Subject Rankings

US Environmental Protection Agency Subject Rankings 2025

AD Scientific Index (Alper-Doger Scientific Index) offers the broadest spectrum of branches, providing analysis in 13 main fields and 197 sub-branches at global, national, and regional levels. These analyses can be based on indicators such as the H-index, i10-index, and citation count, as well as their values from the last 6 years. As of Nov 21, 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 (873.864) 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 :1
Richard Judson
Toxicology
bioinformatics
Computational Toxicology
Systems Biology
Endocrine Disruption
Metrics
H-Index
i10 Index
Citation Counts
87
191
33,821
* Total H IndexRankings
Ranking Based On Selection :2
Andrew Ghio
Lung diseases
iron homeostasis
fibers
particles
air pollution
Metrics
H-Index
i10 Index
Citation Counts
85
290
25,042
* Total H IndexRankings
Ranking Based On Selection :3
Mallikarjuna Nadagouda
Nanotechnology
Materials Chemistry
Water Reserach
Metrics
H-Index
i10 Index
Citation Counts
79
225
26,648
* Total H IndexRankings
Ranking Based On Selection :4
Kirk G Scheckel
Environmental Soil Chemistry
Synchrotron Techniques
Bioavailability
Nanoparticles in the Environment
Plant Uptake
Metrics
H-Index
i10 Index
Citation Counts
72
189
21,563
* Total H IndexRankings
Ranking Based On Selection :5
Antony John Williams
Chemistry
Cheminformatics
Nuclear Magnetic Resonance
Drug Discovery
Metrics
H-Index
i10 Index
Citation Counts
70
260
18,578
* Total H IndexRankings
Ranking Based On Selection :7
Keith A Houck
environmental toxicology
drug discovery
nuclear receptors
Metrics
H-Index
i10 Index
Citation Counts
66
114
27,203
* Total H IndexRankings
Ranking Based On Selection :8
Ann M Richard
Computational chemistry
cheminformatics
toxicology
Metrics
H-Index
i10 Index
Citation Counts
66
113
16,701
* Total H IndexRankings
Ranking Based On Selection :9
Jorge W Santo Domingo
Molecular Microbial Ecology
drinking water
microbial ecology
environmental microbiology
water
Metrics
H-Index
i10 Index
Citation Counts
61
129
9,995
* Total H IndexRankings
Ranking Based On Selection :10
Jia Xing
Metrics
H-Index
i10 Index
Citation Counts
59
142
11,811
* Total H IndexRankings
Ranking Based On Selection :14
Michael Devito
toxicology
pharmacokinetics
thyroid
PFAS
dioxins
Metrics
H-Index
i10 Index
Citation Counts
57
112
14,596
* Total H IndexRankings
Ranking Based On Selection :16
Mark Strynar
Xenobiotic compounds in environmental media
Metrics
H-Index
i10 Index
Citation Counts
56
103
13,229
* Total H IndexRankings
Ranking Based On Selection :17
Ahjond Garmestani
Environmental Law
Environmental Law and Policy
Ecosystem Management
Metrics
H-Index
i10 Index
Citation Counts
56
92
9,563
* Total H IndexRankings
Ranking Based On Selection :19
James Wickham
Environment
landscape ecology
remote sensing
GIS
Metrics
H-Index
i10 Index
Citation Counts
54
102
21,131
* Total H IndexRankings
Ranking Based On Selection :20
R Woodrow Setzer
biostatistics
dose-response
pharmacokinetics
high throughput screening
quantitative risk assessment
Metrics
H-Index
i10 Index
Citation Counts
54
104
12,076
* Total H IndexRankings
Ranking Based On Selection :21
Mace G Barron
aquatic toxicology
oil
bioaccumulation
pharmacokinetics
Metrics
H-Index
i10 Index
Citation Counts
54
133
9,247
* Total H IndexRankings
Ranking Based On Selection :22
Jay Garland
environmental microbiology
microbial ecology
regenerative system design
Metrics
H-Index
i10 Index
Citation Counts
54
125
13,491
* Total H IndexRankings
Ranking Based On Selection :23
Stephanie Padilla
neurotoxicology
developmental toxicology
chemical screening
zebrafish
Metrics
H-Index
i10 Index
Citation Counts
53
108
10,396
* Total H IndexRankings
Ranking Based On Selection :24
John Wambaugh
mathematical modeling
computational toxicology
pharmacokinetics
exposure modeling
in vitro-in vivo extrapolation
Metrics
H-Index
i10 Index
Citation Counts
52
90
9,737
* Total H Index Rankings
Rankings
Ranking Based On Selection: 1
Richard Judson
Metrics
H-Index
i10-Index
Citation Counts
87
191
33,821
Toxicology
bioinformatics
Computational Toxicology
Systems Biology
Endocrine Disruption
* Total H Index Rankings
