Track the real-time academic impact of 2.6 million scientists across 221 countries. The H-Index Rankings evaluate both total and last 5 years’ H-index values, offering the most transparent measure of scholarly recognition. Compare global, continental, national, and institutional performance across 13 major fields and 221 disciplines.
* Total H Index Rankings
Rankings
Ranking Based On Selection:
1
* Total H Index Rankings
Rankings
Ranking Based On Selection:
2
Engineering & Technology / Environmental Science & Engineering
Environmental and Occupational Medicin
Environmental and Occupational Medicin
H-Index Metrics
-
Total72
-
Last 5 Years49
-
Last 5 Years / Total0.681
* Total H Index Rankings
Rankings
Ranking Based On Selection:
3
Engineering & Technology / Environmental Science & Engineering
Modern and paleoclimate changes | Geochemistry | U-Th datin
Modern and paleoclimate changes | Geochemistry | U-Th datin
H-Index Metrics
-
Total67
-
Last 5 Years47
-
Last 5 Years / Total0.701
* Total H Index Rankings
Rankings
Ranking Based On Selection:
4
Engineering & Technology / Environmental Science & Engineering
water electrolysis | green hydrogen production | zinc air battery | electrochemical energy storag
water electrolysis | green hydrogen production | zinc air battery | electrochemical energy storag
H-Index Metrics
-
Total64
-
Last 5 Years43
-
Last 5 Years / Total0.672
* Total H Index Rankings
Rankings
Ranking Based On Selection:
5
* Total H Index Rankings
Rankings
Ranking Based On Selection:
6
* Total H Index Rankings
Rankings
Ranking Based On Selection:
7
Engineering & Technology / Environmental Science & Engineering
Environment | Agriculture | and everything in betwee
Environment | Agriculture | and everything in betwee
H-Index Metrics
-
Total59
-
Last 5 Years54
-
Last 5 Years / Total0.915
* Total H Index Rankings
Rankings
Ranking Based On Selection:
8
* Total H Index Rankings
Rankings
Ranking Based On Selection:
9
Engineering & Technology / Environmental Science & Engineering
Indoor Air Quality | Bioaerosols | Climate Change | Public Healt
Indoor Air Quality | Bioaerosols | Climate Change | Public Healt
H-Index Metrics
-
Total55
-
Last 5 Years33
-
Last 5 Years / Total0.600
* Total H Index Rankings
Rankings
Ranking Based On Selection:
10
Engineering & Technology / Environmental Science & Engineering
air pollution | nonthermal plasma | dioxi
air pollution | nonthermal plasma | dioxi
H-Index Metrics
-
Total54
-
Last 5 Years32
-
Last 5 Years / Total0.593
* Total H Index Rankings
Rankings
Ranking Based On Selection:
11
Engineering & Technology / Environmental Science & Engineering
Exposure and Risk Assessment | Organic Aerosols | Environmental Health Management | Health Adaptation | Heat Vulnerability Assessmen
Exposure and Risk Assessment | Organic Aerosols | Environmental Health Management | Health Adaptation | Heat Vulnerability Assessmen
H-Index Metrics
-
Total49
-
Last 5 Years36
-
Last 5 Years / Total0.735
* Total H Index Rankings
Rankings
Ranking Based On Selection:
12
* Total H Index Rankings
Rankings
Ranking Based On Selection:
13
Engineering & Technology / Environmental Science & Engineering
Water Pollution | Chemicals of Emerging Concern | Photochemistry | Water Reus
Water Pollution | Chemicals of Emerging Concern | Photochemistry | Water Reus
H-Index Metrics
-
Total48
-
Last 5 Years38
-
Last 5 Years / Total0.792
* Total H Index Rankings
Rankings
Ranking Based On Selection:
14
* Total H Index Rankings
Rankings
Ranking Based On Selection:
15
Engineering & Technology / Environmental Science & Engineering
Hydrology | Water Resources | Aritificial Intelligence | Neural Networ
Hydrology | Water Resources | Aritificial Intelligence | Neural Networ
H-Index Metrics
-
Total47
-
Last 5 Years33
-
Last 5 Years / Total0.702
* Total H Index Rankings
Rankings
Ranking Based On Selection:
16
* Total H Index Rankings
Rankings
Ranking Based On Selection:
17
Engineering & Technology / Environmental Science & Engineering
Environmental Engineering and Technolog
