French researchers have reported that short-term ozone exposure within a period of 1 to 2 days is related to acute coronary events in middle-aged adults without heart disease, and that nitrogen dioxide and sulfur dioxide are not.
The study design allowed for control of long-term seasonal trends, and adjusted for temperature, relative humidity, and influenza epidemics.
Ruidavets J-B, Cournot M, Cassadou S, Giroux M, Meybeck M, Ferrières. Ozone Air Pollution is Associated with Acute Myocardial Infarction. Circulation 2005; 111:563-569.
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