Subject Rankings

US Environmental Protection Agency Subject Rankings 2025

Agriculture and Forestry, Architecture and Design, Business and Management, Economics and Econometrics, Education, Engineering and Technology, History, Philosophy, Theology, Law, Medicine and Health Sciences, Natural Sciences, Social Sciences, Art and Humanities Rankings and Social Sciences and Humanities Rankings along with their 197 sub-branches, can be analyzed at global, national, and regional levels. You can also evaluate them based on the i10 index and citation numbersAs of Sep 18, 2024, rankings are according to the Total H Index. BETA VERSION: The subject field rankings for the world, regions, countries, and universities are currently in beta. This is due to the exclusion of (1.014.193) scientists categorized under 'others,' whose profiles cannot yet be determined, edited, or classified. As these fields are updated, the rankings will adjust accordingly. Please keep this in mind. See Also: [University Subject Rankings]

* Total H IndexRankings
Ranking Based On Selection :51
Endalkachew Sahle-Demessie
Nanotechnolgy
water pollution
green chemistry
Metrics
H-Index
i10 Index
Citation Counts
40
105
4,893
* Total H IndexRankings
Ranking Based On Selection :52
Michael F Hughes
toxicokinetics
toxicology
metals
in vitro
Metrics
H-Index
i10 Index
Citation Counts
40
81
9,303
* Total H IndexRankings
Ranking Based On Selection :53
Carl F Blackman
bioelectromagnetics
electromagnetic fields
magnetic fields
biological effects
Metrics
H-Index
i10 Index
Citation Counts
40
66
5,997
* Total H IndexRankings
Ranking Based On Selection :54
Christopher G Nolte
Air Quality
Climate Change
Regional Climate Modeling
Metrics
H-Index
i10 Index
Citation Counts
39
59
6,107
* Total H IndexRankings
Ranking Based On Selection :56
Cathleen Wigand
wetland ecology
climate adaptation
eutrophication
salt marshes
Metrics
H-Index
i10 Index
Citation Counts
39
66
4,490
* Total H IndexRankings
Ranking Based On Selection :57
Jesse Bash
Biosphere-Atmosphere Interactions
Air-Quality
Climate Change
Biogeochemistry
Nitrogen
Metrics
H-Index
i10 Index
Citation Counts
38
62
4,908
* Total H IndexRankings
Ranking Based On Selection :58
Chandra Giri
Global Land Cover
Remote Sensing
Global mangrove monitoring
Metrics
H-Index
i10 Index
Citation Counts
38
59
12,506
* Total H IndexRankings
Ranking Based On Selection :59
Jon R Sobus
Exposure Science
Biomonitoring
Non-targeted Analysis
Metrics
H-Index
i10 Index
Citation Counts
38
77
4,262
* Total H IndexRankings
Ranking Based On Selection :60
John Darling
invasive species
population genetics
conservation biology
coastal ecology
Metrics
H-Index
i10 Index
Citation Counts
38
53
5,978
* Total H IndexRankings
Ranking Based On Selection :61
Robert W Pinder
Environmental Science
Air Quality
Climate Change
Metrics
H-Index
i10 Index
Citation Counts
38
47
6,173
* Total H IndexRankings
Ranking Based On Selection :62
Tony Olsen
environmental statistics
spatial survey design
statistical graphics
Metrics
H-Index
i10 Index
Citation Counts
38
80
7,205
* Total H IndexRankings
Ranking Based On Selection :63
Paul Solomon|Paul Solomon, P.A. Solomon
Air quality
Measurements at local & regional scales
mobile meas.
Field and lab methods
Metrics
H-Index
i10 Index
Citation Counts
38
87
8,178
* Total H IndexRankings
Ranking Based On Selection :64
Paul Mayer
ecosystem restoration
urban ecology
nitrogen
animal behavior
Metrics
H-Index
i10 Index
Citation Counts
37
73
6,049
* Total H IndexRankings
Ranking Based On Selection :65
Ken Fritz
non-perennial streams
headwaters
connectivity
invertebrates
disturbance
Metrics
H-Index
i10 Index
Citation Counts
37
63
4,760
* Total H IndexRankings
Ranking Based On Selection :68
Catherine Kelty
Applied Environmental Microbiology
Metrics
H-Index
i10 Index
Citation Counts
37
43
4,501
* Total H IndexRankings
Ranking Based On Selection :69
Tammy Stoker
Reproductive Toxicology
Metrics
H-Index
i10 Index
Citation Counts
37
58
5,970
* Total H IndexRankings
Ranking Based On Selection :70
Peter Egeghy
Human Exposure
Chemical Prioritization
High Throughput Exposure Modeling
Metrics
H-Index
i10 Index
Citation Counts
36
59
5,721
* Total H IndexRankings
Ranking Based On Selection :72
Leland Vane
membrane separations
Metrics
H-Index
i10 Index
Citation Counts
36
52
5,444
* Total H IndexRankings
Ranking Based On Selection :75
