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Geochemical Hazards

Potentially hazardous geochemical element-anomalies were identified on existing geochemical maps of South Africa, which have been generated over the last three decades by the Geochemistry Unit of the Council for Geoscience. These anomalous element accumulations are either natural or anthropogenic in origin and may or may not be hazardous to man and animals.

The report by Maya and Cloete (2011) provides background information of some of the geochemical anomalies detected on the geochemical maps and identify potentially harmful effects associated with these geochemical anomalies. Geochemical element anomalies mapped include arsenic (As), lead (Pb), zinc (Zn), copper (Cu), nickel (Ni), chrome (Cr), vanadium (V), uranium (U) and thorium (Th).

The report by Musekiwa (2014) describes the mapping of geochemical anomalies using remote sensing imagery (ASTER) data and data mining techniques.

Maya, M., & Cloete. 2011. Geochemical hazard mapping. Council for Geoscience Report Number: 2011-0064.

Download the report.