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Government institution · Sacramento · United States

California Air Resources Board

In research, California Air Resources Board stands highest in Physical Sciences (#3,257 of 17,446 worldwide) and Environmental Science (#1,374 of 5,407 worldwide), over all time.

arb.ca.govROR OpenAlex
World rank, all time
#9,787
of 34,923
Rank in United States
#2,023
of 7,310
Research works
424
▼ 9% vs 2018-21
Citations
15k
35.7 per fractional work
Top-10% rate
10.5%
all institutions 10.0%
vs its own fields
1.11×
1.00× is exactly expected
Open access
31%
world 40%
International
12%
world 18%
California Air Resources Board

What is California Air Resources Board 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
Physical SciencesDomain #3,257 of 17,446 11.8%365
Environmental ScienceField #1,374 of 5,407 12.2%160

Each strip is that field's whole ranked pool, with the notch where California Air Resources Board 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 California Air Resources Board work in?

In 2022-now, 76% of research at California Air Resources Board is in Physical Sciences, 13% in Health Sciences. Its largest fields are Environmental Science (35%), Engineering (21%), Earth and Planetary Sciences (13%). It does 1.8× the world's share of Physical Sciences.

Physical Sciences: 39 fractional works · 75.8% of its workEnvironmental Science: 18 fractional works · 35.1% of its workHealth, Toxicology and Mutagenesis: 6 fractional works · 12.2% of its workEnvironmental Engineering: 5 fractional works · 8.7% of its workGlobal and Planetary Change: 4 fractional works · 8.0% of its workPollution: 1 fractional works · 2.0% of its workEcology: 1 fractional works · 1.1% of its workManagement, Monitoring, Policy and Law: 1 fractional works · 1.1% of its workWater Science and Technology: 1 fractional works · 1.1% of its workEnvironmental Chemistry: 0 fractional works · 0.8% of its workEngineering: 11 fractional works · 21.4% of its workAutomotive Engineering: 7 fractional works · 13.4% of its workElectrical and Electronic Engineering: 1 fractional works · 2.8% of its workBiomedical Engineering: 1 fractional works · 1.4% of its workSafety, Risk, Reliability and Quality: 0 fractional works · 0.8% of its workBuilding and Construction: 0 fractional works · 0.6% of its workOcean Engineering: 0 fractional works · 0.5% of its workAerospace Engineering: 0 fractional works · 0.5% of its workMechanics of Materials: 0 fractional works · 0.4% of its workMechanical Engineering: 0 fractional works · 0.3% of its workCivil and Structural Engineering: 0 fractional works · 0.2% of its workComputational Mechanics: 0 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.1% of its workEarth and Planetary Sciences: 7 fractional works · 13.3% of its workAtmospheric Science: 6 fractional works · 11.7% of its workGeochemistry and Petrology: 0 fractional works · 0.4% of its workGeology: 0 fractional works · 0.3% of its workGeophysics: 0 fractional works · 0.3% of its workOceanography: 0 fractional works · 0.3% of its workEarth-Surface Processes: 0 fractional works · 0.2% of its workEnergy: 2 fractional works · 3.5% of its workRenewable Energy, Sustainability and the Environment: 2 fractional works · 2.9% of its workEnergy Engineering and Power Technology: 0 fractional works · 0.5% of its workChemical Engineering: 1 fractional works · 1.2% of its workFluid Flow and Transfer Processes: 0 fractional works · 0.5% of its workProcess Chemistry and Technology: 0 fractional works · 0.4% of its workCatalysis: 0 fractional works · 0.3% of its workComputer Science: 0 fractional works · 0.6% of its workArtificial Intelligence: 0 fractional works · 0.6% of its workMaterials Science: 0 fractional works · 0.6% of its workBiomaterials: 0 fractional works · 0.4% of its workSmaller subfields together: 0 fractional works · 0.2% of its workChemistry: 0 fractional works · 0.1% of its workMathematics: 0 fractional works · 0.1% of its workHealth Sciences: 7 fractional works · 12.8% of its workMedicine: 5 fractional works · 9.8% of its workEpidemiology: 1 fractional works · 1.7% of its workPharmacology: 1 fractional works · 1.6% of its workPulmonary and Respiratory Medicine: 1 fractional works · 1.6% of its workEmergency Medicine: 0 fractional works · 0.8% of its workCardiology and Cardiovascular Medicine: 0 fractional works · 0.6% of its workDermatology: 0 fractional works · 0.6% of its workNeurology: 0 fractional works · 0.6% of its workRadiology, Nuclear Medicine and Imaging: 0 fractional works · 0.6% of its workPhysiology: 0 fractional works · 0.5% of its workSurgery: 0 fractional works · 0.5% of its workPediatrics, Perinatology and Child Health: 0 fractional works · 0.3% of its workSmaller subfields together: 0 fractional works · 0.2% of its workHealth Professions: 2 fractional works · 3.0% of its workGeneral Health Professions: 1 fractional works · 1.4% of its workSpeech and Hearing: 1 fractional works · 1.1% of its workOccupational Therapy: 0 fractional works · 0.2% of its workRadiological and Ultrasound Technology: 0 fractional works · 0.2% of its workSocial Sciences: 3 fractional works · 6.1% of its workSocial Sciences: 2 fractional works · 3.2% of its workTransportation: 1 fractional works · 1.3% of its workSociology and Political Science: 0 fractional works · 0.9% of its workEducation: 0 fractional works · 0.4% of its workCultural Studies: 0 fractional works · 0.3% of its workGender Studies: 0 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.2% of its workEconomics, Econometrics and Finance: 0 fractional works · 0.8% of its workEconomics and Econometrics: 0 fractional works · 0.8% of its workPsychology: 0 fractional works · 0.7% of its workSocial Psychology: 0 fractional works · 0.3% of its workExperimental and Cognitive Psychology: 0 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.2% of its workArts and Humanities: 0 fractional works · 0.5% of its workVisual Arts and Performing Arts: 0 fractional works · 0.3% of its workArcheology: 0 fractional works · 0.2% of its workDecision Sciences: 0 fractional works · 0.5% of its workStatistics, Probability and Uncertainty: 0 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.3% of its workBusiness, Management and Accounting: 0 fractional works · 0.3% of its workStrategy and Management: 0 fractional works · 0.3% of its workLife Sciences: 3 fractional works · 5.3% of its workBiochemistry, Genetics and Molecular Biology: 2 fractional works · 3.2% of its workMolecular Biology: 1 fractional works · 1.2% of its workGenetics: 0 fractional works · 1.0% of its workEndocrinology: 0 fractional works · 0.6% of its workCancer Research: 0 fractional works · 0.3% of its workAgricultural and Biological Sciences: 1 fractional works · 1.8% of its workPlant Science: 0 fractional works · 0.8% of its workForestry: 0 fractional works · 0.3% of its workInsect Science: 0 fractional works · 0.3% of its workSoil Science: 0 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.1% of its workNeuroscience: 0 fractional works · 0.3% of its workCellular and Molecular Neuroscience: 0 fractional works · 0.3% of its workALL ITS WORKCalifornia AirResources Board52fractional works, 2022-now
Life Sciences5%Physical Sciences76%Health Sciences13%Social Sciences6%

