POLLUTION LOCATOR|Hazardous Air Pollutants | County Report

Hazardous Air Pollutant Report: SANTA CLARA County, CA
 
 
  • Map Locating Hazardous Air Pollution

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  • Ranking Areas by Health Risk

    Cleanest/Best Counties in US Percentile Dirtiest/Worst Counties in US
    0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%

    Added cancer risk from hazardous air pollutants:
    Noncancer risks from hazardous air pollutants:
    Number of people living in areas where cancer risk from HAPs exceeds 1 in 10,000:
    Number of people living in areas where noncancer risk from HAPs exceeds 1:

    See rankings within just this state.

    Rank counties by health risk from HAPs.

    *Note: These rankings are based on exposure estimates derived from 1996 emissions data. There are important uncertainties associated with using models to predict current air quality. Scorecard risk estimates are based on EPA exposure estimates and provide a perspective on the magnitude and sources of hazardous air pollution problems. They are not definitive evaluations of health risk in a particular locale.

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  • Environmental Justice Analysis for SANTA CLARA County

    View Summary Environmental Justice Report (en español).

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  • Cancer Risks and Noncancer Hazards in SANTA CLARA County

  • Cancer Risks from Hazardous Air Pollutants:

    Average individual's added cancer risk: 930 per 1,000,000
    Population in areas where cancer risk exceeds 10-3: 485,992
    Population in areas where cancer risk exceeds 10-4: 1,682,585
    HAP with the highest contribution to cancer risk: DIESEL EMISSIONS

    Noncancer Hazards from Hazardous Air Pollutants:

    Average individual's cumulative hazard index: 4.2
    Population in areas where hazard index exceeds 1: 1,647,550
    HAP with the highest contribution to noncancer hazards: ACROLEIN
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  • Sources Contributing to Health Risks from Hazardous Air Pollutants
  •   Contribution
    to Added
    Cancer Risk
    Contribution
    to Cumulative
    Hazard Index
    Area source 15% 22%
    Mobile source 85% 78%
    Point source 0% 0%
     
    See source categories contributing to chemical-specific risks
      See the 1996 emissions data EPA used to estimate exposures for this area
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  • What We Don't Know About HAPs in SANTA CLARA County

  • 5 hazardous air pollutants in SANTA CLARA County lack the risk assessment values required for safety assessment
    37 hazardous air pollutants in SANTA CLARA County lack the exposure estimates required for safety assessment
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    Email EPA
    Join an online discussion about pollution in SANTA CLARA County
    Email Governor of CALIFORNIA


    Email a Scorecard Community Report to a friend
    Network with environmental groups
    Learn how to use Scorecard to find out about toxics in your community


    Contribute to Environmental Defense
    Volunteer with environmental groups in your community

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  • Links

    Scorecard reports on:

    Compare EPA exposure estimates with historical monitoring data
    Compare EPA exposure estimates with current monitoring data
    See other reports on hazardous air pollutant risks in this area:
    Silicon Valley Toxics Coalition Cumulative Exposure Project Maps
    U.S. House of Representatives Report: Exposure to Hazardous Air Pollutants in Los Angeles
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