Bryan Hubbell
risk analysis
air pollution
benefit cost analysis
Metrics
H-Index
i10 Index
Citation Counts
35
60
30,548
* Total H Index Rankings
Rankings
Ranking Based On Selection: 51
Endalkachew Sahle-Demessie
Metrics
H-Index
i10-Index
Citation Counts
40
105
4,893
Nanotechnolgy
water pollution
green chemistry
* Total H Index Rankings
Rankings
Ranking Based On Selection: 52
Michael F Hughes
Metrics
H-Index
i10-Index
Citation Counts
40
81
9,303
toxicokinetics
toxicology
metals
in vitro
* Total H Index Rankings
Rankings
Ranking Based On Selection: 53
Carl F Blackman
Metrics
H-Index
i10-Index
Citation Counts
40
66
5,997
bioelectromagnetics
electromagnetic fields
magnetic fields
biological effects
* Total H Index Rankings
Rankings
Ranking Based On Selection: 54
Christopher G Nolte
Metrics
H-Index
i10-Index
Citation Counts
39
59
6,107
Air Quality
Climate Change
Regional Climate Modeling
* Total H Index Rankings
Rankings
Ranking Based On Selection: 55
Darren Lytle
Metrics
H-Index
i10-Index
Citation Counts
39
93
4,877
* Total H Index Rankings
Rankings
Ranking Based On Selection: 56
Cathleen Wigand
Metrics
H-Index
i10-Index
Citation Counts
39
66
4,490
wetland ecology
climate adaptation
eutrophication
salt marshes
* Total H Index Rankings
Rankings
Ranking Based On Selection: 57
Jesse Bash
Metrics
H-Index
i10-Index
Citation Counts
38
62
4,908
Biosphere-Atmosphere Interactions
Air-Quality
Climate Change
Biogeochemistry
Nitrogen
* Total H Index Rankings
Rankings
Ranking Based On Selection: 58
Chandra Giri
Metrics
H-Index
i10-Index
Citation Counts
38
59
12,506
Global Land Cover
Remote Sensing
Global mangrove monitoring
* Total H Index Rankings
Rankings
Ranking Based On Selection: 59
Jon R Sobus
Metrics
H-Index
i10-Index
Citation Counts
38
77
4,262
Exposure Science
Biomonitoring
Non-targeted Analysis
* Total H Index Rankings
Rankings
Ranking Based On Selection: 60
John Darling
Metrics
H-Index
i10-Index
Citation Counts
38
53
5,978
invasive species
population genetics
conservation biology
coastal ecology
* Total H Index Rankings
Rankings
Ranking Based On Selection: 61
Robert W Pinder
Metrics
H-Index
i10-Index
Citation Counts
38
47
6,173
* Total H Index Rankings
Rankings
Ranking Based On Selection: 62
Tony Olsen
Metrics
H-Index
i10-Index
Citation Counts
38
80
7,205
environmental statistics
spatial survey design
statistical graphics
* Total H Index Rankings
Rankings
Ranking Based On Selection: 63
Air quality
Measurements at local & regional scales
mobile meas.
Field and lab methods
* Total H Index Rankings
Rankings
Ranking Based On Selection: 64
Paul Mayer
Metrics
H-Index
i10-Index
Citation Counts
37
73
6,049
ecosystem restoration
urban ecology
nitrogen
animal behavior
* Total H Index Rankings
Rankings
Ranking Based On Selection: 65
Ken Fritz
Metrics
H-Index
i10-Index
Citation Counts
37
63
4,760
non-perennial streams
headwaters
connectivity
invertebrates
disturbance
* Total H Index Rankings
Rankings
Ranking Based On Selection: 66
Yu-Sheng Lin
Metrics
H-Index
i10-Index
Citation Counts
37
57
3,078
* Total H Index Rankings
Rankings
Ranking Based On Selection: 67
Christopher P Weaver
Metrics
H-Index
i10-Index
Citation Counts
37
62
8,613
* Total H Index Rankings
Rankings
Ranking Based On Selection: 68
Catherine Kelty
Metrics
H-Index
i10-Index
Citation Counts
37
43
4,501
Applied Environmental Microbiology
* Total H Index Rankings
Rankings
Ranking Based On Selection: 69
Tammy Stoker
Metrics
H-Index
i10-Index
Citation Counts
37
58
5,970
Reproductive Toxicology
* Total H Index Rankings
Rankings
Ranking Based On Selection: 70
Peter Egeghy
Metrics
H-Index
i10-Index
Citation Counts
36
59
5,721
Human Exposure
Chemical Prioritization
High Throughput Exposure Modeling
* Total H Index Rankings
Rankings
Ranking Based On Selection: 71
Jingrang Lu
Metrics
H-Index
i10-Index
Citation Counts
36
58
5,062
* Total H Index Rankings
Rankings
Ranking Based On Selection: 72
Leland Vane
Metrics
H-Index
i10-Index
Citation Counts
36
52
5,444
* Total H Index Rankings
Rankings
Ranking Based On Selection: 73
William Boyes
Metrics
H-Index
i10-Index
Citation Counts
36
93
3,912
* Total H Index Rankings
Rankings
Ranking Based On Selection: 74
Neal Fann
Metrics
H-Index
i10-Index
Citation Counts
35
47
7,019
* Total H Index Rankings
Rankings
Ranking Based On Selection: 75
Bryan Hubbell
Metrics
H-Index
i10-Index
Citation Counts
35
60
30,548