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 20 fields, with their numbers
    1. Environmental Science1835.1%
    2. Engineering1121.4%
    3. Earth and Planetary Sciences713.3%
    4. Energy23.5%
    5. Chemical Engineering11.2%
    6. Computer Science00.6%
    7. Materials Science00.6%
    8. Chemistry00.1%
    9. Mathematics00.1%
    1. Medicine59.8%
    2. Health Professions23.0%
    1. Social Sciences23.2%
    2. Economics, Econometrics and Finance00.8%
    3. Psychology00.7%
    4. Arts and Humanities00.5%
    5. Decision Sciences00.5%
    6. Business, Management and Accounting00.3%
    1. Biochemistry, Genetics and Molecular Biology23.2%
    2. Agricultural and Biological Sciences11.8%
    3. Neuroscience00.3%
All of science, and how each field's share has moved since 1950: the Science domain explorer

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: 0.38× its world share, 1 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 0.60× its world share, 2 worksBiochemistry, Geneti…Neuroscience: 0.20× its world share, 0 worksNeuroscienceChemical Engineering: 3.53× its world share, 1 worksChemical EngineeringChemistry: 0.08× its world share, 0 worksChemistryComputer Science: 0.08× its world share, 0 worksComputer ScienceEarth and Planetary Sciences: 8.48× its world share, 7 worksEarth and Planetary …Energy: 3.76× its world share, 2 worksEnergyEngineering: 1.42× its world share, 11 worksEngineeringEnvironmental Science: 7.06× its world share, 18 worksEnvironmental ScienceMaterials Science: 0.16× its world share, 0 worksMaterials ScienceMathematics: 0.08× its world share, 0 worksMathematicsHealth Professions: 1.12× its world share, 2 worksHealth ProfessionsMedicine: 0.51× its world share, 5 worksMedicineArts and Humanities: 0.19× its world share, 0 worksArts and HumanitiesBusiness, Management and Accounting: 0.10× its world share, 0 worksBusiness, Management…Decision Sciences: 0.56× its world share, 0 worksDecision SciencesEconomics, Econometrics and Finance: 0.37× its world share, 0 worksEconomics, Econometr…Psychology: 0.23× its world share, 0 worksPsychologySocial Sciences: 0.25× its world share, 2 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Earth and Planetary Sciences, 8.5×. Every wedge is a field page.

