(WHAS11) - People in Oldham County are breathing a little easier, thanks in part to a smoking ban in workplaces.

That ordinance has now been in place for a little more than a year.

The University of Kentucky monitored the air quality inside restaurants and entertainment venues in the county before and after the smoking ordinance went into effect.

The results of the study found major improvements with the air.

Liz burrows of the Oldham County Health Educator said, “Oldham County has taken an amazing step in protecting public health and improving the quality of life for residents, visitors and workers especially- with an 83 percent decrease in indoor air pollution. That’s pretty remarkable.”

This study comes after another University of Kentucky study released in February found Louisville’s indoor air quality has improved by 97 percent.

That’s since our smoking ban went into effect in January.