Air pollution as an emerging global risk factor for stroke.

摘要

Air pollution consists of a heterogeneous mixture of PM and gases (eg, ozone, carbon monoxide). Fossil fuel combustion (eg, traffic, power generation, industry) is a major source; however, indoor pollutants and the burning of bio-mass fuels are also significant contributors in many countries.2 Early studies, including analyses of the Great London Fog of 1952, a renowned pollution episode of the 20th century, found an increased risk of stroke deaths attributable to a short-term extreme rise in air pollution.3 This relationship continues to be demonstrated even at lower levels. In most cases, exposure to each pollutant reported.