Georgia’s Environmental Protection Division and the EPA said Wednesday that chemical reaction plumes from the fire at the BioLab facility in Rockdale County on Sunday will settle close to the ground and move west toward Atlanta.

The Georgia Poison Center taking in nearly 700 calls about the Biolab Fire since it began Sunday morning, according to the center’s director Dr. Gaylord Lopez. “A good number of these people are calling in with symptoms consistent with exposure to chlorine and chlorine related compounds,

Public health officials insist the air, fouled by burning “chlorines, chloramine and chlorine compounds” from a chemical plant, is safe to breathe but they have released few details.