Citation Rankings
Highly Cited Researchers

Engineering & Technology / Environmental Science & Engineering Highly Cited Researchers 65 Scientists Citation Rankings - 2025

The Citation Rankings (Highly Cited Researchers) list highlight the most cited and influential researchers across a vast range of scientific fields, covering 197 main and sub-disciplines, including the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings. This service, offered exclusively by AD Scientific Index, aims to provide a balanced perspective by excluding data from CERN and other statistical sources that disproportionately favor certain researchers, particularly in the social sciences and humanities. This unique approach addresses the advantages researchers with multi-author publications and CERN involvement hold over others. Furthermore, citation rankings help uncover rule violations and unethical practices within the research community. For more detailed citation analyses, explore the Scientists Last 6 Years Citation Index, Universities Total Citations Rankings 2025, and Universities Last 6 Years Citations Rankings 2025.

* Total Citation Counts Rankings
Ranking Based On Selection: 1
United States
Bin Gao
Environmental Science & Engineering
Contaminant Hydrology
Environmental Nanotechnology
Biochar
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
61,599
43,673
0.709
* Total Citation Counts Rankings
Ranking Based On Selection: 2
United States
Mark T Brown
Systems Ecology
Ecological Engineering
Emergy
Wetlands
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27,911
12,260
0.439
* Total Citation Counts Rankings
Ranking Based On Selection: 3
United States
Jeffrey W White
phenomics
crop physiology
climate change
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
23,469
9,830
0.419
* Total Citation Counts Rankings
Ranking Based On Selection: 4
United States
Timothy Townsend
Solid and Hazardous Waste Management
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,818
7,188
0.427
* Total Citation Counts Rankings
Ranking Based On Selection: 5
United States
James R Mihelcic
sustainability
environmental engineering
water
sanitation
hygiene
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,923
5,527
0.397
* Total Citation Counts Rankings
Ranking Based On Selection: 6
United States
Ashok Alva
Sustainable Agriculture
Water Quality
Soil Quality
Bioenergy
Climate Change
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,843
3,461
0.250
* Total Citation Counts Rankings
Ranking Based On Selection: 7
United States
Fudong Liu
Heterogeneous catalysis
Environmental catalysis
Single atom catalysis
Greenhouse gas
XAS
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,277
6,788
0.553
* Total Citation Counts Rankings
Ranking Based On Selection: 8
United States
Chang Yu Wu
aerosol
air pollution
nanotechnology
engineering education
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,686
5,153
0.441
* Total Citation Counts Rankings
Ranking Based On Selection: 9
United States
Michael D Annable
Environmental Engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,420
1,553
0.242
* Total Citation Counts Rankings
Ranking Based On Selection: 10
United States
Jean Claude J Bonzongo
Biogeochemistry of Trace Metals
Environmental Nanotechnology
Remediation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,350
1,332
0.249
* Total Citation Counts Rankings
Ranking Based On Selection: 11
United States
Joseph J Delfino
Water Chemistry
Water Quality
Sustainability
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,444
414
0.093
* Total Citation Counts Rankings
Ranking Based On Selection: 12
United States
Kevin J Kroll
ecotoxicology
reproductive physiology
endocrine disruption
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,411
1,098
0.249
* Total Citation Counts Rankings
Ranking Based On Selection: 13
United States
Catherine M Tucker
Environment
anthropology
forests
coffee
Latin America
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,364
1,540
0.353
* Total Citation Counts Rankings
Ranking Based On Selection: 14
United States
James Heaney
urban water
stormwater
water use
water budgets
cost allocation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,294
680
0.158
* Total Citation Counts Rankings
Ranking Based On Selection: 15
United States
Mauricio E Arias
Water Resources
Ecological Engineering
Hydrology
Sustainability
Water Quality Modeling
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,111
2,971
0.723
* Total Citation Counts Rankings
Ranking Based On Selection: 16
United States
Hyoung Jin Cho
Magnetic MEMS
environmental sensors
microfabrication
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,793
1,394
0.368
* Total Citation Counts Rankings
Ranking Based On Selection: 17
United States
Roger Kjelgren
environmental science
agriculture
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,771
1,305
0.346
* Total Citation Counts Rankings
Ranking Based On Selection: 18
United States
Paul Chadik
Water Treatment
water chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,406
476
0.140
* Total Citation Counts Rankings
Ranking Based On Selection: 19
United States
Andrew Kane
Aquatic Pathology and Toxicology
Environmental and Public Health
Scientific Communications
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,310
884
0.267
* Total Citation Counts Rankings
Ranking Based On Selection: 20
United States
Andrew Randall
Wastewater Treatment
Nutrient Removal
Biofilms
Microbial Water Quality
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,181
545
0.171
* Total Citation Counts Rankings
Ranking Based On Selection: 21
United States
Zhanao Deng
plant breeding
genetics
genomics
genetic transformation
CRISPR gene editing
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,094
1,363
0.441
* Total Citation Counts Rankings
Ranking Based On Selection: 22
United States
Antarpreet Jutla
Hydrologic and hydraulic modeling
remote sensing
Climate change
infectious diseases
flood forecasting
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,890
2,013
0.697
* Total Citation Counts Rankings
Ranking Based On Selection: 23
United States
Saqib Mukhtar
air quality
water quality
animal manure and wastewater
