TY - JOUR T1 - Can what you breathe trigger a stroke within hours?: Comment on “ambient air pollution and the risk of acute ischemic stroke” AU - Brook RD, Rajagopalan S Y1 - 2012/02/13 N1 - 10.1001/archinternmed.2011.1214 JO - Archives of Internal Medicine SP - 235 EP - 236 VL - 172 IS - 3 N2 - Air pollution is a pervasive consequence of modern societies. Beyond being an environmental hazard, several pollutants such as particulate matter (PM) pose significant health threats.1 Fine PM (<2.5 μm in diameter; PM2.5) is a heterogeneous mixture of compounds (eg, carbon, sulfates, nitrates, and metals) principally derived from the combustion of fossil fuels. Given the billions of people exposed, the adverse effects of PM represent a major global health epidemic.2 SN - 0003-9926 M3 - doi: 10.1001/archinternmed.2011.1214 UR - http://dx.doi.org/10.1001/archinternmed.2011.1214 ER -