Environmental Services Program
Missouri Nitrogen Dioxide (NO2)
Air Monitoring Sites
=Active Site
=Inactive Site or instrument
Troost, Kansas City ![]()
Pollutant(s) Monitored:
- Nitrogen Dioxide (NO2)
- Sulfur Dioxide (SO2)
- Inhalable Particulate (PM2.5)
- Inhalable Particulate (PM10)
Margaretta, St. Louis City ![]()
Pollutant(s) Monitored:
- Nitrogen Dioxide (NO2)
- Ozone (O3)

- Carbon Monoxide (CO)

- Sulfur Dioxide (SO2)
- Inhalable Particulate (PM10)
- Inhalable Particulate (PM2.5 )
Sites that have historically measured NO2
Liberty ![]()
Pollutant(s) Monitored:
- Nitrogen Dioxide (NO2)

- Ozone (O3)
- Inhalable Particulate (PM2.5)
Highway 94, West Alton ![]()
Pollutant(s) Monitored:
- Nitrogen Dioxide (NO2)

- Ozone (O3)
- Inhalable
Particulate (PM2.5)

Hunter Ave., Ladue ![]()
Pollutant(s) Monitored:
- Nitrogen Dioxide (NO2)

- Sulfur Dioxide (SO2)

- Ozone (O3)

- Lead (Pb)

- Inhalable Particulate (PM2.5)
Bonne Terre Area Site, Bonne Terre ![]()
Pollutant(s) Monitored:
- Nitrogen Dioxide (NO2)

- Ozone (O3)
- Inhalable Particulate (PM2.5) Continuous Monitoring

Hillcrest High School, Springfield ![]()
Pollutant(s) Monitored:
- Nitrogen Dioxide (NO2)

- Ozone (O3))
El Dorado Springs
Pollutant(s) Monitored:
- Nitrogen Dioxide (NO2)

- Ozone (O3)
- Inhalable Particulate PM2.5
Maryland Heights, St Louis County ![]()
Pollutant(s) Monitored:
- Nitrogen Dioxide (NO2)

- Sulfur Dioxide (SO2)

- Ozone (O3)
Weidman Rd., Queeny Park ![]()
Pollutant(s) Monitored:
- Nitrogen Dioxide (NO2)
- Sulfur Dioxide (SO2)
- Ozone (O3)
South Lindbergh, Sunset Hills , St Louis County ![]()
Pollutant(s) Monitored:
- Nitrogen Dioxide (NO2 )

- Sulfur Dioxide (SO2)

- Ozone (O3)

- Inhalable Particulate (PM2.5)
- Carbon Monoxide (CO)
KCI Airport, Kansas City ![]()
Pollutant(s) Monitored:
- Nitrogen Dioxide (NO2)
- Sulfur Dioxide (SO2
- Ozone (O3)
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