Rankings
Ranking Based On Selection: 2
Andrew Ghio
Metrics
H-Index
i10-Index
Citation Counts
85
290
25,042
Lung diseases
iron homeostasis
fibers
particles
air pollution
* Total H Index Rankings
Rankings
Ranking Based On Selection: 3
Mallikarjuna Nadagouda
Metrics
H-Index
i10-Index
Citation Counts
79
225
26,648
* Total H Index Rankings
Rankings
Ranking Based On Selection: 4
Kirk G Scheckel
Metrics
H-Index
i10-Index
Citation Counts
72
189
21,563
Environmental Soil Chemistry
Synchrotron Techniques
Bioavailability
Nanoparticles in the Environment
Plant Uptake
* Total H Index Rankings
Rankings
Ranking Based On Selection: 5
Antony John Williams
Metrics
H-Index
i10-Index
Citation Counts
70
260
18,578
Chemistry
Cheminformatics
Nuclear Magnetic Resonance
Drug Discovery
* Total H Index Rankings
Rankings
Ranking Based On Selection: 6
Russell S Thomas
Metrics
H-Index
i10-Index
Citation Counts
69
167
15,965
* Total H Index Rankings
Rankings
Ranking Based On Selection: 7
Keith A Houck
Metrics
H-Index
i10-Index
Citation Counts
66
114
27,203
environmental toxicology
drug discovery
nuclear receptors
* Total H Index Rankings
Rankings
Ranking Based On Selection: 8
Ann M Richard
Metrics
H-Index
i10-Index
Citation Counts
66
113
16,701
Computational chemistry
cheminformatics
toxicology
* Total H Index Rankings
Rankings
Ranking Based On Selection: 9
Jorge W Santo Domingo
Metrics
H-Index
i10-Index
Citation Counts
61
129
9,995
Molecular Microbial Ecology
drinking water
microbial ecology
environmental microbiology
water
* Total H Index Rankings
Rankings
Ranking Based On Selection: 10
Jia Xing
Metrics
H-Index
i10-Index
Citation Counts
59
142
11,811
* Total H Index Rankings
Rankings
Ranking Based On Selection: 11
Grace Patlewicz
Metrics
H-Index
i10-Index
Citation Counts
59
149
14,054
* Total H Index Rankings
Rankings
Ranking Based On Selection: 12
Thomas B Knudsen
Metrics
H-Index
i10-Index
Citation Counts
58
130
14,110
* Total H Index Rankings
Rankings
Ranking Based On Selection: 13
John H Offenberg
Metrics
H-Index
i10-Index
Citation Counts
58
91
11,720
* Total H Index Rankings
Rankings
Ranking Based On Selection: 14
Michael Devito
Metrics
H-Index
i10-Index
Citation Counts
57
112
14,596
toxicology
pharmacokinetics
thyroid
PFAS
dioxins
* Total H Index Rankings
Rankings
Ranking Based On Selection: 15
Brian Gullett
Metrics
H-Index
i10-Index
Citation Counts
57
148
10,995
* Total H Index Rankings
Rankings
Ranking Based On Selection: 16
Mark Strynar
Metrics
H-Index
i10-Index
Citation Counts
56
103
13,229
Xenobiotic compounds in environmental media
* Total H Index Rankings
Rankings
Ranking Based On Selection: 17
Ahjond Garmestani
Metrics
H-Index
i10-Index
Citation Counts
56
92
9,563
Environmental Law
Environmental Law and Policy
Ecosystem Management
* Total H Index Rankings
Rankings
Ranking Based On Selection: 18
* Total H Index Rankings
Rankings
Ranking Based On Selection: 19
James Wickham
Metrics
H-Index
i10-Index
Citation Counts
54
102
21,131
* Total H Index Rankings
Rankings
Ranking Based On Selection: 20
R Woodrow Setzer
Metrics
H-Index
i10-Index
Citation Counts
54
104
12,076
biostatistics
dose-response
pharmacokinetics
high throughput screening
quantitative risk assessment
* Total H Index Rankings
Rankings
Ranking Based On Selection: 21
Mace G Barron
Metrics
H-Index
i10-Index
Citation Counts
54
133
9,247
aquatic toxicology
oil
bioaccumulation
pharmacokinetics
* Total H Index Rankings
Rankings
Ranking Based On Selection: 22
Jay Garland
Metrics
H-Index
i10-Index
Citation Counts
54
125
13,491
environmental microbiology
microbial ecology
regenerative system design
* Total H Index Rankings
Rankings
Ranking Based On Selection: 23
Stephanie Padilla
Metrics
H-Index
i10-Index
Citation Counts
53
108
10,396
neurotoxicology
developmental toxicology
chemical screening
zebrafish
* Total H Index Rankings
Rankings
Ranking Based On Selection: 24
John Wambaugh
Metrics
H-Index
i10-Index
Citation Counts
52
90
9,737
mathematical modeling
computational toxicology
pharmacokinetics
exposure modeling
in vitro-in vivo extrapolation
* Total H Index Rankings
Rankings
Ranking Based On Selection: 25
James Lazorchak
Metrics
H-Index
i10-Index
Citation Counts
51
108
15,670