title: Downstream assessment of chlorinated organic compounds in the bed-sediment of Aiba Stream, Iwo, South-Western, Nigeria.
abstract: This study investigated levels and distribution pattern of chlorinated organic compounds (COCs) otherwise known as organochlorine pesticides in sediment samples at downstream of Aiba watercourse in Iwo, South-western Nigeria. Soxhlet extraction method followed by GC-ECD analysis were used to ascertain levels of COCs in the sediment samples collected from four different locations along the stream. Eighteen COCs were detected with trans permethrin and endosulfan sulfate having highest and lowest concentrations of 375.70 ± 689.41 and 0.03 ± 0.05 µg/g, respectively. The varying levels of COCs as obtained in this study were attributed to organochlorine pesticides contamination emanated from different agricultural practices and domestic sewage loads of the study area.
authors.affiliation: Department of Chemistry and Industrial Chemistry, Bowen University, P. M. B. 284, Iwo, Nigeria.
authors.forename: Godwin O
authors.initials: GO
authors.lastname: Olutona
authors.affiliation: Department of Chemistry, Cape Peninsula University of Technology, Cape Town, South Africa.
authors.forename: Stephen O
authors.initials: SO
authors.lastname: Olatunji
authors.affiliation: Institute for Entrepreneurship and Development Studies, Obafemi Awolowo University, Ile-Ife, Nigeria.
authors.forename: Joshua F
authors.initials: JF
authors.lastname: Obisanya
keywords: Contamination; Organochlorine pesticides; Sediment; Stream
references.citation: Environ Sci Technol. 2008 Sep 15;42(18):7003-9
references.pmid: 18853823
references.citation: Environ Int. 2005 Aug;31(6):799-804
references.pmid: 16024080
references.citation: J Chromatogr A. 2002 Aug 30;968(1-2):191-9
references.pmid: 12236503
references.citation: Arh Hig Rada Toksikol. 2008 Dec;59(4):261-70
references.pmid: 19064363
references.citation: World Health Organ Tech Rep Ser. 1990;798:1-77
references.pmid: 2123364
references.citation: Environ Res. 2002 Mar;88(3):174-81
references.pmid: 12051795
references.citation: Sci Total Environ. 2014 May 15;481:55-60
references.pmid: 24583652
references.citation: Sci Total Environ. 2010 Jan 1;408(3):594-606
references.pmid: 19906406
references.citation: Sci Total Environ. 2014 Feb 1;470-471:1362-9
references.pmid: 24029814
references.citation: Cancer Causes Control. 2001 Nov;12(9):773-84
references.pmid: 11714104
references.citation: Front Biosci. 2008 Jan 01;13:1240-9
references.pmid: 17981626
references.citation: Food Chem Toxicol. 2001 May;39(5):407-22
references.pmid: 11313107
references.citation: Chemosphere. 2012 Jan;86(3):286-92
references.pmid: 22123529
references.citation: Environ Health Perspect. 1998 Feb;106 Suppl 1:11-56
references.pmid: 9539004
references.citation: Environ Sci Technol. 2007 May 15;41(10):3408-14
references.pmid: 17547156
references.citation: Chemosphere. 2009 Oct;77(5):663-72
references.pmid: 19709715
references.citation: Chemosphere. 2008 May;72(1):21-4
references.pmid: 18397799
references.citation: J Biochem Mol Toxicol. 2012 Jun;26(6):241-7
references.pmid: 22645066
references.citation: Toxicol Lett. 1992 Dec;64-65 Spec No:429-36
references.pmid: 1281937
references.citation: Sci Total Environ. 2001 Feb 5;266(1-3):195-202
references.pmid: 11258817
references.citation: Chemosphere. 2013 Jul;92(3):317-21
references.pmid: 23648330