Address: 13155 Highway KK
Boss, MO 65440
County: Reynolds
Pollutants monitored: Lead (Pb)
Date established: Jan. 1, 2010
Site Coordinates
* Latitude: 37.56485°
* Longitude: -91.11423°
EPA site: 29-179-0034

The Oates air monitoring station is located near the Doe Run Company's secondary lead smelter, a plant in Boss, Mo., that recycles lead from batteries and other products. It is also near two lead ore-processing facilities operated by Doe Run near the lead-rich Viburnum Trend in southeast Missouri. These lead deposits weren't discovered until some time in the the 1950s-1960s. The mines and mills that operate in the vicinity of the Viburnum Trend encompass the new lead belt. The old lead belt lies north of the Viburnum Trend, and it included the Herculaneum primary lead smelter, which closed in 2013. Doe Run now sends mined ore to its primary smelter overseas.

The Oates air monitor helps determine exposure of a population segment to airborne lead resulting from those sources. Operated by the state, the air monitoring station takes its name from the unincorporated area in which it is located — Oates, of course.

Lead (Pb) Data

The primary and secondary ambient air standards for lead have remained at 0.15 micrograms per cubic meter since 2008. The primary standard reflects EPA's concern for public health while the second standard demonstrates concern for public welfare. EPA bases the standard on the highest rolling three-month average over a period of three years and two months. A monitoring site meets the standard when this rolling three-month average is less than or equal to 0.15 μg/m3.

Preliminary lead data
• Information about 2008 standard and EPA requirements
• Three-month average lead concentrations for the most recent 12 months
• Map of lead monitoring sites

Graph of design values for state-operated sites in the new lead belt, beginning in 2004

Department's webpage about airborne concentrations of lead
• Description, health effects and historical information
• 2008 standard and related documents

Related Links

Missouri map with network of air monitoring sites

Missouri Lead Monitoring Network Plan and 2009 Monitoring Network Plan
• Describes expansion of the state-operated lead monitoring network prompted by EPA requirements issued in 2008

Real-time views from cameras in Kansas City, St. Louis

Department's webpage about air quality
• Air quality forecasts for St. Louis, Kansas City and Springfield during ozone season: March 1 through October 31
• Tips for improving air quality
• Tips for breathing better when air quality is forecasted to be unhealthy for sensitive groups (orange) or unhealthy (red)
• Air quality forecasts for U.S. cities
• Air quality information from EPA

National standards for pollutants

EPA Air Sensor Toolbox for Citizen Scientists