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Topic · Process Chemistry and Technology

Odor and Emission Control Technologies

Odor and Emission Control Technologies is a research topic within Process Chemistry and Technology. Science Explorer counts 14k research works in it since 1950. 10.2% of them reached the world's top 10% most cited for their field and year.

This cluster of papers covers the chemical and biological technologies for controlling odors, with a focus on managing emissions of hydrogen sulfide, volatile organic compounds, ammonia, and siloxanes. It explores bioreactors, biofiltration, microbial communities, and concrete corrosion in sewer systems and waste gas treatment. The papers also discuss the sulfur cycle, odor measurements, health risk assessment, and environmental impacts.

  • Odor Control
  • Bioreactors
  • Sulfur Cycle
  • Volatile Organic Compounds
  • Ammonia Emissions
  • Siloxanes
  • Biofiltration
  • Concrete Corrosion
  • Microbial Community
  • Waste Gas Treatment
Research works
14k
fractional, since 1950
In the world top 10%
1.4k
per year above
Top-10% rate
10.2%
share of its works in the world top 10%
Growth, 2018-21 → 2022-25
-2%
the tick is no change
Largest producer
China
43% of the 10 largest, 2022-now
Odor and Emission Control Technologies

Which countries lead Odor and Emission Control Technologies research?

By volume, China and the United States publish the most (573 and 255 works in 2022-now).

By volume, 2022-now

  1. 1 China 573 works
  2. 2 United States 255 works
  3. 3 South Korea 89 works
  4. 4 France 70 works
  5. 5 Italy 69 works
  6. 6 Spain 64 works
  7. 7 India 58 works
  8. 8 Japan 55 works
  9. 9 Canada 55 works
  10. 10 Germany 52 works

How concentrated that is

The same countries as shares of everything the list above accounts for. A node where two countries do two thirds of the work and one spread evenly across twelve read alike as a ranking and not at all alike here.

China: 42.8%United States: 19.0%South Korea: 6.7%France: 5.2%6 others listed: 26.4%43%largest
China573 · 42.8%United States255 · 19.0%South Korea89 · 6.7%France70 · 5.2%6 others listed353 · 26.4%

Shares of the rows listed above, not of the whole node.

Which institutions lead Odor and Emission Control Technologies research?

By volume in 2022-now, Chinese Academy of Sciences publishes the most Odor and Emission Control Technologies research, followed by Aarhus University and Wageningen University & Research.

By volume, 2022-now

  1. 1 Chinese Academy of SciencesChina 38 works
  2. 2 Aarhus UniversityDenmark 19 works
  3. 3 Wageningen University & ResearchNetherlands 16 works
  4. 4 Chinese Academy of Agricultural SciencesChina 14 works
  5. 5 Beijing University of TechnologyChina 14 works
  6. 6 Tongji UniversityChina 13 works
  7. 7 Institut National de Recherche pour l'Agriculture, l'Alimentation et l'EnvironnementFrance 13 works
  8. 8 Centre National de la Recherche ScientifiqueFrance 13 works
  9. 9 Tsinghua UniversityChina 11 works
  10. 10 Harbin Institute of TechnologyChina 10 works

Who are the leading researchers in Odor and Emission Control Technologies?

The most-cited researchers publishing on Odor and Emission Control Technologies include Rob Knight, Lídia Morawska and Philippe Ciais.

  1. 1 Rob Knight United States 468k citations
  2. 2 Lídia Morawska Australia 244k citations
  3. 3 Philippe Ciais France 237k citations
  4. 4 Guangming Zeng China 204k citations
  5. 5 Michelle Lee Bell United States 197k citations
  6. 6 Michael D Brauer Canada 187k citations

Ranked by citations received across their whole record, among researchers with at least three works on this topic.

What are the most cited papers in Odor and Emission Control Technologies?

The most cited paper in Odor and Emission Control Technologies is "Methane emissions from cattle" (Kristen Johnson, Donald E. Johnson, 1995), with 2,745 citations. Next come "Formaldehyde in the Indoor Environment" (1,800) and "An absorption model of gas/particle partitioning of organic compounds in the atmosphere" (1,653).

