KEDOUGOU, Senegal (AP) — The quickest way to separate gold from rock, Sadio Camara says, is with a drop of mercury. She empties a dime-sized packet of the silvery liquid into a plastic bucket of muddy sediment outside her home in southeastern Senegal. With bare hands and no mask, she swirls the mixture as her children look on.
“I know mercury isn’t good for your health — that’s why I don’t drink the water it comes into contact with,” she said. “I only process small amounts of gold, so there’s no danger.” But even small-scale exposure can carry serious risks. Across West Africa, mercury — a potent neurotoxin — remains the dominant method for extracting gold from ore in the region’s booming informal mining sector, much of it illegal and unregulated.
In Senegal’s gold-rich Kedougou region, women like Camara use the metal regularly, often without protective gloves and masks, to make a living. Mercury exposure can cause irreversible brain damage, developmental delays, tremors and loss of vision, hearing and coordination. Once released, it spreads easily through air, water and soil. Particularly after heavy rains, it contaminates rivers, poisons fish and accumulates up the food chain.
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