All 20 fields, with their numbers
  1. Earth and Planetary Sciences8.48×7 works
  2. Environmental Science7.06×18 works
  3. Energy3.76×2 works
  4. Chemical Engineering3.53×1 works
  5. Engineering1.42×11 works
  6. Health Professions1.12×2 works
  7. Biochemistry, Genetics and Molecular Biology0.60×2 works
  8. Decision Sciences0.56×0 works
  9. Medicine0.51×5 works
  10. Agricultural and Biological Sciences0.38×1 works
  11. Economics, Econometrics and Finance0.37×0 works
  12. Social Sciences0.25×2 works
  13. Psychology0.23×0 works
  14. Neuroscience0.20×0 works
  15. Arts and Humanities0.19×0 works
  16. Materials Science0.16×0 works
  17. Business, Management and Accounting0.10×0 works
  18. Chemistry0.08×0 works
  19. Computer Science0.08×0 works
  20. Mathematics0.08×0 works

Who are the top researchers at California Air Resources Board?

Ranked on the quality score, Jorn Dinh Herner, Paul L. Rieger and Hector Maldonado lead among researchers whose main affiliation is California Air Resources Board.

  1. 1 Jorn Dinh Herner United States · #426,415 worldwide 3.1k citations · 72 works
  2. 2 Paul L. Rieger United States · #608,643 worldwide 1.7k citations · 37 works
  3. 3 Hector Maldonado United States · #740,660 worldwide 1.7k citations · 27 works
  4. 4 Tao Huai United States · #860,412 worldwide 2.2k citations · 48 works
  5. 5 Bart E. Croes United States · #892,100 worldwide 1.8k citations · 48 works
  6. 6 Ying‐Kuang Hsu United States · #1,025,187 worldwide 1.3k citations · 15 works
  7. 7 Satya Brata Sardar United States · #1,047,284 worldwide 1.3k citations · 16 works
  8. 8 Cynthia Garcia United States · #1,104,515 worldwide 1.5k citations · 24 works
  9. 9 Karen L. Magliano United States · #1,119,427 worldwide 1.3k citations · 19 works
  10. 10 Chenxia Cai United States · #1,145,586 worldwide 1k citations · 32 works
All ranked researchers at California Air Resources Board

What are the most cited papers from California Air Resources Board?

The most cited paper from California Air Resources Board is "The Effect of Air Pollution on Lung Development from 10 to 18 Years of Age" (W. James Gauderman, Edward L. Avol, Frank D. Gilliland et al., 2004), with 1,458 citations. Next come "PEM Fuel cell and electrolysis cell technologies and hydrogen infrastructure development – a review" (819) and "Asthma in exercising children exposed to ozone: a cohort study" (800).

Most cited papers
#PaperReleasedCitations
1 The Effect of Air Pollution on Lung Development from 10 to 18 Years of Age W. James Gauderman, Edward L. Avol, Frank D. Gilliland et al. · New England Journal of Medicine Open access 8 Sep 2004 1,458
2 PEM Fuel cell and electrolysis cell technologies and hydrogen infrastructure development – a review Yun Wang, Yiheng Pang, Hui Xu et al. · Energy & Environmental Science 2022 819
3 Asthma in exercising children exposed to ozone: a cohort study Rob McConnell, Kiros T Berhane, Frank D. Gilliland et al. · The Lancet Feb 2002 800
4 Descriptive analysis of PM2.5 and PM10 at regionally representative locations during SJVAQS/AUSPEX Judith C. Chow, John G. Watson, Zhiqiang Lu et al. · Atmospheric Environment Jun 1996 591
5 Diesel Engines: Environmental Impact and Control Alan C. Lloyd, Thomas A. Cackette · Journal of the Air & Waste Management Association Open access Jun 2001 505
All 60 most cited papers, with filters and sorting

Which keywords describe research at California Air Resources Board?

By fractional works in 2022-now, weighted toward what it does more of than the world: Health Effects, Particulate Matter, Air Quality, Fuel Consumption, Air Pollution, Cardiovascular Disease, Global Burden of Disease and Oxidative Stress.

