Constraining aerosol health impacts with sensitivity analysis using the CMAQ adjoint
The role of emissions from different sectors and locations on premature mortalities attributed to exposure to black carbon (BC) was studied using CMAQ adjoint model. While a majority of mortalities occur in highly-populated, urban locations, transport from less-populated regions played an important role. In 2007, 12,583 mortalities were attributed to exposure to BC, 12,177 of those were caused by anthropogenic emissions of BC. Several major roadways had larger emission percentages than contribution percentages. This suggests that while the transportation sector is responsible for 52.3% of total BC emissions in the US, controlling those emissions may not be the most optimal strategy to reduce mortalities on a per unit emission basis. This is an abstract of a paper presented at the AWMA's 107th Annual Conference & Exhibition (Long Beach, CA 6/24-27/2014).
Turner, M.D. (Matthew D.), Henze, D.K. (Daven K.), Hakami, A, Zhao, S. (ShunLiu), Percell, P. (Peter), Pinder, R. (Rob), & Capps, S. (Shannon). (2014). Constraining aerosol health impacts with sensitivity analysis using the CMAQ adjoint. In Proceedings of the Air and Waste Management Association's Annual Conference and Exhibition, AWMA (pp. 3013–3017).