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Application of a Sediment Quality Index for the assessment and monitoring of metals and organochlorines in a premier conservation area

Gerber, Ruan; Smit, Nico J.; Ikenaka, Yoshinori; Wepener, Victor; Van Vuren, Johan H.J. (Springer, 2015)

The physical and chemical characteristics of surface sediments from a leading conservation area, namely the Kruger National Park, were determined in order to identify potential stressors in the systems that may contribute ...

Linking organochlorine exposure to biomarker response patterns in Anurans: a case study of Müller’s clawed frog (Xenopus muelleri) from a tropical malaria vector control region

Wolmarans, Nico J.; Du Preez, Louis H.; Ikenaka, Yoshinori; Smit, Nico J.; Wepener, Victor (Springer, 2018)

Organochlorine pesticides are highly persistent in aquatic ecosystems. Amphibians, specifically anurans, play an intricate part in the aquatic food web, and have very permeable skin which makes them prone to bioaccumulation ...

Assessment of DDT contamination in house rat as a possible bioindicator in DDT-sprayed areas from Ethiopia and South Africa

Yohannes, Yared Beyene; Ikenaka, Yoshinori; Wepener, Victor; Smit, Nico J.; Ito, Gengo (Springer, 2017)

Ethiopia and South Africa are among the few countries to still implement indoor residual spraying with dichloro-diphenyl-trichloroethane (DDT) for malaria vector control. In this study, we investigated the levels and ...

Fish consumption from urban impoundments: what are the health risks associated with DDTs and other organochlorine pesticides in fish to township residents of a major inland city

Pheiffer, Wihan; Wolmarans, Nico J.; Gerber, Ruan; Ikenaka, Yoshinori; Smit, Nico J.; Wepener, Victor; Pieters, Rialet (Elsevier, 2018)

Organochlorine pesticides (OCPs) in South Africa have for the most part been banned, except dichlorodiphenyltrichloroethane (DDT) which is still used as malaria vector control. The aim of this study was to determine OCP ...

Using Confocal Microscopy And Pigment Analyses To Detect Adverse Insecticide Effects In Non-Target Freshwater Diatom Species - A Proof-Of-Concept Using Nitzschia Palea

Kock, Anrich; Pheiffer, Wihan; Wepener, Victor; Smit, Nico J.; Taylor, Jonathan C. (Springer, 2023)

The persistence of insecticides in aquatic environments is a cause of concern and to date hardly any studies have focused on the effects that DDT and deltamethrin have on non-target freshwater diatom communities. The ...