▲ 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. Health Effects8▲ 24×10 topics
  2. Particulate Matter7▲ 94×2 topics
  3. Air Quality6▲ 62×5 topics
  4. Fuel Consumption6▲ 159×2 topics
  5. Air Pollution6▲ 87×2 topics
  6. Cardiovascular Disease6▲ 9.4×3 topics
  7. Oxidative Stress6▲ 6.5×4 topics
  8. Global Burden of Disease5▲ 41×2 topics
  9. Climate Change5▲ 3.7×26 topics
  10. Mortality5▲ 17×2 topics
  11. Eco-Driving5▲ 198×1 topic
  12. Exposure Assessment5▲ 106×1 topic
  13. Fine Particulate Air Pollution5▲ 106×1 topic
  14. Vehicle Emissions5▲ 198×1 topic
  15. Environmental Impact4▲ 4.8×15 topics
  16. Atmospheric Aerosols4▲ 136×1 topic
  17. Black Carbon4▲ 136×1 topic
  18. Emissions3▲ 33×5 topics
  19. Sustainability3▲ 2.6×11 topics
  20. Machine Learning3▲ 1.60×5 topics
  21. Remote Sensing3▲ 4.3×12 topics
  22. Electric Vehicles3▲ 17×3 topics
  23. Satellite Observations2▲ 49×3 topics
  24. Water Quality2▲ 12×5 topics
  25. Forecasting2▲ 23×2 topics
  26. IoT2▲ 12×2 topics
  27. Neural Networks2▲ 2.9×2 topics
  28. Air Quality Monitoring2▲ 75×1 topic
  29. Environmental Monitoring2▲ 11×2 topics
  30. Low-Cost Sensors2▲ 75×1 topic
  31. Carbon Dioxide2▲ 23×2 topics
  32. Methane2▲ 70×1 topic
  33. Shale Gas2▲ 27×1 topic
  34. Greenhouse Gas Emissions2▲ 11×3 topics
  35. Global Warming1▲ 6.2×5 topics
  36. Battery Management Systems1▲ 16×1 topic
  37. Boundary Layer1▲ 18×2 topics
  38. Life Cycle Assessment1▲ 8.3×3 topics
  39. Lithium-ion Batteries1▲ 5.7×1 topic
  40. Data Assimilation1▲ 13×2 topics

Which research topics does California Air Resources Board publish most on?

By volume in 2022-now: Air Quality and Health Impacts, Vehicle emissions and performance, Atmospheric chemistry and aerosols and Air Quality Monitoring and Forecasting.

Air Quality and Health I…5Air Quality and Health Impacts: 5 fractional worksVehicle emissions and pe…5Vehicle emissions and performance: 5 fractional worksAtmospheric chemistry and aerosols: 4 fractional worksAir Quality Monitoring a…2Air Quality Monitoring and Forecasting: 2 fractional worksAtmospheric and Environm…2Atmospheric and Environmental Gas Dynamics: 2 fractional worksAdvanced Battery Technol…1Advanced Battery Technologies Research: 1 fractional worksElectric Vehicles and Infrastructure: 1 fractional worksMaritime Transport Emissions and Efficiency: 1 fractional worksAtmospheric Ozone and Climate: 1 fractional worksEnergy, Environment, and Transportation Policies: 1 fractional works
Health, Toxicology and MutagenesisAutomotive EngineeringAtmospheric ScienceEnvironmental Engineering3 others

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

  1. 1 Air Quality and Health Impacts Health, Toxicology and Mutagenesis 5 works
  2. 2 Vehicle emissions and performance Automotive Engineering 5 works
  3. 3 Atmospheric chemistry and aerosols Atmospheric Science 4 works
  4. 4 Air Quality Monitoring and Forecasting Environmental Engineering 2 works
  5. 5 Atmospheric and Environmental Gas Dynamics Global and Planetary Change 2 works
  6. 6 Advanced Battery Technologies Research Automotive Engineering 1 works
  7. 7 Electric Vehicles and Infrastructure Electrical and Electronic Engineering 1 works
  8. 8 Maritime Transport Emissions and Efficiency Environmental Engineering 1 works
  9. 9 Atmospheric Ozone and Climate Atmospheric Science 1 works
  10. 10 Energy, Environment, and Transportation Policies Renewable Energy, Sustainability and the Environment 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 available30.9%not open69.1%

World: 40% of research is openly available.

with international co-authors12.4%domestic only87.6%

World: 18% is written across borders.

How has California Air Resources Board's research output changed?

Output in 2022-2025 was 9% lower 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 California Air Resources Board as a percentage of every work published that year, 0.00021% in 2024.

still counting0.0010%0.0020%0.0030%California Air Resources Board0.00018% in 202519801990200020102020

Fractional works of California Air Resources Board over all fractional works that year. How the balance of science has shifted.

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California Air Resources Board on Science Explorer

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