The World Health Organisation (WHO) is collecting samples west of Johannesburg to see if residents near SA’s biggest city are suffering from excessive uranium pollution due to ore dumps from 130 years of gold mining.The Geneva-based United Nations unit will analyse hair samples from about 1,600 people living in neighbourhoods near mine dumps, mainly west of Johannesburg, it said. Uranium, which can cause cancer, can be ingested through drinking contaminated water or inhaling dust."The objective is to study the environmental exposure to uranium and its decay products of the population living in close proximity to gold mine tailing dumps in and around Johannesburg," the WHO said. "These residue areas are often densely populated and create the potential for substantial levels of exposure to uranium."Johannesburg was spawned by a gold rush when the metal was discovered in the 1880s with the Witwatersrand, the world’s biggest gold field, arcing around the south and west of the city. Whil...
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