A BioLab manufacturing facility in Conyers is continuing to release chlorine, chloramines and chlorine compounds in an incident that originated from a small rooftop fire in the early morning of September 29. The fire activated a sprinkler system and doused water-reactive trichloroisocyanuric acid (TCCA) inside the building. This initiated a chemical decomposition reaction that released chlorine gas into the atmosphere. 

Love Family Professor Sally Ng in the School of Earth and Atmospheric Sciences confirms the morning after the fire, the number of chlorine-containing particles detected in the air at the Ascent's Decatur site, around 28km from the BioLab plant, had increased by about 1400 times. Bromine-containing particles in the air increases by about 170 times, she says.