Association between ambient particulate matter concentrations and hospitalization for ischemic heart disease (I20-I25, ICD-10) in China: A multicity case-crossover study

Short-term elevations in the levels of PM2.5 and PM10 demonstrate significant associations with an increase in ischemic heart disease. In northern China, the associations between the increase of PM2.5 and PM10 concentrations and IHD admissions were positive. In southern China, the associations were null or negative.