In other words, it doesn't matter if one is outside for a few minutes versus one who has been there for an hour, the result will be equivalent. The main concern for the respiratory part is that it causes difficulty in breathing with decreased lung function in children and adults. On the other hand, adverse cardiovascular effects on air pollution are related to traffic. To clarify this, epidemiological studies have indicated that contact with traffic is a sign of development of acute myocardial infarction (Katsouyanni,