POLLUTION LOCATOR|Smog and Particulates | County Report

Criteria Air Pollutant Report: GALLATIN County, MT
 
 
  • Map Locating the Pollution Sources

    GALLATIN 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:
    PM-2.5 24-hour average concentration:
    PM-10 24-hour average concentration:
    See how this county ranks on other criteria air pollution attributes tracked by Scorecard

    Rank counties in MONTANA by criteria air pollutant health risks, exposures, or emissions.
    Rank facilities in GALLATIN County by criteria air pollutant emissions.
    Rank monitoring stations in GALLATIN County by criteria air pollutant exposures.

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  • Environmental Justice Analysis for GALLATIN County

    View Summary Environmental Justice Report (en español).

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  • Exposures to Criteria Air Pollutants
  • Air Quality Index:
    Percentage of days with good air quality:97
    Percentage of days with moderate air quality:3
    Percentage of days with unhealthful air quality for sensitive populations:0
    Percentage of days with unhealthful air quality:0
    Maximum AQI level in 200384
    Median AQI level in 20037
    90th Percentile AQI level in 200330
    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 ppm8.6 ppm8.4 ppm 0 1
        8-hour average 9 ppm2.1 ppm2 ppm 0 1
    PM-25
        24-hour average 65 ug/m332 ug/m330 ug/m3 0 2
        Annual arithmetic mean 15 ug/m38.7 ug/m32.4 ug/m3 0 2
    PM-10
        24-hour average 150 ug/m368 ug/m366 ug/m3 0 3
        Annual arithmetic mean 50 ug/m326 ug/m324 ug/m3 0 3
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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 Sources26,9685,1751,97311,3793813,721
    Area Sources31,1391,7254,0618,9901163,276
    Point Sources1131,6481332982,341178
    All sources58,2208,5486,16720,6662,8387,175
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  • Links

    Scorecard's report on
    EPA's Position On Billings/Laurel SO2 State Implementation Plan
    Montana Department of Environmental Quality
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