Thousands told to stay home a day after chemical plant fire sent a plume containing chlorine high into the air

(CNN) — Thousands of people were told to stay home with their windows shut Monday after a fire at a Georgia industrial plant caused a chemical reaction that prompted around 17,000 people to evacuate Sunday and left potentially harmful chlorine lingering in the air.

Residents and businesses were told to evacuate the area around the BioLab plant in Conyers after the blaze broke out early Sunday morning. A shelter-in-place advisory is ongoing for around 90,000 people in surrounding Rockdale County.

The plume from the chemical reaction that followed the outbreak of the fire could be seen for miles – and officials on Monday were cautioning those still in the area to stay indoors with their windows closed and air conditioners off. BioLab manufacturers pool and spa treatment products.

Air quality surveys conducted by state and federal agencies “revealed the harmful irritant chlorine” coming from the facility, county officials said in a news release Monday morning. Exposure to chlorine can cause burning of the eyes, nose and mouth, according to the US Centers for Disease Control and Prevention . It can also lead to coughing, choking, nausea, vomiting, headache and dizziness.

County facilities in Rockland County remained closed Monday.

Surrounding communities have also been affected, with residents in nearby counties describing the smell of bleach or chemicals in the air.

Officials in Fulton County, to the west of Rockdale County, are investigating reports of a haze and a strong chemical smell believed to be related to the plume from the plant, Atlanta-Fulton County Emergency Management said Monday.

Conyers is about 30 miles east of Atlanta.

In Gwinnett County , to the north of Conyers, residents also reported a haze and chemical smell. Meanwhile Newton County, to the south of the plant, closed its schools and offices Monday. To the west of the plant, some schools and daycare centers in Dekalb County closed their doors Monday.

Interstate-20 near the plant reopened in both directions Monday after authorities shut down portions of the highway Sunday citing “unpredictable path and wind direction, which could change the direction of the irritants in the air.”

The fire broke out on the roof of the plant around 5 a.m. Water from what officials earlier described as a malfunctioning sprinkler head “came in contact with a water reactive chemical and produced a plume,” county officials said in a statement.

Firefighters were able to contain the fire, but it reignited hours later, Rockdale County Sheriff Eric Levett said in a video message posted on Facebook .

The fire was extinguished around 4 p.m., Rockdale County Fire and Rescue Chief Marian McDaniel said , but the building’s roof later collapsed.

KIK Consumer Products, which owns BioLab, said its employees at the plant are all accounted for and no injuries were reported.

“We continue to work collaboratively with first responders and local authorities and have deployed specialized teams from out of state to the site to bolster and support their efforts. We are all focused on remediating the situation as rapidly as possible,” the company said in a statement Monday.

It was “all hands on deck” situation Sunday, Rockdale County Chairman Oz Nesbitt told CNN’s Jessica Dean. “All of our resources have been dispatched and deployed,” Nesbitt said. “Every available agency, GEMA, FEMA, everyone is on deck here in Rockdale County, we’re managing this situation as we try to get it under control.”

The roof of the building caved in after the blaze and Nesbitt described the damage as a “complete collapse.”

In September 2020 , BioLab experienced a “thermal decomposition event” that also led to a fire that temporarily closed I-20.

In its final report on that incident, the US Chemical Safety Board found strong winds from Hurricane Laura damaged the lab’s warehouse, allowing rainwater into the building. The water came in contact with a chemical and initiated a reaction that caused the fire.

This story has been updated with additional information.

The-CNN-Wire

™ & © 2024 Cable News Network, Inc., a Warner Bros. Discovery Company. All rights reserved.

​THE-CNN-WIRE (TM) & © 2024 CABLE NEWS NETWORK, INC., A TIME WARNER COMPANY. ALL RIGHTS RESERVED.