Assessment of contamination by organochlorine pesticides and polychlorinated biphenyl’s from Oualidia lagoon water (Morocco)

Lakhlalki, H.; Jayed, Maria; Benbrahim, Samir; Rharbi, N.; Benhra, Ali; Moutaki, B.; Maanan, Mohamed

doi:10.1007/s12517-020-05761-5

Cited by 7 publications

(1 citation statement)

References 45 publications

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“…The contamination of marine waters by OCPs has been mentioned by authors worldwide. The maximum concentration of ∑8OCPs in our study was lower than that of ∑7OCPs recorded in Oualidia Lagoon [14], the maximum concentration of ∑DDT was higher than that recorded in Bizerte Lagoon [15], and the dieldrin and aldrin concentrations were lower than those found in Lagos Lagoon [16].…”

Section: Resultscontrasting

confidence: 88%

Characterization of organochlorine pesticides in the surface waters of Marchica Lagoon, Morocco

Kaddouri,

Oujidi,

Kabriti

et al. 2024

E3S Web Conf.

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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.

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Section: Resultscontrasting

confidence: 88%