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dc.contributor.authorSteyn, L.
dc.contributor.authorBouwman, H.
dc.contributor.authorMaina, J.N.
dc.date.accessioned2018-03-01T07:07:01Z
dc.date.available2018-03-01T07:07:01Z
dc.date.issued2018
dc.identifier.citationSteyn, L. et al. 2018. Associations between DDT and egg parameters of the House Sparrow Passer domesticus from the Thohoyandou area of South Africa. Chemosphere, 198:249-256. [https://doi.org/10.1016/j.chemosphere.2018.01.125]en_US
dc.identifier.issn0045-6535
dc.identifier.issn1879-1298 (Online)
dc.identifier.urihttp://hdl.handle.net/10394/26447
dc.identifier.urihttps://doi.org/10.1016/j.chemosphere.2018.01.125
dc.identifier.urihttps://www.sciencedirect.com/science/article/pii/S0045653518301425
dc.description.abstractThis study investigated whether the pesticide DDT (Dichlorodiphenyltrichloroethane) and its metabolites, DDE (Dichlorodiphenyldichloroethylene) and DDD (Dichlorobischlorophenylethane) were associated with adverse effects on multiple endpoints of the eggs of House Sparrows from the Thohoyandou area in South Africa, where DDT is used for malaria control. Eggshell thickness, pore numbers, pore shapes, and volume densities of the pores were measured to test possible adverse effects. Analysis was done using a scanning electron microscope and the concentrations of the pesticides were determined with the aid of gas chromatography-mass spectrometry. The highest concentrations recorded was p,pʹ-DDE at 0.84 μg/g wm (wet mass) in the eggs collected from Mangondi (a site last sprayed five years before sampling). Overall, the concentrations of total DDT recorded in this study were lower than reported by most other studies conducted in the same area. The association between DDT concentrations and House Sparrows eggshells were noticeable in the eggshell thicknesses, with significant differences between the eggs collected from Muledane (a site last sprayed 30 years before sampling) and Makula (a site sprayed both years of sampling) (P < 0.0022). Limited differences were found between the pore numbers and pore density of eggshells from the various sites. It may be that the limited effect on the pore numbers and volume densities of the pores are associated with low concentrations of DDT in the House Sparrow eggsen_US
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.subjectPasser domesticusen_US
dc.subjectDDTen_US
dc.subjectEggshell thicknessen_US
dc.subjectPore numbersen_US
dc.subjectVolume densityen_US
dc.subjectLimpopoen_US
dc.titleAssociations between DDT and egg parameters of the House Sparrow Passer domesticus from the Thohoyandou area of South Africaen_US
dc.typeArticleen_US
dc.contributor.researchID10063773 - Bouwman, Hindrik


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