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A screening method for assessing cumulative impacts.

George V Alexeeff1, John B Faust, Laura Meehan August

  • 1Office of Environmental Health Hazard Assessment, California Environmental Protection Agency, 1515 Clay Street, 16th Floor, Oakland, CA 94612, USA. john.faust@oehha.ca.gov

International Journal of Environmental Research and Public Health
|April 4, 2012
PubMed
Summary

California developed a screening method to assess cumulative environmental impacts in communities, considering pollution burden, sensitive populations, and socioeconomic factors to identify highly impacted areas.

Keywords:
community healthcumulative impactscumulative risk assessmentenvironmental justice

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Area of Science:

  • Environmental Science
  • Public Health
  • Environmental Justice

Background:

  • The California Environmental Protection Agency (Cal/EPA) Environmental Justice Action Plan mandates guidelines for evaluating "cumulative impacts."
  • Existing scientific understanding highlights the adverse health effects of combined environmental pollution, influenced by biological and socioeconomic factors.
  • Disparities in pollution distribution and health outcomes necessitate tools for equitable assessment.

Purpose of the Study:

  • To develop a screening methodology for assessing cumulative environmental impacts in communities.
  • To provide a science-based tool for ranking communities based on their cumulative impact burden.
  • To inform the development of guidelines for evaluating cumulative impacts.

Main Methods:

  • Developed a screening methodology based on Cal/EPA's definition of cumulative impacts.
  • Incorporated pollution burden (exposures, health/environmental effects) and community characteristics (sensitivity, socioeconomic factors).
  • Utilized a pilot screening analysis to illustrate the methodology's application.

Main Results:

  • The methodology provides relative rankings to distinguish between more and less impacted communities.
  • It can help identify key contributing factors to a community's cumulative impact.
  • The screening tool is not designed for quantitative community-level health impact estimation.

Conclusions:

  • The developed screening methodology serves as a foundational tool for assessing cumulative environmental impacts.
  • It can assist Cal/EPA programs in prioritizing activities and targeting communities with the greatest cumulative impacts.
  • Further adoption of guidelines will enable broader application of this screening tool.