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Air pollutionDevice Types:
Spirotrac,PneumotracThis study examined to what extent the constituents of fine particulate matter and ozone affected the lung function of 198 primary school-aged children in Tianjin, China. Participants underwent repeated lung function testing (FEV1, FVC, PEF, FEF75, FEF25) using a Vitalograph Pneumotrac spirometer.