GURNEE, Ill. (AP) — A newspaper investigation says authorities have provided little warning to Illinois residents who are facing abnormally high cancer risks from toxic air pollution from two facilities.

The Chicago Tribune reports that the Medline Industries facility in Waukegan is featured on a toxic air pollution map created by the U.S. Environmental Protection Agency. More than 19,000 people living near the medical equipment manufacturer’s facility are at risk from ethylene oxide, which is used to sterilize products.

Vantage Specialty Chemicals in Gurnee also releases ethylene oxide, but isn’t featured on the map. Federal and state officials say it isn’t included because the facility’s emissions weren’t provided for the EPA’s recent National Air Toxics Assessment. Nearly 23,000 people live near the chemical plant.

Federal, state and local officials declined to comment to the newspaper.