Epidemiological studies have consistently demonstrated a correlation between air pollution and asthma. For instance, cohort studies tracking populations over time have shown that exposure to high levels of pollutants can increase the incidence of asthma in children. Case-control studies have revealed that individuals with asthma are more likely to live in areas with poor air quality. Time-series analyses have also indicated that spikes in air pollution levels often coincide with increased hospital admissions for asthma.
