Key updates made to the COBRA model released in October 2012:
- COBRA now has a single emissions baseline for the year 2017 instead of 2010 and 2015.
- Benefits of avoided adult mortality are now estimated using Krewski et al. (2009) and Laden et al. (2006). Pope et al. (2002) is no longer used in COBRA.
- There are several changes in the set of health impact functions for the morbidity endpoints.
- COBRA now reports a high and a low health benefits estimate using two sets of assumptions about the sensitivity of adult mortality and non-fatal heart attacks to changes in ambient PM2.5 levels.
- Recent health incidence data has been added.
- The dollar values in COBRA have been updated from year 2006-$ to year 2010-$.
- COBRA users can choose between 3% and 7% discount rate to calculate present value of health benefits that occur beyond 2017.
- COBRA now uses 2017 population projections based on US Census of Population and Housing 2010 and economic forecasting models developed by Woods & Poole (2012).
For more information about the updated model and all of its assumptions, see the User Manual.