Editor Profile

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Dr. Mohamed Gad, Ph.D.

Associate Professor

Present

University of Sadat City

Sadat City

Egypt

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Mohamed Gad received the B.Sc. degree in Tanta University, Egypt, and received the M.Sc. degree in Minufiya University, Egypt. He received the Ph.D. degree in University of Sadat City, Egypt. He is an associate professor of Hydrogeology in Environmental Studies and Research Institute, University of Sadat City, Egypt. His research interests include hydrogeology, hydrogeochemistry, geochemical modelling, water quality, water pollution, groundwater, surface water, and environmental sciences. He is also a senior hydrogeologist, scientist, certified hydrogeology consultant and technical project manager.  Most of my recent project works were devoted to supporting client compliance with the water quality monitoring and management in Egypt, KSA, Algeria, Tunisia, and Yemen.

  • Hydrogeology
  • Hydrogeochemistry
  • Geochemical Modelling
  • Water Quality
  • Water Pollution
  • Groundwater
  • Surface Water
  • Environmental Sciences
  • Hfaiedh E.; Gaagai A.; Petitta M.; Ben Moussa A.; Mlayah A.; Eid M.H.; Szűcs P.; Elsayed S.; Abd El baki M.S.; Elbeltagi A.; Salem A.; Gad M. Hydrogeochemical characterization and water quality evaluation associated with toxic elements using indexing approaches, multivariate analysis, and artificial neural networks in Morang, Tunisia. Environ. Earth Sci. 2025, 84, 361. https://doi.org/10.1007/s12665-025-12165-9
  • Gad M.; Abd-El Hamed R.; El Fadaly E.A.; Mousa I.E.; Gaagai A.; Aouissi H.A.; Eid M.H.; Abukhadra M.R.; Alqhtani H.A.; Allam A.A.; Elsayed S. New approach to predict wastewater quality for irrigation utilizing integrated indexical approaches and hyperspectral reflectance measurements supported with multivariate analysis. Sci. Rep. 2025, 15, 16395. https://doi.org/10.1038/s41598-025-01181-1
  • Al-Falal A.N.A.; Elsayed S.; El Fadaly E.A.; Gaagai A.; Aouissi H.A.; Abd El-baki M.S.; Eid M.H.; Elwakeel A.E.; Yaseen Z.M.; Elsherbiny O.; Eltahir E.I.; Gad M. Aquatic System Assessment of Potentially Toxic Elements in El Manzala Lake, Egypt: A Statistical and Machine Learning Approach. Results in Engineering 2025, 105027. https://doi.org/10.1016/j.rineng.2025.105027
  • Gad M.; Gaagai A.; Agrama A.A.; El-Fiqy W.F.M.; Eid M.H.; Szűcs P.; Elsayed S.; Elsherbiny O.; Khadr M.; Abukhadra M.R.; Alfassam H.E.; Bellucci S.; Ibrahim H. Comprehensive Evaluation and Prediction of Groundwater Quality and Risk Indices Using Quantitative Approaches, Multivariate Analysis, and Machine Learning Models: An Exploratory Study. Heliyon 2024, 10, 15, e36606. https://doi.org/10.1016/j.heliyon.2024.e36606
  • Ata A.A.E.-S.M.; Aly M.H.; Hussein H.; Eid M.H.; Abukhadra M.R.; El-Sherbeeny A.M.; Bellucci S.; Gad M. Hydrogeochemical characteristics and air quality risks associated with gold mining operations in Egypt using geochemical modeling and risk indices. Heliyon 2024, 10, 11, e31086. https://doi.org/10.1016/j.heliyon.2024.e31086
