POLLUTION LOCATOR|Smog and Particulates | County Report

Criteria Air Pollutant Report: ST. LOUIS County, MO
 
 
  • Map Locating the Pollution Sources

    ST. LOUIS County
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  • Air Quality Rankings: Health Risks, Exposure, and Emissions
    Cleanest/Best Counties in US Percentile Dirtiest/Worst Counties in US
    0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%

    Carbon Monoxide emissions:
    Nitrogen Oxides emissions:
    PM-2.5 emissions:
    PM-10 emissions:
    Sulfur Dioxide emissions:
    Volatile Organic Compound emissions:
    Air Quality Index:
    Ozone 1-hour average concentration:
    Ozone 8-hour average concentration:
    PM-2.5 24-hour average concentration:
    PM-10 24-hour average concentration:
    Person-days in exceedance of national air quality standard for ozone (1-hour):
    Person-days in exceedance of national air quality standard for ozone (8-hour):
    See how this county ranks on other criteria air pollution attributes tracked by Scorecard

    Rank counties in MISSOURI by criteria air pollutant health risks, exposures, or emissions.
    Rank facilities in ST. LOUIS County by criteria air pollutant emissions.
    Rank monitoring stations in ST. LOUIS County by criteria air pollutant exposures.

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  • Environmental Justice Analysis for ST. LOUIS County

    View Summary Environmental Justice Report (en español).

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  • Health Risks
  • Population Exposed to Unhealthy Levels of Criteria Air Pollutants:

    Pollutant Person-days
    in exceedance
    of NAAQS
    Ozone
        8-hour average 20,262,460
        1-hour average 5,065,615


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  • Exposures to Criteria Air Pollutants
  • Air Quality Index:
    Percentage of days with good air quality:58
    Percentage of days with moderate air quality:38
    Percentage of days with unhealthful air quality for sensitive populations:4
    Percentage of days with unhealthful air quality:1
    Maximum AQI level in 2003161
    Median AQI level in 200345
    90th Percentile AQI level in 200382
    Air Quality Index
    0 - 50 Good
    50 - 100 Moderate
    100 - 200 Unhealthful
    200 - 300 Very Unhealthful
    300 - 500 Hazardous
    2003 Summary of Pollutant Concentrations:
    Pollutant NAAQS
    Standard
    Highest
    Recorded
    Concentration
    Second
    Highest
    Recorded
    Concentration
    Number
    of NAAQS
    Exceedances
    Stations
    Monitoring
    Pollutant
    Carbon monoxide
        1-hour average 35 ppm3.6 ppm3.3 ppm 0 1
        8-hour average 9 ppm2.4 ppm2.1 ppm 0 1
    Lead
        Quarterly average 1.5 ug/m3.01 ug/m3.01 ug/m3 0 2
    Nitrogen dioxide
        Annual arithmetic mean 0.053 ppm.01 ppm.01 ppm 0 5
    Ozone
        1-hour average 0.12 ppm.13 ppm.13 ppm 5 5
        8-hour average 0.08 ppm.1 ppm.1 ppm 20 5
    PM-25
        24-hour average 65 ug/m348 ug/m344 ug/m3 0 4
        Annual arithmetic mean 15 ug/m313.6 ug/m313.5 ug/m3 0 4
    PM-10
        24-hour average 150 ug/m341 ug/m339 ug/m3 0 2
        Annual arithmetic mean 50 ug/m318 ug/m317 ug/m3 0 2
    Sulfur dioxide
        3-hour average 0.50 ppm.08 ppm.05 ppm 0 5
        24-hour average 0.14 ppm.01 ppm.01 ppm 0 5
        Annual arithmetic mean 0.03 ppm.005 ppm.003 ppm 0 5
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  • 1999 Emissions Summary of Criteria Air Pollutants
  • (Expressed in tons of pollutant emitted)
      Carbon
    monoxide
    Nitrogen
    oxides
    PM-2.5 PM-10 Sulfur
    dioxide
    Volatile
    organic
    compounds
    Mobile Sources301,04942,3646,33823,3483,40628,210
    Area Sources15,8061104,18914,5315,5587,881
    Point Sources9528,6886581,22715,5746,457
    All sources317,80851,16211,18539,10624,53842,549
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  • Links

    Scorecard's report on
    Missouri Federally Approved Air Quality Rules
    Missouri DNR - Division of Environmental Quality - Air Pollution Control Program
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