This presentation explains why one might use the CO-Benefits Risk Assessment (COBRA) Health Impacts Screening and Mapping Tool. COBRA is a screening tool that converts emission reductions into changes in air quality and estimates the number of cases of illness and death avoided as well as the economic value of those benefits.
You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.- Why Use Cobra (PDF)(12 pp, 971 K)