Abstract Sungshan, Longshan, Nankang and Mucha districts are selected for experimental research on particulate air pollution in Taipei. Air samples are taken from these districts and analyzed for total particulate weight, particle size distribution and chemical composition. The health status of students in some primary schools in these districts is also investigated. It is found that the particulate air pollution in Sungshan, Longshan and Nankang is serious. Lung function of the students in these three districts has been more or less damaged.