POLLUTION LOCATOR|Smog and Particulates | County Report

Criteria Air Pollutant Report: ANCHORAGE County, AK
 
  • 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:
    Person-days in exceedance of national air quality standard for PM-10 (24-hour):
    See how this county ranks on other criteria air pollution attributes tracked by Scorecard

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    Rank facilities in ANCHORAGE County by criteria air pollutant emissions.
    Rank monitoring stations in ANCHORAGE County by criteria air pollutant exposures.

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  • Environmental Justice Analysis for ANCHORAGE County

    View Summary Environmental Justice Report (en español).

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  • Exposures to Criteria Air Pollutants
  • Nonattainment Status:
    This county is in the Anchorage, AK nonattainment area for failing to meet the national ambient air quality standard for the following criteria air pollutants:
    1. Carbon monoxide
    This county is in the Eagle River, AK nonattainment area for failing to meet the national ambient air quality standard for the following criteria air pollutants:
    1. PM-10
    Air Quality Index:
    Percentage of days with good air quality:89
    Percentage of days with moderate air quality:10
    Percentage of days with unhealthful air quality for sensitive populations:1
    Percentage of days with unhealthful air quality:0
    Maximum AQI level in 2003486
    Median AQI level in 200323
    90th Percentile AQI level in 200353
    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 ppm9.8 ppm9.6 ppm 0 4
        8-hour average 9 ppm8.3 ppm6.7 ppm 0 4
    PM-25
        24-hour average 65 ug/m325 ug/m319 ug/m3 0 1
        Annual arithmetic mean 15 ug/m35.9 ug/m30 ug/m3 0 1
    PM-10
        24-hour average 150 ug/m3590 ug/m3421 ug/m3 7 4
        Annual arithmetic mean 50 ug/m347 ug/m332 ug/m3 0 4
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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 Sources59,6157,4608012,7177236,288
    Area Sources61,6821,7435,7187,953688,471
    Point Sources73359856566666
    All sources122,0309,8006,57510,72685814,825
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  • Links

    Scorecard's report on
    Alaska State Implementation Plan
    Alaska Department of Environmental Conservation
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