Science Explorer Back to mapMap
Discussion
Topic · Health, Toxicology and Mutagenesis

Chemical Analysis and Environmental Impact

Chemical Analysis and Environmental Impact is a research topic within Health, Toxicology and Mutagenesis. Science Explorer counts 7.6k research works in it since 1950. 10.1% of them reached the world's top 10% most cited for their field and year.

This cluster of papers focuses on the environmental contamination, health effects, and microbial reduction of perchlorate, a widespread environmental pollutant known to inhibit thyroidal radioiodine uptake in humans. The papers cover topics such as perchlorate levels in various sources, its impact on thyroid function, water treatment technologies, and bioremediation methods.

  • Perchlorate
  • Thyroid
  • Contamination
  • Health Effects
  • Environmental
  • Microbial Reduction
  • Water Treatment
  • Iodide Uptake
  • Bioremediation
  • Exposure
Research works
7.6k
fractional, since 1950
In the world top 10%
773
per year above
Top-10% rate
10.1%
share of its works in the world top 10%
Growth, 2018-21 → 2022-25
+32%
the tick is no change
Largest producer
China
44% of the 10 largest, 2022-now
Chemical Analysis and Environmental Impact

Which countries lead Chemical Analysis and Environmental Impact research?

By volume, China and the United States publish the most (331 and 193 works in 2022-now).

By volume, 2022-now

  1. 1 China 331 works
  2. 2 United States 193 works
  3. 3 India 56 works
  4. 4 Germany 30 works
  5. 5 Japan 29 works
  6. 6 France 26 works
  7. 7 Spain 25 works
  8. 8 Russia 25 works
  9. 9 Brazil 23 works
  10. 10 Canada 22 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: 43.6%United States: 25.4%India: 7.3%Germany: 4.0%6 others listed: 19.7%44%largest
China331 · 43.6%United States193 · 25.4%India56 · 7.3%Germany30 · 4.0%6 others listed150 · 19.7%

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

Which institutions lead Chemical Analysis and Environmental Impact research?

By volume in 2022-now, Chinese Academy of Sciences publishes the most Chemical Analysis and Environmental Impact research, followed by Tongji University and Centre National de la Recherche Scientifique.

By volume, 2022-now

  1. 1 Chinese Academy of SciencesChina 21 works
  2. 2 Tongji UniversityChina 11 works
  3. 3 Centre National de la Recherche ScientifiqueFrance 10 works
  4. 4 Russian Academy of SciencesRussia 8 works
  5. 5 Sun Yat-sen UniversityChina 6 works
  6. 6 Zhejiang UniversityChina 6 works
  7. 7 Consejo Superior de Investigaciones CientíficasSpain 5 works
  8. 8 Shanghai Jiao Tong UniversityChina 5 works
  9. 9 Harbin Institute of TechnologyChina 5 works
  10. 10 Huazhong University of Science and TechnologyChina 5 works

Who are the leading researchers in Chemical Analysis and Environmental Impact?

The most-cited researchers publishing on Chemical Analysis and Environmental Impact include John C. Morris, Guangming Zeng and Barry B. Halliwell.

  1. 1 John C. Morris United States 241k citations
  2. 2 Guangming Zeng China 204k citations
  3. 3 Barry B. Halliwell United Kingdom 179k 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 Chemical Analysis and Environmental Impact?

The most cited paper in Chemical Analysis and Environmental Impact is "Pharmaceuticals, Hormones, and Other Organic Wastewater Contaminants in U.S. Streams, 1999−2000: A National Reconnaissance" (Dana W. Kolpin, Edward T. Furlong, Michael T. Meyer et al., 2002), with 7,962 citations. Next come "How a century of ammonia synthesis changed the world" (4,691) and "Endocrine-Disrupting Chemicals: An Endocrine Society Scientific Statement" (4,582).

Most cited papers
#PaperReleasedCitations
1 Pharmaceuticals, Hormones, and Other Organic Wastewater Contaminants in U.S. Streams, 1999−2000: A National Reconnaissance Dana W. Kolpin, Edward T. Furlong, Michael T. Meyer et al. · Environmental Science & Technology Mar 2002 7,962
2 How a century of ammonia synthesis changed the world Jan Willem Erisman, Mark A. Sutton, James N. Galloway et al. · Nature Geoscience 28 Sep 2008 4,691
3 Endocrine-Disrupting Chemicals: An Endocrine Society Scientific Statement Evanthia Diamanti‐Kandarakis, Jean‐Pierre Bourguignon, Linda C. Giudice et al. · Endocrine Reviews Open access Jun 2009 4,582
4 Fluorometric Deoxyribonucleic Acid-Deoxyribonucleic Acid Hybridization in Microdilution Wells as an Alternative to Membrane Filter Hybridization in which Radioisotopes Are Used To Determine Genetic Relatedness among Bacterial Strains T. EZAKI, Yohey Hashimoto, Eiko Yabuuchi · International Journal of Systematic Bacteriology Jul 1989 3,269
5 Pharmaceuticals of Emerging Concern in Aquatic Systems: Chemistry, Occurrence, Effects, and Removal Methods Manvendra Patel, Rahul Kumar, Kamal Kishor et al. · Chemical Reviews ReviewOpen access 4 Mar 2019 2,639
All 98 most cited papers, with filters and sorting

Where is Chemical Analysis and Environmental Impact research done?

The largest centres of Chemical Analysis and Environmental Impact research in 2022-now are Beijing (China), Nanjing (China), Shanghai (China) and Wuhan (China). Among places with at least 20 works in it, it is an unusually large share of all research in Nanjing and Beijing.

Largest cities, 2022-now

  1. 1 BeijingChina 66 works
  2. 2 NanjingChina 32 works
  3. 3 ShanghaiChina 21 works
  4. 4 WuhanChina 17 works
  5. 5 GuangzhouChina 16 works
  6. 6 HangzhouChina 13 works
  7. 7 Xi'anChina 12 works
  8. 8 Washington D.C.United States 11 works
  9. 9 MoscowRussia 10 works
  10. 10 TianjinChina 10 works

Where it is the local speciality

  1. NanjingCN · 31.7 works3.2×
  2. BeijingCN · 65.7 works1.9×
← less than its size predicts1×more →

Location quotient: how much more of its research is in Chemical Analysis and Environmental Impact than the world average.

See Chemical Analysis and Environmental Impact on the map

Where is the best place to study Chemical Analysis and Environmental Impact?

Among universities, judged by research, Tongji 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.

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
1Tongji UniversityChina 10.08.3%8.2×11 +97.8%

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 Chemical Analysis and Environmental Impact, country by country

Is Chemical Analysis and Environmental Impact research growing?

Output in 2022-2025 was 32% higher than in 2018-2021, peaking in 2025. The fastest-growing topics are Chemical Analysis and Environmental Impact.

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 Chemical Analysis and Environmental Impact as a percentage of every work published that year, 0.0044% in 2024.

still counting0.010%0.020%0.030%Chemical Analysis and Environmental Impact0.0045% in 202519801990200020102020

Fractional works of Chemical Analysis and Environmental Impact 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%Chemical Analysis and Environmental Impact10.4% 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.

Discussion

Ask a question or share a note about Chemical Analysis and Environmental Impact. Posts are plain text and can be reported.