If you haven't seen or smelled it chances are you will soon. 3 South Florida counties are dealing with the effects of a stubborn wildfire burning on the rim of Lake Okeechobee.

"In the morning it's very smoky and sometimes driving you feel the pollution in the air," says Sandra Ramlethan.

Concern has risen among residents of Western Palm Beach county. Smoke and haze fill the air keeping outdoor activities to a minimum.

"We've been out a couple different times and we're going out now but it stinks," says Mark Slater.

Florida's Division of Forestry says dry marsh and grass on the interior rim of Lake Okeechobee have been burning for five days after being intentionally set. Crews have it contained and will let it burn out.

"It's 5.5 miles long, it's 4,000 acres and has the potential to burn up to 6,000 acres," says Melissa Yunas.

Residents to the East and South have felt the biggest impact from the smoke. So much so Palm Beach County's Health Department has been monitoring the air quality index which has tapped into moderate and unhealthy levels.

"We are issuing a warning or advisory to people with heart problems, heart disease, lung problems, older people, and children who are asthmatic to modify activity," says Tim O'Connor.

For now smoke and haze will continue to permeate through the air giving Forestry officials a run for their money leaving residents in its smoky path running for the indoors.

A suspected arson fire that has been burning since late Sunday in Glades County is causing problems for people living all along the eastern coastline from Indian River County all the way south to Broward County.

Many people have complained about a foul odor they can smell. Others also describe the air in their neighborhoods as being hazy. The fire is so large that the GOES weather satellite can see it from space.

The smoke and odor originate from a fire that is burning thousands of acres in Lake Okeechobee. It began as two separate wildfires that joined together when the winds shifted Sunday.

Several agencies are joining forces to find the person(s) responsible for setting the fire.