View of the city of Antofagasta from the building where Chilean Jaqueline Jimenez used to live, opposite to the port, on March 9, 2017. An official study found that the dark black dust which covers much of the coastal city -which enjoys the economic benefits of housing copper mining giants such as BHP Billiton or state-run Codelco- contained at least 16 different metals including lead, molybdenum, cesium and arsenic. It is a dense powder that impregnates the hands, which is difficult to remove from the surfaces and that the coastal wind expands throughout this city located about 1,200 km north of Santiago. / AFP PHOTO / Martin BERNETTI (Photo credit should read MARTIN BERNETTI/AFP/Getty Images)
