Shen S, Li X, Yuan C, et al. - Researchers investigated the link between short-term sulfur dioxide (SO₂) exposure and the total number of hospital admissions for ischemic and hemorrhagic stroke in Guangzhou, China. They also assessed the impact of ambient SO₂ by age (< 65 years and ≥ 65 years). Over the study span, they recorded a 24-h mean concentration of ambient SO₂ of 27.82 μg/m³, 58,473 ischemic stroke and 9,167 hemorrhagic stroke hospital admissions. They noted that the link between SO₂ and ischemic stroke hospitalization was robust to two pollutant model, but it’s partially weakened for hemorrhagic stroke following adjustment for co-pollutants. Overall, it was concluded that significantly increased risks of hospitalization for ischemic stroke may be observed in correlation with short-term exposure to ambient SO₂. These observations may afford a better insight into the health effects of low-levels of SO₂.