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Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/7224

Title: Assessment Of Synthetic Pyrethroids Residues In The Waters And Sediments From The Weija Lake In Ghana
Authors: Afful, Samuel
Awudza, Johannes A. M.
Osae, Shiloh
Twumasi, Stevester K.
Keywords: synthetic pyrethroid residues
Weija lake
lake water
Issue Date: 2013
Publisher: Eur. Chem. Bull.
Citation: Eur. Chem. Bull. 2013, 2(4)
Abstract: The spectrum and levels of synthetic pyrethroids in the Weija Lake waters and sediments have been investigated as a case study. Sampling was done at eight sampling locations along the Lake. Liquid-liquid extraction using 3:1 acetone/hexane mixture and soxhlet extraction were used for extraction of the pyrethroid from the water and sediment samples respectively. Analysis of the pyrethroids extracts was done with gas chromatography equipped with electron capture detector. In all, seven synthetic pyrethroids namely, fenpropathrin, cyfluthrin, cypermethrin, fenvalerate, deltamethrin, allethrin, and permethrin were detected in the Lake waters. In addition to the above pyrethroids, bifenthrin and lambda cyhalothrin were detected in the sediments. Cyfluthrin was the most ubiquitous pyrethroid in the Weija water with 100 percent occurrence, while, cyfluthrin, fenvalerate were the most ubiquitous pyrethroids. Both were detected with 87.5 percent occurrence. The concentrations of the detected pyrethroids ranged from 0.10 – 3.50 ng L-1 and 0.15 – 6.60 ng g-1 for the water and sediment samples respectively. The concentrations of detected pyrethroids in the Weija waters were far below maximum residue limits set by European Union (EU) and the Japanese Government. The results therefore suggest that pyrethroids residue concentration in the Weija waters may not pose health hazard in terms of synthetic pyrethroid pollution.
Description: Article published in Eur. Chem. Bull. 2013, 2(4).
URI: http://hdl.handle.net/123456789/7224
ISSN: 183-187
Appears in Collections:College of Science

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