  • Elmaadawy, K.G.; Bayan, M.F.; Gad, M.; Szűcs, P.; Eid, M.H.; Abukhadra, M.R.; El-Sherbeeny, A.M.; Bellucci, S.; Abdelmaksoud, A.S. The impact of Oligo-Miocene basaltic intrusions on the petroleum system in Gulf of Suez rift basin, Egypt: new insights into thermal maturity and reservoir quality. Front. Earth Sci. 2024, 11, 1295271. https://doi.org/10.3389/feart.2023.1295271
  • Salem, S.B.H.; Gaagai, A.; Ben Slimene, I.; Moussa, A.B.; Zouari, K.; Yadav, K.K.; Eid, M.H.; Abukhadra, M.R.; El-Sherbeeny, A.M.; Gad, M.; Farouk, M.; Elsherbiny, O.; Elsayed, S.; Bellucci, S.; Ibrahim, H. Applying Multivariate Analysis and Machine Learning Approaches to Evaluating Groundwater Quality on the Kairouan Plain, Tunisia. Water 2023, 15, 3495. https://doi.org/10.3390/w15193495
  • Gad, M.; Saleh, A.H.; Hussein, H.; Elsayed, S.; Farouk, M. Water Quality Evaluation and Prediction Using Irrigation Indices, Artificial Neural Networks, and Partial Least Square Regression Models for the Nile River, Egypt. Water 2023, 15, 2244. https://doi.org/10.3390/w15122244
  • Al-Mashreki, M.H.; Eid, M.H.; Saeed, O.; Székács, A.; Szűcs, P.; Gad, M.; Abukhadra, M.R.; AlHammadi, A.A.; Alrakhami, M.S.; Alshabibi, M.A.; Elsayed, S.; Khadr, M.; Farouk, M.; Ramadan, H.S. Integration of Geochemical Modeling, Multivariate Analysis, and Irrigation Indices for Assessing Groundwater Quality in the Al-Jawf Basin, Yemen. Water 2023, 15, 1496. https://doi.org/10.3390/w15081496
  • Gad, M.; Gaagai, A.; Eid, M.H.; Szűcs, P.; Hussein, H.; Elsherbiny, O.; Elsayed, S.; Khalifa, M.M.; Moghanm, F.S.; Moustapha, M.E.; Tolan, D.A.; Ibrahim, H. Groundwater Quality and Health Risk Assessment Using Indexing Approaches, Multivariate Statistical Analysis, Artificial Neural Networks, and GIS Techniques in El Kharga Oasis, Egypt. Water 2023, 15, 1216. https://doi.org/10.3390/w15061216
  • Ibrahim, H.; Yaseen, Z.M.; Scholz, M.; Ali, M.; Gad, M.; Elsayed, S.; Khadr, M.; Hussein, H.; Ibrahim, H.H.; Eid, M.H.; Kovács, A.; Péter, S.; Khalifa, M.M. Evaluation and Prediction of Groundwater Quality for Irrigation Using an Integrated Water Quality Indices, Machine Learning Models and GIS Approaches: A Representative Case Study. Water 2023, 15, 694. https://doi.org/10.3390/w15040694
  • Gaagai, A.; Aouissi, H.A.; Bencedira, S.; Hinge, G.; Athamena, A.; Haddam, S.; Gad, M.; Elsherbiny, O.; Elsayed, S.; Eid, M.H.; Ibrahim, H. Application of Water Quality Indices, Machine Learning Approaches, and GIS to Identify Groundwater Quality for Irrigation Purposes: A Case Study of Sahara Aquifer, Doucen Plain, Algeria. Water 2023, 15, 289. https://doi.org/10.3390/w15020289
  • Eid, M.H.; Elbagory, M.; Tamma, A.A.; Gad, M.; Elsayed, S.; Hussein, H.; Moghanm, F.S.; Omara, A.E.-D.; Kovács, A.; Péter, S. Evaluation of Groundwater Quality for Irrigation in Deep Aquifers Using Multiple Graphical and Indexing Approaches Supported with Machine Learning Models and GIS Techniques, Souf Valley, Algeria. Water 2023, 15, 182. https://doi.org/10.3390/w15010182
