10.3%
    9. Chemical Engineering00.3%
    1. Social Sciences117.1%
    2. Economics, Econometrics and Finance21.5%
    3. Psychology21.2%
    4. Business, Management and Accounting21.1%
    5. Decision Sciences10.6%
    6. Arts and Humanities00.2%
    1. Agricultural and Biological Sciences95.4%
    2. Biochemistry, Genetics and Molecular Biology53.4%
    3. Pharmacology, Toxicology and Pharmaceutics00.3%
    4. Neuroscience00.2%
    5. Immunology and Microbiology00.2%
    1. Medicine85.1%
    2. Health Professions21.5%
    3. Nursing10.6%
    4. Veterinary10.5%
    5. Dentistry00.0%
All of science, and how each field's share has moved since 1950: the Science domain explorer

What does Environmental Protection Agency specialise in?

Where its research is concentrated relative to its size: Environmental Science takes 10.8× the share of its output that it takes of world research.

  1. Environmental ScienceField · 86.9 works11×
← less than its size predicts1×more →

Location quotient, a volume reading rather than an impact one. It surfaces small, lopsided specialities.

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: 1.13× its world share, 9 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 0.64× its world share, 6 worksBiochemistry, Geneti…Immunology and Microbiology: 0.22× its world share, 0 worksImmunology and Micro…Neuroscience: 0.15× its world share, 0 worksNeurosciencePharmacology, Toxicology and Pharmaceutics: 0.82× its world share, 0 worksPharmacology, Toxico…Chemical Engineering: 0.84× its world share, 0 worksChemical EngineeringChemistry: 0.67× its world share, 2 worksChemistryComputer Science: 0.15× its world share, 2 worksComputer ScienceEarth and Planetary Sciences: 4.32× its world share, 11 worksEarth and Planetary …Energy: 1.03× its world share, 2 worksEnergyEngineering: 0.37× its world share, 9 worksEngineeringEnvironmental Science: 10.85× its world share, 87 worksEnvironmental ScienceMaterials Science: 0.26× its world share, 2 worksMaterials ScienceMathematics: 0.27× its world share, 0 worksMathematicsDentistry: 0.04× its world share, 0 worksDentistryHealth Professions: 0.57× its world share, 2 worksHealth ProfessionsMedicine: 0.26× its world share, 8 worksMedicineNursing: 1.20× its world share, 1 worksNursingVeterinary: 3.54× its world share, 1 worksVeterinaryArts and Humanities: 0.07× its world share, 0 worksArts and HumanitiesBusiness, Management and Accounting: 0.35× its world share, 2 worksBusiness, Management…Decision Sciences: 0.62× its world share, 1 worksDecision SciencesEconomics, Econometrics and Finance: 0.70× its world share, 2 worksEconomics, Econometr…Psychology: 0.41× its world share, 2 worksPsychologySocial Sciences: 0.56× its world share, 12 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Environmental Science, 10.8×. Every wedge is a field page.

All 25 fields, with their numbers
  1. Environmental Science10.85×87 works
  2. Earth and Planetary Sciences4.32×11 works
  3. Veterinary3.54×1 works
  4. Nursing1.20×1 works
  5. Agricultural and Biological Sciences1.13×9 works
  6. Energy1.03×2 works
  7. Chemical Engineering0.84×0 works
  8. Pharmacology, Toxicology and Pharmaceutics0.82×0 works
  9. Economics, Econometrics and Finance0.70×2 works
  10. Chemistry0.67×2 works
  11. Biochemistry, Genetics and Molecular Biology0.64×6 works
  12. Decision Sciences0.62×1 works
  13. Health Professions0.57×2 works
  14. Social Sciences0.56×12 works
  15. Psychology0.41×2 works
  16. Engineering0.37×9 works
  17. Business, Management and Accounting0.35×2 works
  18. Mathematics0.27×0 works
  19. Materials Science0.26×2 works
  20. Medicine0.26×8 works
  21. Immunology and Microbiology0.22×0 works
  22. Neuroscience0.15×0 works
  23. Computer Science0.15×2 works
  24. Arts and Humanities0.07×0 works
  25. Dentistry0.04×0 works

Who are the top researchers at Environmental Protection Agency?

