The AD Scientific Index (Alper-Doger Scientific Index) provides the most comprehensive analysis across 13 main fields and 197 sub-branches at global, national, and regional levels. These analyses are based on indicators such as the H-index, i10-index, and citation count, including their values from the last 6 years. As of Feb 01, 2025, the rankings are determined according to the Total H Index. BETA VERSION: The subject field rankings for the world, regions, countries, and universities are currently in their Beta phase. This is due to the exclusion of (870.053) scientists categorized under ‘Others’, whose profiles have yet to be determined, edited, or classified. As updates are made to these fields, the rankings will be adjusted accordingly. Note: Please keep this in mind while reviewing the rankings. For further details, explore our [University Subject Rankings].
* Total H IndexRankings
Ranking Based On Selection: 1
Water Treatment Processes
Environmental Nanotechnology
Advanced Oxidation
Membrane Technology
Metrics
H-Index
i10 Index
Citation Counts
133
800
70,499
* Total H IndexRankings
Ranking Based On Selection: 2
Water Treatment
Membrane Technology
Environmental Engineering
Metrics
H-Index
i10 Index
Citation Counts
78
317
19,904
* Total H IndexRankings
Ranking Based On Selection: 3
Water Security Microbiology
Wastewater treatment
Risk assessment of emerging contaminants
Metrics
H-Index
i10 Index
Citation Counts
49
120
6,732
* Total H IndexRankings
Ranking Based On Selection: 4
Environmental Engineering
Wastewater Treatment
Environmental Microbiology
Bioenergy recovery
Nitrogen cycle
Metrics
H-Index
i10 Index
Citation Counts
45
114
5,983
* Total H IndexRankings
Ranking Based On Selection: 5
Wastewater Treatment
Metrics
H-Index
i10 Index
Citation Counts
42
91
5,617
* Total H IndexRankings
Ranking Based On Selection: 6
Environmental Biotechnology
Metrics
H-Index
i10 Index
Citation Counts
39
77
4,185
* Total H IndexRankings
Ranking Based On Selection: 7
Water and waste water treatment
Metrics
H-Index
i10 Index
Citation Counts
38
63
4,848
* Total H IndexRankings
Ranking Based On Selection: 8
Water treatment
Environmental engineering
Metrics
H-Index
i10 Index
Citation Counts
36
56
3,935
* Total H IndexRankings
Ranking Based On Selection: 9
Water treatment
membrane technology
Metrics
H-Index
i10 Index
Citation Counts
35
65
3,383
* Total H IndexRankings
Ranking Based On Selection: 10
Water electrolysis
Pulsed dynamic electrocatalysis
Porous carbon
Oxygen reduction reaction
Metrics
H-Index
i10 Index
Citation Counts
29
63
2,650
* Total H IndexRankings
Ranking Based On Selection: 11
Environmental Engineering
Water Treatment
Wastewater Treatment
Metrics
H-Index
i10 Index
Citation Counts
29
33
4,822
* Total H IndexRankings
Ranking Based On Selection: 12
water and wastewater treatment
membrane fouling
nutrient and bioenergy recovery
Metrics
H-Index
i10 Index
Citation Counts
24
39
1,762
* Total H IndexRankings
Ranking Based On Selection: 13
Environmental Engineering
Metrics
H-Index
i10 Index
Citation Counts
23
36
2,281
* Total H IndexRankings
Ranking Based On Selection: 14
Environmental Science and Engineering
Metrics
H-Index
i10 Index
Citation Counts
21
26
1,624
* Total H IndexRankings
Ranking Based On Selection: 15
Water and wastewater treatment
Resource recovery
Membrane technology
Metrics
H-Index
i10 Index
Citation Counts
18
25
913
* Total H IndexRankings
Ranking Based On Selection: 16
environmental engineering
Metrics
H-Index
i10 Index
Citation Counts
14
16
879
* Total H IndexRankings
Ranking Based On Selection: 17
Microbial Electrochemistry
Metrics
H-Index
i10 Index
Citation Counts
13
14
367
* Total H IndexRankings
Ranking Based On Selection: 18
environmental policy
energy policy
Metrics
H-Index
i10 Index
Citation Counts
12
12
875
* Total H IndexRankings
Ranking Based On Selection: 19
Environment Science
Metrics
H-Index
i10 Index
Citation Counts
8
8
189
* Total H IndexRankings
Ranking Based On Selection: 20
Membrane Technology
Enzymatic Catalysis
Environmental Engineering
Catalytic Membranes
Membrane Fouling Control
Metrics
H-Index
i10 Index
Citation Counts
7
7
451
* Total H IndexRankings
Ranking Based On Selection: 21
