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 Jan 30, 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 (873.690) 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
Nanotechnology
Materials Chemistry
Water Reserach
Metrics
H-Index
i10 Index
Citation Counts
81
228
27,386
* Total H IndexRankings
Ranking Based On Selection: 2
Soil and groundwater remediation
environmental nanotechnology
biochar
Metrics
H-Index
i10 Index
Citation Counts
46
70
8,308
* Total H IndexRankings
Ranking Based On Selection: 3
Contaminant Fate and Transport Modeling
Water Quality
Mercury
Nanomaterials
Eutrophication
Metrics
H-Index
i10 Index
Citation Counts
24
39
2,307
* Total H IndexRankings
Ranking Based On Selection: 4
Water and Wastewater Treatment in Developing Countries
Nanotechnology
Stormwater Management
Contaminate Fate and Transport
Metrics
H-Index
i10 Index
Citation Counts
10
11
1,100
Mallikarjuna Nadagouda
US Environmental Protection Agency
Washington, United States
Metrics
H-Index
i10-Index
Citation Counts
81
228
27,386
Nanotechnology
Materials Chemistry
Water Reserach
Chunming Su
US Environmental Protection Agency
Washington, United States
Metrics
H-Index
i10-Index
Citation Counts
46
70
8,308
Soil and groundwater remediation
environmental nanotechnology
biochar
Christopher Knightes
US Environmental Protection Agency
Washington, United States
Metrics
H-Index
i10-Index
Citation Counts
24
39
2,307
Contaminant Fate and Transport Modeling
Water Quality
Mercury
Nanomaterials
Eutrophication
Anne M Mikelonis
US Environmental Protection Agency
Washington, United States
Metrics
H-Index
i10-Index
Citation Counts
10
11
1,100
Water and Wastewater Treatment in Developing Countries
Nanotechnology
Stormwater Management
Contaminate Fate and Transport