Ranked on the quality score, Sam Adu-Kumi, Julie Kelleher and Denise H. Dumouchelle lead among researchers whose main affiliation is Environmental Protection Agency.

  1. 1 Sam Adu-Kumi Ghana · #1,220,765 worldwide 894 citations · 23 works
  2. 2 Julie Kelleher Ghana · #2,327,638 worldwide 135 citations · 18 works
  3. 3 Denise H. Dumouchelle Ghana · #2,722,204 worldwide 104 citations · 27 works
  4. 4 Jennifer Tully Ghana · #2,755,364 worldwide 377 citations · 18 works
  5. 5 William S. Morrow Ghana · #3,117,045 worldwide 141 citations · 19 works
  6. 6 Catherine A. Fox Ghana · #6,021,095 worldwide 443 citations · 54 works
All ranked researchers at Environmental Protection Agency

What are the most cited papers from Environmental Protection Agency?

The most cited paper from Environmental Protection Agency is "The 2005 World Health Organization Reevaluation of Human and Mammalian Toxic Equivalency Factors for Dioxins and Dioxin-Like Compounds" (Martin van den Berg, Linda S. Birnbaum, Michael S. Denison et al., 2006), with 3,805 citations. Next come "Indicators for Monitoring Biodiversity: A Hierarchical Approach" (3,173) and "Eutrophication of Chesapeake Bay: historical trends and ecological interactions" (1,486).

Most cited papers
#PaperReleasedCitations
1 The 2005 World Health Organization Reevaluation of Human and Mammalian Toxic Equivalency Factors for Dioxins and Dioxin-Like Compounds Martin van den Berg, Linda S. Birnbaum, Michael S. Denison et al. · Toxicological Sciences Open access 7 Jul 2006 3,805
2 Indicators for Monitoring Biodiversity: A Hierarchical Approach Reed F. Noss · Conservation Biology Open access Dec 1990 3,173
3 Eutrophication of Chesapeake Bay: historical trends and ecological interactions WM Kemp, Walter R. Boynton, JE Adolf et al. · Marine Ecology Progress Series Open access 21 Nov 2005 1,486
4 Detection of Poly- and Perfluoroalkyl Substances (PFASs) in U.S. Drinking Water Linked to Industrial Sites, Military Fire Training Areas, and Wastewater Treatment Plants Xindi C. Hu, David Q. Andrews, Andrew B. Lindstrom et al. · Environmental Science & Technology Letters Open access 9 Aug 2016 1,342
5 SETTING EXPECTATIONS FOR THE ECOLOGICAL CONDITION OF STREAMS: THE CONCEPT OF REFERENCE CONDITION John L. Stoddard, David P. Larsen, Charles P. Hawkins et al. · Ecological Applications Open access Aug 2006 1,025
All 60 most cited papers, with filters and sorting

Which keywords describe research at Environmental Protection Agency?

By fractional works in 2022-now, weighted toward what it does more of than the world: Climate Change, Health Effects, Water Quality, Environmental Impact, Eutrophication, Toxicity, Global Warming and Environmental Exposure.

