The Hercules Glades air monitoring station is located in the Hercules-Glades Wilderness northeast of Branson. 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.
Of the approximately 155 national parks and wilderness areas in the program, two are in Missouri: Mingo National Wildlife Refuge and Hercules Glades.
To learn about other air monitoring sites the department operates as part of the state's ambient air monitoring network, visit Air Monitoring Sites.
Pollutants
Fine Particulate Matter (PM 2.5)
The primary National Ambient Air Quality Standards (NAAQS), based on health effects, for fine particulate matter smaller than 2.5 micrometers in diameter, PM2.5, is 35 micrograms per cubic meter of air (μg/m3) averaged over 24 hours (98th percentile, averaged over three years) and 12 μg/m3 annual average (averaged over three years).
*All times listed in reports reflect Central Standard Time (CST).
- Annual PM2.5 design values
- 24-Hour PM2.5 design values
- Map of Missouri's PM2.5 monitoring sites
- Additional information about Particulate Matter State Planning efforts
Technical issues can affect ability to deliver quality data. Access a table of symbols with explanation of the problems they represent.
This site does not include a continuous monitor or NAAQS compliance monitoring. Visit the IMPROVE Data website to access data for this air monitoring site.
Highway 160
Forsyth, MO 65744
United States
Air Pollution Control Program
Division of Environmental Quality
P.O. Box 176
Jefferson City, MO 65102-0176
United States