  • Masoud, M.; El Osta, M.; Alqarawy, A.; Elsayed, S.; Gad, M. Evaluation of Groundwater Quality for Agricultural under Different Conditions Using Water Quality Indices, Partial Least Squares Regression Models, and GIS Approaches. Appl. Water Sci. 2022, 12, 244. https://doi.org/10.1007/s13201-022-01770-9
  • Alqarawy, A.; El Osta, M.; Masoud, M.; Elsayed, S.; Gad, M. Use of Hyperspectral Reflectance and Water Quality Indices to Assess Groundwater Quality for Drinking in Arid Regions, Saudi Arabia. Water 2022, 14, 2311. https://doi.org/10.3390/w14152311
  • El-Safa, M.M.A.; Elsayed, S.; Elsherbiny, O.; Elmetwalli, A.H.; Gad, M.; Moghanm, F.S.; Eid, E.M.; Taher, M.A.; El-Morsy, M.H.E.; Osman, H.E.M.; et al. Environmental Assessment of Potentially Toxic Elements Using Pollution Indices and Data-Driven Modeling in Surface Sediment of the Littoral Shelf of the Mediterranean Sea Coast and Gamasa Estuary, Egypt. J. Mar. Sci. Eng. 2022, 10, 816. https://doi.org/10.3390/jmse10060816
  • Gad, M.; Saleh, A.H.; Hussein, H.; Farouk, M.; Elsayed, S. Appraisal of Surface Water Quality of Nile River Using Water Quality Indices, Spectral Signature and Multivariate Modeling. Water 2022, 14, 1131. https://doi.org/10.3390/w14071131
  • Saleh, A.H.; Elsayed, S.; Gad, M.; Elmetwalli, A.H.; Elsherbiny, O.; Hussein, H.; Moghanm, F.S.; Qazaq, A.S.; Eid, E.M.; El-Kholy, A.S.; et al. Utilization of Pollution Indices, Hyperspectral Reflectance Indices, and Data-Driven Multivariate Modelling to Assess the Bottom Sediment Quality of Lake Qaroun, Egypt. Water 2022, 14, 890. https://doi.org/10.3390/w14060890
  • El Osta, M.; Masoud, M.; Alqarawy, A.; Elsayed, S.; Gad, M. Groundwater Suitability for Drinking and Irrigation Using Water Quality Indices and Multivariate Modeling in Makkah Al-Mukarramah Province, Saudi Arabia. Water 2022, 14, 483. https://doi.org/10.3390/w14030483
  • Saleh, A.H.; Gad, M.; Khalifa, M.M.; Elsayed, S.; Moghanm, F.S.; Ghoneim, A.M.; Danish, S.; Datta, R.; Moustapha, M.E.; Abou El-Safa, M.M. Environmental Pollution Indices and Multivariate Modeling Approaches for Assessing the Potentially Harmful Elements in Bottom Sediments of Qaroun Lake, Egypt. J. Mar. Sci. Eng. 2021, 9, 1443. https://doi.org/10.3390/jmse9121443
  • Khadr, M.; Gad, M.; El-Hendawy, S.; Al-Suhaibani, N.; Dewir, Y.H.; Tahir, M.U.; Mubushar, M.; Elsayed, S. The Integration of Multivariate Statistical Approaches, Hyperspectral Reflectance, and Data-Driven Modeling for Assessing the Quality and Suitability of Groundwater for Irrigation. Water 2021, 13, 35. https://doi.org/10.3390/w13010035
  • Elsayed, S.; Ibrahim, H.; Hussein, H.; Elsherbiny, O.; Elmetwalli, A.H.; Moghanm, F.S.; Ghoneim, A.M.; Danish, S.; Datta, R.; Gad, M. Assessment of Water Quality in Lake Qaroun Using Ground-Based Remote Sensing Data and Artificial Neural Networks. Water 2021, 13, 3094. https://doi.org/10.3390/w13213094
  • Elsayed, S.; Gad, M.; Farouk, M.; Saleh, A.H.; Hussein, H.; Elmetwalli, A.H.; Elsherbiny, O.; Moghanm, F.S.; Moustapha, M.E.; Taher, M.A.; Eid, E.M.; Abou El-Safa, M.M. Using Optimized Two and Three-Band Spectral Indices and Multivariate Models to Assess Some Water Quality Indicators of Qaroun Lake in Egypt. Sustainability 2021, 13, 10408. https://doi.org/10.3390/su131810408
