Mortality risk from United States coal electricity generation.

Henneman, Lucas; Choirat, Christine; Dedoussi, Irene; Dominici, Francesca; Roberts, Jessica; Zigler, Corwin · Science · 2023

retrospective_cohort · Level III

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Abstract

Policy-makers seeking to limit the impact of coal electricity-generating units (EGUs, also known as power plants) on air quality and climate justify regulations by quantifying the health burden attributable to exposure from these sources. We defined "coal PM<sub>2.5</sub>" as fine particulate matter associated with coal EGU sulfur dioxide emissions and estimated annual exposure to coal PM<sub>2.5</sub> from 480 EGUs in the US. We estimated the number of deaths attributable to coal PM<sub>2.5</sub> from 1999 to 2020 using individual-level Medicare death records representing 650 million person-years. Exposure to coal PM<sub>2.5</sub> was associated with 2.1 times greater mortality risk than exposure to PM<sub>2.5</sub> from all sources. A total of 460,000 deaths were attributable to coal PM<sub>2.5</sub>, representing 25% of all PM<sub>2.5</sub>-related Medicare deaths before 2009 and 7% after 2012. Here, we quantify and visualize the contribution of individual EGUs to mortality.

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