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Diesel particles cause widespread damage to human health. This report estimates the impact of onroad and offroad sources of diesel particles.
The contribution of diesel particles to ambient particle levels less than or equal to 2.5 microns (PM2.5) in aerodynamic diameter are from the National Scale Air Toxics Assessment (NATA) program. The epidemiological studies and methods used to estimate the health impacts of diesel are the same as those used by the U.S. Environmental Protection Agency (EPA) in recent regulatory impact assessments (e.g., U.S. EPA 2008a; 2008b; 2009).
Section 2 describes the studies and methods used to estimate the health impacts of diesel. Section 3, briefly summarizes the national level health impacts. Additional details on the studies are provided in Appendix A.
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