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Atmospheric NO, temperature and ischaemic heart disease. Study in Toulouse and its conurbation
M Giroux1, J B Ruidavets, J Ferrières
1INSERM U518 Epidémiologie et Analyses en Santé Publique: Risques, Maladies chroniques et Handicaps, Hôpital La Grave, Toulouse, France.
The Science of the Total Environment
|March 4, 2000
Abstract:
Over a period of 388 days, associations were sought between the occurrence of acute myocardial infarction (AMI), levels of atmospheric nitrogen-containing gases (NO, NO2, NH3), temperature and relative humidity. During this period, there were 282 AMI validated by the WHO-MONICA criteria. Analysis of the data revealed, a decrease in the area, in AMI, when daily nitric oxide levels were above 13 microg m(-3) and when the mean daily temperature was below 13 degrees C.