La Oroya, Peru
La Oroya, Peru is a mining town in the Peruvian Andes and the site of a poly-metallic smelter since 1922. The area is highly contaminated by mining waste and by dust and acidic fumes from the smelter. Surveys have confirmed high blood lead levels in children and sulfur dioxide levels also exceeded WHO limits.
Unfortunately, it’s notorious for being one of the most polluted areas on earth. The local government has been unable to clean up the pollution caused by the metal smelter in La Oroya. It is the major contributor to the pollution problem. This mining town emits acidic fumes directly from the smelter into the air. Children now have extremely high levels of sulfur dioxide and lead in their blood as a result (Bilaterals).