  • Gad, M.; Abou El-Safa, M.M.; Farouk, M.; Hussein, H.; Alnemari, A.M.; Elsayed, S.; Khalifa, M.M.; Moghanm, F.S.; Eid, E.M.; Saleh, A.H. Integration of Water Quality Indices and Multivariate Modeling for Assessing Surface Water Quality in Qaroun Lake, Egypt. Water 2021, 13, 2258. https://doi.org/10.3390/w13162258
  • Abou El-Safa, M.M.; Gad, M.; Eid, E.M.; Alnemari, A.M.; Almarshadi, M.H.; Alshammari, A.S.; Moghanm, F.S.; Saleh, A.H. Environmental Risk Assessment of Petroleum Activities in Surface Sediments, Suez Gulf, Egypt. J. Mar. Sci. Eng. 2021, 9, 473. https://doi.org/10.3390/jmse9050473
  • Elsayed, S.; Hussein, H.; Moghanm, F.S.; Khedher, K.M.; Eid, E.M.; Gad, M. Application of Irrigation Water Quality Indices and Multivariate Statistical Techniques for Surface Water Quality Assessments in the Northern Nile Delta, Egypt. Water 2020, 12, 3300. https://doi.org/10.3390/w12123300
  • Gad, M.; El Osta, M. Geochemical Controlling Mechanisms and Quality of the Groundwater Resources in El Fayoum Depression, Egypt. Arab J Geosci 2020, 13, 861. https://doi.org/10.1007/s12517-020-05882-x
  • Gad, M.; El-Hendawy, S.; Al-Suhaibani, N.; Tahir, M.U.; Mubushar, M.; Elsayed, S. Combining Hydrogeochemical Characterization and a Hyperspectral Reflectance Tool for Assessing Quality and Suitability of Two Groundwater Resources for Irrigation in Egypt. Water 2020, 12, 2169. https://doi.org/10.3390/w12082169
  • Gad, M.; Elsayed, S.; Moghanm, F.S.; Almarshadi, M.H.; Alshammari, A.S.; Khedher, K.M.; Eid, E.M.; Hussein, H. Combining Water Quality Indices and Multivariate Modeling to Assess Surface Water Quality in the Northern Nile Delta, Egypt. Water 2020, 12, 2142. https://doi.org/10.3390/w12082142
  • Gad, M.; El-Hattab, M. Integration of water pollution indices and DRASTIC model for assessment of groundwater quality in El Fayoum Depression, Western Desert, Egypt. J. Afr. Earth Sci. 2019, 158. https://doi.org/10.1016/j.jafrearsci.2019.103554
  • Gad, M.; Dahab, K.; Ibrahim, H. Applying of a Geochemical Model on the Nubian Sandstone Aquifer in Siwa Oasis, Western Desert, Egypt. Environ. Earth Sci. 2018, 77, 401. https://doi.org/10.1007/s12665-018-7580-6
  • Gad, M.; Saad, A. Hydrogeochemical evaluation of fractured Limestone aquifer by applying a geochemical model in eastern Nile Valley, Egypt. Environ. Earth Sci. 2017, 76, 641. https://doi.org/10.1007/s12665-017-6974-1
  • Gad, M.; El-Hattab; Galal, Sh. Assessment of the Miocene aquifer in Wadi El Farigh area by using GIS techniques. NRIAG Journal of Astronomy and Geophysics 2016, 5, 463-473. https://doi.org/10.1016/j.nrjag.2016.11.001
  • Gad, M.; Dahab, K.; Ibrahim, H. Impact of Iron Concentration as a Result of Groundwater Exploitation on the Nubian Sandstone Aquifer in El Kharga Oasis, Western Desert, Egypt. NRIAG Journal of Astronomy and Geophysics 2016, 5, 216–237. https://doi.org/10.1016/j.nrjag.2016.04.003
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