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Dr. Nezha Mejjad

Nezha Mejjad

PhD (Geochemistry and Environment)
Faculty of Sciences Ben M'sik
Hassan II University


  ECN Member

Expertise & Interests

Overview / specialty        ?AREAS OF EXPERTISE
Geochemistry; Environment; Radiochemistry; Radiometric dating; Marine pollution; Sediment dynamics.
• Main field
Geochemistry; Environment; Radiochemistry & radionuclides; Radiometric dating; Marine pollution; Sediment dynamics.
• Other fields
Sustainable development; Blue growth; Human and climate impact; Mineralogy; Grain size analysis.
?Current research interest
Rare earth elements geochemistry; Ecosystem functioning; Pollution assessment; Human impact on Environment. Human-nature interactions.
PAGES interests        ECN, Global Soil and Sediment - GloSS, Ocean circulation and carbon - OC3, Volcanic Impacts on Climate and Society - VICS, World Climate Research Programme
Topics        Biogeochemical processes, Chronology, Climate dynamics, Climate variability, Ecosystem processes, Human impacts & interactions, Ocean dynamics, Sustainability, Water
Timescales        Anthropocene (last 100 years), Future projection
Regions        Africa, Global, Mediterranean
Archives        Geomorphology, Lake sediments, Ocean sediments
Sector        Academia / Education, Research, Science management
Discipline        Chronology, Geochemistry, Sedimentology
Computers        R
Laboratory        Geochemistry, Grain-size, Isotopes, Radionuclides, XRF



1. Cherif K, Vodopivec M, Mejjad N, Silva E, Simonovi? S, Boulaassal H. 2020. COVID-19 impact on coastal water quality using WST Sentinel-3 data: Case of Tangier, Morocco. Water (ISSN 2073-4441) Water 2020, 12, 2638; doi:10.3390/w12092638

2. Suresh, D. Chauhan, A. Othmani, N. Bhadauria, S. Aswin, J. Jose, N. Mejjad. Diagnostic Comparison of Changes in air Quality over China before and during the COVID-19 Pandemic. (Under review in Air Quality, Atmosphere & Health; Preprint in Research square). Doi: 10.21203/rs.3.rs-30482/v1

3. N. Mejjad, A. Laissaoui, O. El-Hammoumi, N. H. Hassen, A. Fekri, A. Benkdad, H. Amsil. (2020). Radiometric approach to track human impact on sediment dynamics: Oualidia lagoon as case study, (Morocco). International Journal of Environmental Analytical Chemistry. https://doi.org/10.1080/03067319.2020.1782394

4. N. Mejjad, A. Laissaoui A. Fekri, A. Benmhammed, O. El Hammoumi, E. Cherif. (2020). Does human activities growth lead to biodiversity loss in the Moroccan coastal lagoons? A diagnostic comparison study. In Proceedings of ACM GEOIT4W-2020, March 11–12, 2020, Al-Hoceima, Morocco, 5 pages.

5. N. H. Hassen, N, Reguigui, A. Helali, N. Mejjad, A. Laissaoui, A. Benkdad, M. Benmansour (2019). Evaluating historical sedimentation patterns in two different Mediterranean deep environments (Sardinia and Sicily Channels) Journal Mediterranean Marine Science (MMS). https://doi.org/10.12681/mms.19558.

6. Laissaoui, N. Mejjad, N. Ziad, H. Ait Bouh, O. El Hammoumi, A. Benkdad, A. Fekri (2018). “Detecting substantial increase of atmospheric 210Pb in Oualidia lagoon in the Moroccan Atlantic coast through sediment cores dating“. Environmental Monitoring and Assessment. DOI:10.1007/s10661-018-7046-z.

7. N. Mejjad, A. Laissaoui, O. El-Hammoumi, A. Fekri, H. Amsil, A. El-Yahyaoui, A. Benkdad (2018). Geochemical, radiometric, and environmental approaches for the assessment of the intensity and chronology of metal contamination in the sediment cores from Oualidia lagoon (Morocco). Environ Sci Pollut Res (2018). DOI :10.1007/s11356-018-2370-y.

8. Laissaoui, N. Mejjad, O. El Hammoumi, A. Benkdad, A. Fekri and M. Ghazi (2016) “ Evidence of Change in 210Pb Atmospheric Flux in the Oualidia Lagoon Inferred from Sediment Radiometric Dating” II International Conference On Radioecological Concentration Processes (50 years later) Seville, Spain, BOOK OF PROCEEDINGS. ISBN: 978-84-617-7629-0.

9. N. Mejjad, A. Laissaoui, O. El-Hammoumi, M. Benmansour, S. Benbrahim, H. Bounouira, A. Benkdad, F. Z. Bouthir, A. Fekri, M. Bounakhla, (2016) “Sediment geochronology and geochemical behavior of major and rare earth elements in the Oualidia Lagoon in the western Morocco”- J Radioanal Nucl Chem. 309:1133. DOI:10.1007/s10967-016-4714-8.