Mingo Refuge Air Monitoring Site
The Mingo Refuge air monitoring station is located in the Mingo National Wildlife Refuge near Puxico. It provides data to help federal and state agencies assess regional haze. It is part of a program called Interagency Monitoring of Protected Visual Environments (IMPROVE), charged with improving visibility in national parks larger than 6,000 acres and national wilderness areas larger than 5,000 acres.