A total of 1,500 people had to be evacuated after the explosion and fire at the Chemtool plant in Rockton, and it could go on burning for days.
CBS 2's Jermont Terry reports.
Chemtool 'Confident' Materials Burned In Rockton Chemical Plant Fire 'Pose No Health Threat'
CBS 2 Chicago
The company said health officials will continue to monitor air and water sources with additional testing.
