Public health impacts of secondary particulate formation from aromatic hydrocarbons in gasoline.

ABSTRACT:

Background

Aromatic hydrocarbons emitted from gasoline-powered vehicles contribute to the formation of secondary organic aerosol (SOA), which increases the atmospheric mass concentration of fine particles (PM2.5). Here we estimate the public health burden associated with exposures to the subset of PM2.5 that originates from vehicle emissions of aromatics under business as usual conditions.

Methods

The PM2.5 contribution from gasoline aromatics is estimated using the Community Multiscale Air Quality (CMAQ) modeling system and the results are compared to ambient measurements from the literature. Marginal PM2.5 annualized concentration changes are used to calculate premature mortalities using concentration-response functions, with a value of mortality reduction approach used to

SUBMITTER: von Stackelberg K 

PROVIDER: S-EPMC3652775 | biostudies-literature | 2013 Feb

REPOSITORIES: biostudies-literature