A study conducted in Beijing found that elevated concentrations of gaseous air pollutants were associated with emergency hospital visits for hypertension. The findings provide additional information about the health effects of air pollution, and may have implications for planning local environmental protection and public health interventions in China.

1. Guo Y, Tong S, Li S, et al. Gaseous air pollution and emergency hospital visits for hypertension in Beijing, China: a time-stratified case-crossover study. Environmental Health 2010; 9: 57. (open access)