Academic study: PM2.5 and lung function in children in Taiwan (2019)

Ambient PM2.5 concentrations were inversely associated with lung function in children, adolescents and young adults in Taiwan.

Ambient PM2.5 was studied in this research; however, the WHO has pointed out in its Guidelines for IAQ that there is no convincing evidence of a difference in the hazardous nature of particulate matter from indoor sources as compared with those from outdoors.