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The research plan questions for the air-toxics subobjective are as follows (EPA 2002):

  1. What are the sources of air toxics, and what are their characteristics?

  2. What is the role of atmospheric transport, transformation, fate, and chemistry in air toxics concentrations (including indoor, micro-scale, urban, terrestrial, and regional concentrations)?

  3. What is the relationship of concentrations of air toxics (from outdoor and indoor sources) to personal exposure?

  4. What are the health hazards and dose-response relationships associated with exposure to air toxics?

  5. What improvements can be made to dose-response assessments?

  6. What health risks can be characterized quantitatively for people exposed to air toxics?

  7. What risks from air toxics can be prevented and managed cost effectively?

A general subset of research activities arising from those questions consists of developing measurements, databases, methods, and biomarkers; validating models; identifying chemical mechanisms; and evaluating exposure concentrations.

REFERENCES

EPA (U.S. Environmental Protection Agency). 2002. Air Toxics Research Strategy. EPA-600-R-00-056. Office of Research and Development, U.S. Environmental Protection Agency, Washington, DC [online]. Available: http://www.epa.gov/ord/htm/documents/Air_Toxics.pdf [accessed Nov. 14, 2007].

EPA (U.S. Environmental Protection Agency). 2003a. 2003-2008 Strategic Plan: Direction for the Future. EPA-190-R-03-003. Office of Chief Planning Officer, Office of Planning Analysis and Accountability, U.S. Environmental Protection Agency, Washington, DC [online]. Available: http://www.epa.gov/epainnov/pdf/innovplan.pdf [accessed Nov 14, 2007].

EPA (U.S. Environmental Protection Agency). 2003b. Air Toxics Multi-Year Plan. Office of Research and Development, U.S. Environmental Protection Agency, Washington, DC [online]. Available: http://www.epa.gov/osp/myp/airtox.pdf [accessed Nov. 14, 2007].

EPA (U.S. Environmental Protection Agency). 2006. 2006-2011 Strategic Plan: Charting Our Course. EPA-190-R-06-001. Office of Chief Planning Officer, Office of Planning Analysis and Accountability, U.S. Environmental Protection Agency, Washington, DC [online]. Available: http://www.epa.gov/cfo/plan/2006/entire_report.pdf [accessed Nov. 14, 2007].



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