| Issue |
E3S Web Conf.
Volume 502, 2024
2nd International Congress on Coastal Research (ICCR 2023)
|
|
|---|---|---|
| Article Number | 01004 | |
| Number of page(s) | 4 | |
| Section | Oceanography, Coastal Ecology and Resources | |
| DOI | https://doi.org/10.1051/e3sconf/202450201004 | |
| Published online | 11 March 2024 | |
Characterization of organochlorine pesticides in the surface waters of Marchica Lagoon, Morocco
1 Laboratory OLMAN-BPGE, Multidisciplinary Faculty of Nador, Mohamed First University, Oujda, Morocco
2 National Laboratory for Pollution Studies and Monitoring (LNESP), Rabat, Morocco
3 National Institute of Fisheries Research (INRH), Regional Centre Nador, Morocco
4 GEOPAC Research Center, Geophysics and Natural Hazards Laboratory, Scientific Institute, Mohamed V University, Rabat, Morocco
* Corresponding author: kaddouri.sanae@ump.ac.ma
The main objective of this initial study is to assess the extent of surface water contamination in Marchica Lagoon caused by organochlorine pesticides (OCPs) historically used in agriculture through a sampling network consisting of eight stations covering all areas of the lagoon during the 2022 summer season. Located on Morocco’s Mediterranean coast, the lagoon has undergone several restoration actions since 2010 to improve its environmental state. However, this ecosystem is under constant pressure from its watershed, which can convey water pollution from agricultural, industrial, mining, and domestic sources, making continuous monitoring essential. Eight organochlorine pesticides (Alpha HCH, Beta HCH, Gamma HCH, Aldrin, Dieldrin, DDD, DDE, and DDT) were detected by gas chromatography-mass spectrometry (GC-MS) using the SIM (Selected Ion Monitoring) method. The results revealed OCPs contamination of the lagoon’s surface waters; the spatial variation of total OCPs concentrations (Σ8OCPs) ranged from 7.58 to 18.79 ng/l. The predominant element detected was β-HCH (lindane), recorded between the Bouarg channel and Selouane wadi, an area characterized by intensive agriculture.
© The Authors, published by EDP Sciences, 2024
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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