The key pollutants that influence asthma include: - Particulate Matter (PM2.5 and PM10): These tiny particles can penetrate deep into the lungs and cause irritation. - Nitrogen Dioxide (NO2): Primarily from vehicle emissions, NO2 can exacerbate asthma symptoms. - Ozone (O3): A major component of smog, ozone can cause airway inflammation. - Sulfur Dioxide (SO2): Often from industrial activities, it can trigger asthma attacks.