▲ 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-now 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. Climate Change29▲ 6.6×51 topics
  2. Health Effects15▲ 16×18 topics
  3. Water Quality13▲ 20×12 topics
  4. Environmental Impact12▲ 4.2×32 topics
  5. Sustainability9▲ 2.2×28 topics
  6. Eutrophication8▲ 44×4 topics
  7. Toxicity8▲ 11×10 topics
  8. Global Warming7▲ 9.7×11 topics
  9. Oxidative Stress6▲ 2.5×13 topics
  10. Environmental Exposure6▲ 36×3 topics
  11. Global Distribution6▲ 56×2 topics
  12. Public Health6▲ 2.5×16 topics
  13. Wastewater Treatment6▲ 15×7 topics
  14. Remote Sensing6▲ 2.9×18 topics
  15. Renewable Energy6▲ 2.4×19 topics
  16. Bioaccumulation5▲ 35×3 topics
  17. Land Use Change5▲ 10×4 topics
  18. Harmful Algal Blooms5▲ 37×3 topics
  19. Ecosystem Services5▲ 7.6×7 topics
  20. Invasive Species4▲ 6.5×7 topics
  21. Mortality4▲ 4.6×3 topics
  22. Hydrological Modeling4▲ 10×4 topics
  23. Environmental Monitoring4▲ 6.2×9 topics
  24. Global Burden of Disease4▲ 9.4×4 topics
  25. Sediment Transport4▲ 15×4 topics
  26. Microbial Ecology4▲ 13×2 topics
  27. Particulate Matter4▲ 16×2 topics
  28. Pollution4▲ 12×3 topics
  29. Air Pollution4▲ 17×3 topics
  30. Environmental Impacts3▲ 7.7×5 topics
  31. Exposure Pathways3▲ 51×2 topics
  32. Freshwater Biodiversity3▲ 34×2 topics
  33. Polycyclic Aromatic Hydrocarbons3▲ 38×2 topics
  34. Water Resources3▲ 8.5×4 topics
  35. Vulnerability3▲ 8.5×6 topics
  36. Model Evaluation3▲ 15×2 topics
  37. Nutrient Limitation3▲ 17×2 topics
  38. Perfluoroalkyl Substances3▲ 102×1 topic
  39. Polyfluoroalkyl Compounds3▲ 102×1 topic
  40. Drinking Water3▲ 53×2 topics

Which research topics does Environmental Protection Agency publish most on?

By volume in 2022-now: Per- and polyfluoroalkyl substances research, Toxic Organic Pollutants Impact, Soil and Water Nutrient Dynamics and Air Quality and Health Impacts.

Per- and polyfluoroalkyl…3Per- and polyfluoroalkyl substances research: 3 fractional worksToxic Organic Pollutants…3Toxic Organic Pollutants Impact: 3 fractional worksSoil and Water Nutrient Dynamics: 3 fractional worksAir Quality and Health I…3Air Quality and Health Impacts: 3 fractional worksWater Treatment and Disi…3Water Treatment and Disinfection: 3 fractional worksMarine and coastal ecosystems: 3 fractional worksHydrology and Watershed Management Studies: 2 fractional worksAquatic Ecosystems and P…2Aquatic Ecosystems and Phytoplankton Dynamics: 2 fractional worksUrban Stormwater Management Solutions: 2 fractional worksHeavy metals in environment: 2 fractional works
Environmental ChemistryHealth, Toxicology and MutagenesisOceanographyWater Science and Technology2 others

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

  1. 1 Per- and polyfluoroalkyl substances research Environmental Chemistry 3 works
  2. 2 Toxic Organic Pollutants Impact Health, Toxicology and Mutagenesis 3 works
  3. 3 Soil and Water Nutrient Dynamics Environmental Chemistry 3 works
  4. 4 Air Quality and Health Impacts Health, Toxicology and Mutagenesis 3 works
  5. 5 Water Treatment and Disinfection Health, Toxicology and Mutagenesis 3 works
  6. 6 Marine and coastal ecosystems Oceanography 3 works
  7. 7 Hydrology and Watershed Management Studies Water Science and Technology 2 works
  8. 8 Aquatic Ecosystems and Phytoplankton Dynamics Environmental Chemistry 2 works
  9. 9 Urban Stormwater Management Solutions Environmental Engineering 2 works
  10. 10 Heavy metals in environment Pollution 2 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 available34.2%not open65.8%

World: 40% of research is openly available.

with international co-authors77.8%domestic only22.2%

World: 18% is written across borders.

How has Environmental Protection Agency's research output changed?

Output in 2022-2025 was 48% higher than in 2018-2021.

still counting1990200020102020
grewheldshrank

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

Its share of all research

Growing output can still be a shrinking share: all of science grows. This is Environmental Protection Agency as a percentage of every work published that year, 0.00056% in 2024.

still counting0.0020%0.0040%0.0060%Environmental Protection Agency0.00077% in 202519801990200020102020

Fractional works of Environmental Protection Agency over all fractional works that year. How the balance of science has shifted.

How much of it reaches the world top 10%

Year by year, against all institutions in the same year.

still counting10%20%all institutions10.0% in 2025Environmental Protection Agency9.0% in 2025200020102020

Of each year's output, the share that reached the world's 10% most cited for its field and year. Peak 15.4% in 2022.

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Environmental Protection Agency on Science Explorer

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