Environmental Engineering and Technolog
H-Index Metrics
-
Total46
-
Last 5 Years23
-
Last 5 Years / Total0.500
* Total H Index Rankings
Rankings
Ranking Based On Selection:
18
Engineering & Technology / Environmental Science & Engineering
Membrane Process | Photocatalysis | Environmental Nanotechnolog
Membrane Process | Photocatalysis | Environmental Nanotechnolog
H-Index Metrics
-
Total45
-
Last 5 Years34
-
Last 5 Years / Total0.756
* Total H Index Rankings
Rankings
Ranking Based On Selection:
19
Engineering & Technology / Environmental Science & Engineering
Water treatment and recovery | Membrane separation and fabrication | Disinfection and disinfection by-products | Torrefactio
Water treatment and recovery | Membrane separation and fabrication | Disinfection and disinfection by-products | Torrefactio
H-Index Metrics
-
Total44
-
Last 5 Years37
-
Last 5 Years / Total0.841
* Total H Index Rankings
Rankings
Ranking Based On Selection:
20
Engineering & Technology / Environmental Science & Engineering
Hg control technology | environmental nanotechnology | air quality engineering | soil remediatio
Hg control technology | environmental nanotechnology | air quality engineering | soil remediatio
H-Index Metrics
-
Total42
-
Last 5 Years31
-
Last 5 Years / Total0.738
* Total H Index Rankings
Rankings
Ranking Based On Selection:
21
Engineering & Technology / Environmental Science & Engineering
Air quality | Regional Climate Changes | Urban heat isalnd effect | Mesoscale Meteorolog
Air quality | Regional Climate Changes | Urban heat isalnd effect | Mesoscale Meteorolog
H-Index Metrics
-
Total42
-
Last 5 Years31
-
Last 5 Years / Total0.738
* Total H Index Rankings
Rankings
Ranking Based On Selection:
22
Engineering & Technology / Environmental Science & Engineering
environmental engineering | environmental science | bioresourc
environmental engineering | environmental science | bioresourc
H-Index Metrics
-
Total42
-
Last 5 Years30
-
Last 5 Years / Total0.714
* Total H Index Rankings
Rankings
Ranking Based On Selection:
23
Engineering & Technology / Environmental Science & Engineering
Wastewater treatment | nanomaterials | catalyst | advanced oxidation processes
Wastewater treatment | nanomaterials | catalyst | advanced oxidation processes
H-Index Metrics
-
Total41
-
Last 5 Years41
-
Last 5 Years / Total1.000
* Total H Index Rankings
Rankings
Ranking Based On Selection:
24
Engineering & Technology / Environmental Science & Engineering
Earth and environmental science | biotechnology | Nanotechnolog | biosurfactants | environmental microbiology/DN
Earth and environmental science | biotechnology | Nanotechnolog | biosurfactants | environmental microbiology/DN
H-Index Metrics
-
Total41
-
Last 5 Years33
-
Last 5 Years / Total0.805
* Total H Index Rankings
Rankings
Ranking Based On Selection:
25
Engineering & Technology / Environmental Science & Engineering
Environmental studies | Comparative Education | Buddhism | Japa
Environmental studies | Comparative Education | Buddhism | Japa
H-Index Metrics
-
Total40
-
Last 5 Years27
-
Last 5 Years / Total0.675
Unify strategy, analytics, and growth in one powerful platform. Turn academic data into actionable strategy for sustainable excellence.
Track your performance in real time — benchmark, compare, and improve. Stay ahead with instant insights and global peer comparisons.
Attract world-class talent across 211 disciplines. Find, connect, and recruit the brightest minds worldwide.
Unlock researcher and institutional impact with transparent contribution scores. Recognize, measure, and reward academic excellence at every level.
🌍 Be Our Partner: Representation & Collaboration
Represent AD Scientific Index in your country or region — and grow with us.
- ✅ Official recognition as a regional partner
- ✅ Visibility partnership with full brand support
- ✅ Help institutions in your region enhance their academic visibility
- ✅ Contribute to value-driven projects with measurable academic impact