Organochlorine pesticide residues in sediments from the Uganda side of Lake Victoria

Simple item page
dc.contributor.authorWasswa, John
dc.contributor.authorKiremire, Bernard T.
dc.contributor.authorNkedi-Kizza, Peter
dc.contributor.authorMbabazi, Jolocam
dc.contributor.authorSsebugere, Patrick
dc.date.accessioned2022-11-14T15:01:57Z
dc.date.available2022-11-14T15:01:57Z
dc.date.issued2011
dc.description.abstractOrganochlorine (OC) residues were analysed in 117 sediment samples collected from four bays of the Uganda side of Lake Victoria. The sediments were collected with a corer at a depth of 0–20 cm, and extracted for OC residues using a solid dispersion method. The extracts were cleaned using gel permeation chromatography and analysed for pesticide residues using a gas chromatograph (GC) equipped with an electron capture detector. The results were confirmed using a GC equipped with a mass spectrometer (MS). A total of 16 OC residues, most of them persistent organic pollutants (POPs) were identified and quantified. The OC residue levels were expressed on an oven dry weight (d.w.) basis. Endosulphan sulphate, in the range of 0.82–5.62 lg kg 1 d.w., was the most frequently detected residue. Aldrin and dieldrin were in the ranges of 0.22–15.96 and 0.94–7.18 lg kg 1 d.w., respectively. DDT and its metabolites lay between 0.11–3.59 for p,p0-DDE, 0.38–4.02 for p,p0-DDD, 0.04–1.46 for p,p0-DDT, 0.07–2.72 for o,p0-DDE and 0.01–1.63 lg kg 1 d.w. for o,p0-DDT. The levels of c-HCH varied from 0.05 to 5.48 lg kg 1 d.w. Heptachlor was detected only once at a level of 0.81 lg kg 1 d.w., while its photo-oxidation product, heptachlor epoxide, ranged between non-detectable (ND) to 3.19 lg kg 1 d.w. Chlordane ranged from ND to 0.76 lg kg 1 d.w. Based on the threshold effect concentration (TEC) for fresh water ecosystems, aldrin and dieldrin were the only OCs that seemed to be a threat to the lake environment.en_US
dc.identifier.citationWasswa, J., Kiremire, B. T., Nkedi-Kizza, P., Mbabazi, J., & Ssebugere, P. (2011). Organochlorine pesticide residues in sediments from the Uganda side of Lake Victoria. Chemosphere, 82(1), 130-136. doi:10.1016/j.chemosphere.2010.09.010en_US
dc.identifier.other10.1016/j.chemosphere.2010.09.010
dc.identifier.urihttps://nru.uncst.go.ug/handle/123456789/5239
dc.language.isoenen_US
dc.publisherChemosphereen_US
dc.subjectPersistent organic pollutantsen_US
dc.subjectPesticidesen_US
dc.subjectMetabolitesen_US
dc.subjectLake Victoriaen_US
dc.subjectSedimenten_US
dc.titleOrganochlorine pesticide residues in sediments from the Uganda side of Lake Victoriaen_US
dc.typeArticleen_US
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Organochlorine pesticide residues in sediments from the Uganda side.pdf
Size:
635.76 KB
Format:
Adobe Portable Document Format
Description:
Article
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Natural Sciences