Other counties reporting smell & haze: The City of Atlanta says fire personnel and Hartsfield-Jackson airport personnel are conducting air quality testing. Many in Gwinnett County have reported a haze and smell, and Gwinnett County Public Schools has canceled outdoor activities for Monday, Sept. 30, and cut outside air from coming into buildings.

CONYERS, Ga. — A large chemical fire broke out early Sunday at a lab in Conyers and has been sending a jarring plume of black smoke into the air all day, with much of the city in an evacuation zone. RELATED: 'I was very, very startled' | Resident describes early morning wake-up from police, evacuation over Conyers chemical fire