Ambient particulate matter pollution and lung function among informal transport workers in Ghana

/FVC < 70%), controlling for demographic, occupational, lifestyle and meteorological confounders. A high prevalence of airflow limitation was observed. Increased exposure to coarse PM was associated with increased prevalence of airflow limitation, while fine PM showed a weaker relationship. Being overweight, consumer of alcohol, and higher ambient temperatures had protective associations in some analyses, whereas smoking was linked to airflow limitation in specific locations. Findings indicate that coarse PM was consistently associated with airflow limitation. This suggests that in urban transport stations coarse PM may be a critical but overlooked target for respiratory health protection policies.