According to Georgia Emergency Management Association, Metro Atlanta will wake up to a haze Thursday and possibly the smell of chlorine. And nighttime is when that smoke and air settles towards the ground. It is the reason officials want you to shelter inside in these overnight hours.

A fire broke out Sunday at the facility of a company that makes pool and spa treatments and sprinkler system water reacted with chemicals on site.

Parts of Atlanta were covered by a haze and the smell of chlorine on Monday, and residents are concerned about the health risk of exposure to chemicals. Here's what some experts say.