The Effects of Trash, Residential Biofuel, and Open Biomass Burning Emissions on Local and Transported PM_2.5 and Its Attributed Mortality in Africa.

ABSTRACT: Long-term exposure to ambient fine particulate matter (PM_2.5) is the second leading risk factor of premature death in Sub-Saharan Africa. We use GEOS-Chem to quantify the effects of (a) trash burning, (b) residential solid-fuel burning, and (c) open biomass burning (BB) (i.e., landscape fires) on ambient PM_2.5 and PM_2.5-attributable mortality in Africa. Using a series of sensitivity simulations, we excluded each of the three combustion sources in each of five African regions. We estimate that in 2017 emissions from these three combustion sources within Africa increased global ambient PM_2.5 by 2%, leading to 203,000 (95% confidence interval: 133,000-259,000) premature mortalities yr^-1 globally and 167,000 premature mortalities yr^-1

SUBMITTER: Gordon JND 

PROVIDER: S-EPMC9884662 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature