There are three groups of people that are exposed to higher risk due to the impact of smog than the others. The first group includes patients with chronic obstructive pulmonary diseases such as asthma, emphysema, and bronchitis. This group feels the negative effects of air pollution sooner than healthy people and at lower levels of contamination. Smog and ozone increase people’s sensitivity to allergies as well.
The second group of high-risk comprises kids and small children. It is explained by the fact that their lungs are not developed enough and thus more sensitive to smog. In addition, due to faster breathing, children breathe in more polluted air. The resulting reduction of breathing capacity can cause sudden infant death syndrome. Moreover, children living in smoggy areas have more respiratory infections and are at a higher risk of developing poor functioning lungs.
The third group at risk comprises healthy adults of all ages who take regular exercise. It can be explained by the fact that during exercise, people breathe more extensively than in a sitting position and breathe in ten times more smog.