Most cited papers
#PaperReleasedCitations
1 Methane emissions from cattle Kristen Johnson, Donald E. Johnson · Journal of Animal Science Aug 1995 2,745
2 Formaldehyde in the Indoor Environment Tunga Salthammer, Sibel Menteşe, Rainer MARUTZKY · Chemical Reviews ReviewOpen access 12 Jan 2010 1,800
3 An absorption model of gas/particle partitioning of organic compounds in the atmosphere James F. Pankow · Atmospheric Environment 1994 1,653
4 Bioremediation techniques–classification based on site of application: principles, advantages, limitations and prospects Christopher Chibueze Azubuike, Chioma Blaise Chikere, G. C. Okpokwasili · World Journal of Microbiology and Biotechnology Open access 16 Sep 2016 1,400
5 A life-cycle assessment of Portland cement manufacturing: comparing the traditional process with alternative technologies D. N. Huntzinger, Thomas D. Eatmon · Journal of Cleaner Production 3 Jul 2008 1,390
All 100 most cited papers, with filters and sorting

Where is Odor and Emission Control Technologies research done?

The largest centres of Odor and Emission Control Technologies research in 2022-now are Beijing (China), Shanghai (China), Seoul (South Korea) and Guangzhou (China). Among places with at least 20 works in it, it is an unusually large share of all research in Aarhus.

Largest cities, 2022-now

  1. 1 BeijingChina 158 works
  2. 2 ShanghaiChina 34 works
  3. 3 SeoulSouth Korea 30 works
  4. 4 GuangzhouChina 29 works
  5. 5 NanjingChina 29 works
  6. 6 HangzhouChina 26 works
  7. 7 TianjinChina 25 works
  8. 8 AarhusDenmark 20 works
  9. 9 ParisFrance 18 works
  10. 10 MilanItaly 18 works

Where it is the local speciality

  1. AarhusDK · 20.0 works11×
← less than its size predicts1×more →

Location quotient: how much more of its research is in Odor and Emission Control Technologies than the world average.

See Odor and Emission Control Technologies on the map

Where is the best place to study Odor and Emission Control Technologies?

Among universities, judged by research, Wageningen University & Research, Tongji University and Aarhus University score highest, combining excellence, specialisation, size, growth and international reach. Research strength is one signal when choosing where to study; it does not measure teaching.

0%10%20%30%mean 16.84%fractional works in this field (log) →share of work in the world top 10% →Tongji UniversityUniversidad de Valla…Wageningen Universit…Aarhus University
above the meannear itbelow it

One dot per university in the first ten of the table below, at the default weights. The upper left is the interesting corner: small places doing unusually strong work.

Excellenceshare of its work in the world top 10%, 2022-now and all time averaged
40%
Specialisationhow much of its work is in this field, counted up to 10× the world share
10%
Sizeits output in this field, on a log scale
30%
Growthoutput growth, counted from -20% to +20%
10%
Internationalshare of its work with a co-author abroad
10%
Each slider sets a weight; the share it gets of the score is beside it.
#UniversityScoreTop 10%SpecialisationWorksGrowth
1Wageningen University & ResearchNetherlands 78.711.7%25.7×16 +44.6%
2Tongji UniversityChina 72.625.1%5.0×13 +42.1%
3Aarhus UniversityDenmark 69.89.3%12.5×19 +8.2%
4Universidad de ValladolidSpain 62.019.7%16.3×8 +62.5%
5Tianjin UniversityChina 60.728.3%4.8×10 +35.6%
6Beijing University of TechnologyChina 56.113.5%11.6×14 +120.7%
7Technical University of DenmarkDenmark 52.914.4%9.9×9 +13.7%
8Tsinghua UniversityChina 48.321.2%2.7×11 +3.8%
9Harbin Institute of TechnologyChina 38.212.5%3.6×10 +160.9%
10University of Chinese Academy of SciencesChina 35.412.7%3.3×10 +2.8%

Universities only. The score blends excellence (40%), size (30%), specialisation (10%), growth (10%), international reach (10%), 2022-now; growth compares 2018-21 with 2022-25 and counts up to +20%, since a jump from a small base is mostly noise.

Every institution in Odor and Emission Control Technologies, country by country

Is Odor and Emission Control Technologies research growing?

Output in 2022-2025 was 2% lower than in 2018-2021, peaking in 2025.

still counting19801990200020102020
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 Odor and Emission Control Technologies as a percentage of every work published that year, 0.0076% in 2024.

still counting0.010%0.020%0.030%Odor and Emission Control Technologies0.0080% in 202519801990200020102020

Fractional works of Odor and Emission Control Technologies 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.

still counting5%10%15%Odor and Emission Control Technologies10.3% in 2025200020102020

Of each year's works in it, the share that reached the world's 10% most cited for their field and year. A field is the world for its own topics, so there is no other line to hold it against.

Which topics inside it are moving

Growth and decline on one axis around a shared zero. Two lists side by side hide the thing that matters: whether the growth dwarfs the decline, or the other way round.

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