highly significantp < 0.01
Highly significant decreases in the relative risk for myocardial infarction are shown for PM 2.5 and PM 10 , for NO 2 , NOx and SO 2 and for CO at higher concentrations ( p < 0.01 for all pollutants).
Highly significant decreases in the relative risk for myocardial infarction are shown for PM 2.5 and PM 10 , for NO 2 , NOx and SO 2 and for CO at higher concentrations ( p < 0.01 for all pollutants).