POLLUTION LOCATOR|Smog and Particulates | County Report

Criteria Air Pollutant Report: DENVER County, CO
 
 
  • Map Locating the Pollution Sources

    DENVER 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 COLORADO by criteria air pollutant health risks, exposures, or emissions.
    Rank facilities in DENVER County by criteria air pollutant emissions.
    Rank monitoring stations in DENVER County by criteria air pollutant exposures.

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  • Environmental Justice Analysis for DENVER 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:78
    Percentage of days with moderate air quality:21
    Percentage of days with unhealthful air quality for sensitive populations:1
    Percentage of days with unhealthful air quality:0
    Maximum AQI level in 2003159
    Median AQI level in 200340
    90th Percentile AQI level in 200364
    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 ppm15 ppm14.9 ppm 0 4
        8-hour average 9 ppm6.3 ppm4.5 ppm 0 4
    Lead
        Quarterly average 1.5 ug/m3.03 ug/m3.02 ug/m3 0 4
    Nitrogen dioxide
        Annual arithmetic mean 0.053 ppm.03 ppm0 ppm 0 1
    Ozone
        1-hour average 0.12 ppm.13 ppm.1 ppm 1 1
        8-hour average 0.08 ppm.1 ppm.09 ppm 4 1
    PM-25
        24-hour average 65 ug/m333 ug/m333 ug/m3 0 2
        Annual arithmetic mean 15 ug/m310.5 ug/m310.4 ug/m3 0 2
    PM-10
        24-hour average 150 ug/m3111 ug/m3103 ug/m3 0 7
        Annual arithmetic mean 50 ug/m336 ug/m334 ug/m3 0 7
    Sulfur dioxide
        3-hour average 0.50 ppm.04 ppm.03 ppm 0 1
        24-hour average 0.14 ppm.01 ppm.01 ppm 0 1
        Annual arithmetic mean 0.03 ppm.003 ppm0 ppm 0 1
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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 Sources151,22128,4671,5212,8132,23015,620
    Area Sources17,43413,4192,3827,0091,05118,966
    Point Sources9986,1033886254,2833,441
    All sources169,65347,9894,29110,4477,56438,027
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  • Links

    Scorecard's report on
    Denver Real-Time Air Monitoring
    Colorado Air Quality Control Commission
    Colorado Department of Public Health and Environment
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