POLLUTION LOCATOR|Smog and Particulates | County Report

Criteria Air Pollutant Report: WEBB County, TX
 
 
  • Map Locating the Pollution Sources

    WEBB 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:
    See how this county ranks on other criteria air pollution attributes tracked by Scorecard

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

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  • Environmental Justice Analysis for WEBB 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:81
    Percentage of days with moderate air quality:17
    Percentage of days with unhealthful air quality for sensitive populations:2
    Percentage of days with unhealthful air quality:0
    Maximum AQI level in 2003147
    Median AQI level in 200335
    90th Percentile AQI level in 200362
    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 ppm8.1 ppm7.5 ppm 0 2
        8-hour average 9 ppm4.3 ppm4.2 ppm 0 2
    Lead
        Quarterly average 1.5 ug/m3.01 ug/m3.01 ug/m3 0 1
    Ozone
        1-hour average 0.12 ppm.08 ppm.08 ppm 0 1
        8-hour average 0.08 ppm.07 ppm.07 ppm 0 1
    PM-25
        24-hour average 65 ug/m357 ug/m332 ug/m3 0 1
        Annual arithmetic mean 15 ug/m312.3 ug/m30 ug/m3 0 1
    PM-10
        24-hour average 150 ug/m389 ug/m387 ug/m3 0 2
        Annual arithmetic mean 50 ug/m325 ug/m323 ug/m3 0 2
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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 Sources39,5746,6761,3266,3924544,270
    Area Sources2,5391558923,617908,409
    Point Sources6361,31123233160
    All sources42,7498,1422,24110,03254712,839
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  • Links

    Scorecard's report on
    Webb County Real-Time Air Monitoring
    Texas State Implementation Plan
    Texas Natural Resource Conservation Commission
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