Distributions of organochlorine pesticides and polychlorinated biphenyl in surface water from Bizerte Lagoon, Tunisia

被引:16
|
作者
Necibi, Mouna [1 ]
Mzoughi, Nadia [1 ,2 ]
Yahia, Mohamed Nejib Daly [3 ]
Pringault, Olivier [4 ]
机构
[1] Inst Natl Sci & Technol Mer, Lab Milieu Marin, Port De Peche 2060, La Goulette, Tunisia
[2] Inst Super Sci & Technol Environm Borj Cedria, Dept Phys Chim & Proc, Borj Cedria, Tunisia
[3] Fac Sci Bizerte, Dept Sci Vie, Lab Biodivers & Fonctionnement Syst Aquat, Zarzouna 7021, Tunisia
[4] Univ Montpellier 2, ECOSYM, UMR 5119, F-34095 Montpellier, France
关键词
Pesticides; Surface seawater; Bizerte lagoon; Marine environment; POLYBROMINATED DIPHENYL ETHERS; CHLORINATED PESTICIDES; SEDIMENTS; RIVER; RESIDUES; CHINA; PCBS; SEA; FRANCE; MILK;
D O I
10.1080/19443994.2015.1024935
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
The contamination of the marine environment by organic pollutants is a matter of great concern. Bizerte Lagoon is the second largest lagoon in Tunisia, and is known for different industry and fishing activities. The objective of this work is to investigate the distribution of seven polychlorinated biphenyls (PCBs) and nine organochlorine (OCPs) pesticides in water samples collected from the Lagoon of Bizerte. Extraction of water samples was performed by liquid-liquid extraction with hexane. Gas chromatography with Ni-63 electron capture detector was used to perform qualitative and quantitative determinations. The average concentrations of OCPs were 0.42 and 14.92ngL(-1). For PCBs the concentrations range between 3 and 10.4ngL(-1). The predominant PCB congeners in the surface water were PCB 28 (0.2-1.4ngL(-1)) and PCB 52 (0.8-3.5ngL(-1)). The most widespread OCPs were DDTs with a concentration varied between ND and 8.51ngL(-1), heptachlor (ND and 7.83ngL(-1)), and endrin (ND and 1.51ngL(-1)). These concentrations are generally similar to the background levels from the Mediterranean Sea.
引用
收藏
页码:2663 / 2671
页数:9
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