Environmental Science and Technology
Membrane Technology
Capacitive Deionization
Electrochemistry
Metrics
H-Index
i10 Index
Citation Counts
5
4
82
* Total H IndexRankings
Ranking Based On Selection: 22
Environmental engineering
Metrics
H-Index
i10 Index
Citation Counts
4
4
258
* Total H IndexRankings
Ranking Based On Selection: 23
Environmental Science
Artificial Intelligence
Metrics
H-Index
i10 Index
Citation Counts
4
3
88
Jun Ma 马军
Harbin Institute of Technology
Harbin, China
Metrics
H-Index
i10-Index
Citation Counts
133
800
70,499
Water Treatment Processes
Environmental Nanotechnology
Advanced Oxidation
Membrane Technology
Heng Liang
Harbin Institute of Technology
Harbin, China
Metrics
H-Index
i10-Index
Citation Counts
78
317
19,904
Water Treatment
Membrane Technology
Environmental Engineering
Bin Liang
Harbin Institute of Technology
Harbin, China
Metrics
H-Index
i10-Index
Citation Counts
49
120
6,732
Water Security Microbiology
Wastewater treatment
Risk assessment of emerging contaminants
Guo Jun Xie
Harbin Institute of Technology
Harbin, China
Metrics
H-Index
i10-Index
Citation Counts
45
114
5,983
Environmental Engineering
Wastewater Treatment
Environmental Microbiology
Bioenergy recovery
Nitrogen cycle
Jia Liu
Harbin Institute of Technology
Harbin, China
Metrics
H-Index
i10-Index
Citation Counts
42
91
5,617
Ang Li
Harbin Institute of Technology
Harbin, China
Metrics
H-Index
i10-Index
Citation Counts
39
77
4,185
Environmental Biotechnology
An Ding
Harbin Institute of Technology
Harbin, China
Metrics
H-Index
i10-Index
Citation Counts
38
63
4,848
Water and waste water treatment
王鲁 (Lu Wang)
Harbin Institute of Technology
Harbin, China
Metrics
H-Index
i10-Index
Citation Counts
36
56
3,935
Water treatment
Environmental engineering
Xuewu Zhu
Harbin Institute of Technology
Harbin, China
Metrics
H-Index
i10-Index
Citation Counts
35
65
3,383
Water treatment
membrane technology
Wei Zhou|W Zhou; Zhou Wei; 周伟
Harbin Institute of Technology
Harbin, China
Metrics
H-Index
i10-Index
Citation Counts
29
63
2,650
Water electrolysis
Pulsed dynamic electrocatalysis
Porous carbon
Oxygen reduction reaction
Juan Li
Harbin Institute of Technology
Harbin, China
Metrics
H-Index
i10-Index
Citation Counts
29
33
4,822
Environmental Engineering
Water Treatment
Wastewater Treatment
Xie Binghan
Harbin Institute of Technology
Harbin, China
Metrics
H-Index
i10-Index
Citation Counts
24
39
1,762
water and wastewater treatment
membrane fouling
nutrient and bioenergy recovery
Yongpeng XU
Harbin Institute of Technology
Harbin, China
Metrics
H-Index
i10-Index
Citation Counts
23
36
2,281
Environmental Engineering
Shutao Wang
Harbin Institute of Technology
Harbin, China
Metrics
H-Index
i10-Index
Citation Counts
21
26
1,624
Environmental Science and Engineering
Sun Feiyun
Harbin Institute of Technology
Harbin, China
Metrics
H-Index
i10-Index
Citation Counts
18
25
913
Water and wastewater treatment
Resource recovery
Membrane technology
Haiyang He
Harbin Institute of Technology
Harbin, China
Metrics
H-Index
i10-Index
Citation Counts
14
16
879
environmental engineering
Jiannan Li
Harbin Institute of Technology
Harbin, China
Metrics
H-Index
i10-Index
Citation Counts
13
14
367
Microbial Electrochemistry
Tianle Liu
Harbin Institute of Technology
Harbin, China
Metrics
H-Index
i10-Index
Citation Counts
12
12
875
environmental policy
energy policy
Yang Pufei
Harbin Institute of Technology
Harbin, China
Metrics
H-Index
i10-Index
Citation Counts
8
8
189
Shu Xu
Harbin Institute of Technology
Harbin, China
Metrics
H-Index
i10-Index
Citation Counts
7
7
451
Membrane Technology
Enzymatic Catalysis
Environmental Engineering
Catalytic Membranes
Membrane Fouling Control
Qi Shen
Harbin Institute of Technology
Harbin, China
Metrics
H-Index
i10-Index
Citation Counts
5
4
82
Environmental Science and Technology
Membrane Technology
Capacitive Deionization
Electrochemistry
Fanzhe Zeng
Harbin Institute of Technology
Harbin, China
Metrics
H-Index
i10-Index
Citation Counts
4
4
258
Environmental engineering
Yu-Qi Wang|Yuqi Wang
Harbin Institute of Technology
Harbin, China
Metrics
H-Index
i10-Index
Citation Counts
4
3
88
Environmental Science
Artificial Intelligence