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,742
663
0.242
* Total Citation Counts Rankings
Ranking Based On Selection: 24
United States
David Kaplan
Water resources
ecohydrology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,490
1,833
0.736
* Total Citation Counts Rankings
Ranking Based On Selection: 25
United States
Sanjay Shukla
Water Sustainability
Hydrology
Water Qualtiy
Agricultural Systems
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,474
1,041
0.421
* Total Citation Counts Rankings
Rankings
7,342
United States
3,476
27
Ranking Based On Selection: 1
Bin Gao
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
61,599
43,673
0.709
Environmental Science & Engineering
Contaminant Hydrology
Environmental Nanotechnology
Biochar
* Total Citation Counts Rankings
Rankings
25,612
United States
11,756
102
Ranking Based On Selection: 2
Mark T Brown
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27,911
12,260
0.439
* Total Citation Counts Rankings
Rankings
33,149
United States
14,897
140
Ranking Based On Selection: 3
Jeffrey W White
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
23,469
9,830
0.419
* Total Citation Counts Rankings
Rankings
52,446
United States
22,582
219
Ranking Based On Selection: 4
Timothy Townsend
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,818
7,188
0.427
* Total Citation Counts Rankings
Rankings
67,391
United States
28,213
88
Ranking Based On Selection: 5
James R Mihelcic
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,923
5,527
0.397
sustainability
environmental engineering
water
sanitation
hygiene
* Total Citation Counts Rankings
Rankings
67,886
United States
28,391
265
Ranking Based On Selection: 6
Ashok Alva
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,843
3,461
0.250
Sustainable Agriculture
Water Quality
Soil Quality
Bioenergy
Climate Change
* Total Citation Counts Rankings
Rankings
78,807
United States
32,324
69
Ranking Based On Selection: 7
Fudong Liu
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,277
6,788
0.553
Heterogeneous catalysis
Environmental catalysis
Single atom catalysis
Greenhouse gas
XAS
* Total Citation Counts Rankings
Rankings
83,745
United States
34,126
332
Ranking Based On Selection: 8
Chang Yu Wu
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,686
5,153
0.441
* Total Citation Counts Rankings
Rankings
163,220
United States
60,542
610
Ranking Based On Selection: 9
Michael D Annable
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,420
1,553
0.242
* Total Citation Counts Rankings
Rankings
195,644
United States
70,490
751
Ranking Based On Selection: 10
Jean Claude J Bonzongo
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,350
1,332
0.249
Biogeochemistry of Trace Metals
Environmental Nanotechnology
Remediation
* Total Citation Counts Rankings
Rankings
233,479
United States
81,776
873
Ranking Based On Selection: 11
Joseph J Delfino
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,444
414
0.093
* Total Citation Counts Rankings
Rankings
235,021
United States
82,199
876
Ranking Based On Selection: 12
Kevin J Kroll
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,411
1,098
0.249
* Total Citation Counts Rankings
Rankings
237,382
United States
82,880
880
Ranking Based On Selection: 13
Catherine M Tucker
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,364
1,540
0.353
* Total Citation Counts Rankings
Rankings
241,004
United States
83,924
889
Ranking Based On Selection: 14
James Heaney
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,294
680
0.158
urban water
stormwater
water use
water budgets
cost allocation
* Total Citation Counts Rankings
Rankings
250,787
United States
86,792
299
Ranking Based On Selection: 15
Mauricio E Arias
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,111
2,971
0.723
Water Resources
Ecological Engineering
Hydrology
Sustainability
Water Quality Modeling
* Total Citation Counts Rankings
Rankings
269,384
United States
92,159
277
Ranking Based On Selection: 16
Hyoung Jin Cho
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,793
1,394
0.368
* Total Citation Counts Rankings
Rankings
270,727
United States
92,544
984
Ranking Based On Selection: 17
Roger Kjelgren
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,771
1,305
0.346
* Total Citation Counts Rankings
Rankings
295,673
United States
99,754
1,057
Ranking Based On Selection: 18
Paul Chadik
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,406
476
0.140
* Total Citation Counts Rankings
Rankings
302,841
United States
101,774
1,072
Ranking Based On Selection: 19
Andrew Kane
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,310
884
0.267
Aquatic Pathology and Toxicology
Environmental and Public Health
Scientific Communications
* Total Citation Counts Rankings
Rankings
313,016
United States
104,678
321
Ranking Based On Selection: 20
Andrew Randall
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,181
545
0.171
Wastewater Treatment
Nutrient Removal
Biofilms
Microbial Water Quality
* Total Citation Counts Rankings
Rankings
320,356
United States
106,683
1,129
Ranking Based On Selection: 21
Zhanao Deng
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,094
1,363
0.441
plant breeding
genetics
genomics
genetic transformation
CRISPR gene editing
* Total Citation Counts Rankings
Rankings
338,624
United States
111,853
1,191
Ranking Based On Selection: 22
Antarpreet Jutla
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,890
2,013
0.697
Hydrologic and hydraulic modeling
remote sensing
Climate change
infectious diseases
flood forecasting
* Total Citation Counts Rankings
Rankings
353,422
United States
115,939
1,234
Ranking Based On Selection: 23
Saqib Mukhtar
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,742
663
0.242
* Total Citation Counts Rankings
Rankings
380,950
United States
123,487
1,299
Ranking Based On Selection: 24
David Kaplan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,490
1,833
0.736
* Total Citation Counts Rankings
Rankings
382,953
United States
124,038
1,302
Ranking Based On Selection: 25
Sanjay Shukla
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,474
1,041
0.421
Water Sustainability
Hydrology
Water Qualtiy
Agricultural Systems
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