Residents of Lourdes de Agua Caliente, Cartago, Costa Rica, have spoken out about dust emissions from a nearby Holcim Costa Rica plant.

The Ministry of Health visited the plant in question this week, ordering it to control its dust emissions. Reports of dust clouds date back three years and have reportedly been a regular occurrence ever since. A company official from Holcim Costa Rica said the “dust is from primary materials, limestone rock, which doesn’t cause any environmental or health damages.”