Smog pollutant may be tied to stroke risk

Reuters – People who live in areas with high levels of traffic-related air pollution might have a slightly increased risk of dying from stroke, Danish researchers suggest in a new study. They found people living in urban zones with high estimated concentrations of nitrogen dioxide were 22 percent more likely to suffer a fatal stroke than people in less-polluted neighborhoods. Nitrogen dioxide is a component of car exhaust and is known to cause lung damage. Previous research also suggests spikes in air pollution over the course of days or weeks can trigger death and hospitalization from stroke. Read article