Paper Information

Journal:   INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH (IJER)   FALL 2014 , Volume 8 , Number 4; Page(s) 903 To 912.
 
Paper: 

SOLID PHASE EXTRACTION OF ORGANOCHLORINE PESTICIDES RESIDUES IN GROUNDWATER (AKKAR PLAIN, NORTH LEBANON)

 
 
Author(s):  EL OSMANI R., NET S.*, DUMOULIN D., BAROUDI M., BAKKOUR H., OUDDANE B.
 
* UNIVERSITE LILLE 1, EQUIPE CHIMIE ANALYTIQUE ET MARINE, UMR CNRS 8217 GEOSYSTEMES 59655 VILLENEUVE D’ASCQ CEDEX, FRANCE
 
Abstract: 

Due to the uncensored use of pesticides in the agricultural regions of Lebanon, the contamination risks of drinking water by organic residues increase periodically in planting seasons. No previous work have been considered in North Lebanon plain concerning pesticide pollution though it is the second agricultural zone in Lebanon with an excessive activity. In this context, the aim of this study was to evaluate the contamination and to map the pollution level of groundwater by organochlorine pesticides in Northern Lebanon. Solid-phase extraction (SPE) cartridge embedded with Hydrophilic-lipophilic-balanced (HLB) copolymer were used for the isolation and trace enrichment of pesticide from water samples followed by gas chromatography coupled with mass spectrometry (GC/MS) to quantify pesticide concentrations. The levels of organochlorine pesticide recorded in groundwater of Akkar district exceeded the limits set by the Stockholm Convention on persistent organic pollutants with total amounts that can reach 14.2 mg/L. Contamination was also found to be more important inland with the frequent presence of banned pesticide such HCH isomers, 4, 4’-DDT, aldrin and endrin. Appropriate remedial measures and systematic investigation of Organochlorine residues in water resources of the AKKAR district are necessary to check further aggravation of the situation.

 
Keyword(s): SPE, HLB, GC-MS, ORGANOCHLORINE, GROUNDWATER, LEBANON
 
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