The Doe Run Company operates the Church Street air monitoring station on corporate property in Herculaneum. Data from the monitor provide valuable information about the concentration of airborne lead, but since the monitor is inaccessible to the public, this data cannot play a role in determining whether the area meets the federal lead standard. In other words, the station does not have an ambient air monitor.
The department oversees Doe Run's operation of the Church Street monitor and other company monitors. Until 2013, Doe Run maintained a primary lead smelter in Herculaneum. The company has several other monitoring stations in the area, all of which are ambient air monitors.
Pollutants
Lead
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.
Departmental information about lead
- Health effects
- Missouri's lead legacy
- 2008 standard and pertinent documents
- Three-month average lead concentrations for the most recent 12 months
- State map with monitors for lead in ambient air
Technical issues can affect ability to deliver quality data. Access a table of symbols with explanation of the problems they represent.
The Missouri Lead Monitoring Network Plan - Oct. 2009 gives an overview of the lead monitors.
951 Church St.
Herculaneum, MO 63048
United States
Air Pollution Control Program
Division of Environmental Quality
P.O. Box 176
Jefferson City, MO 65102-0176
United States