Acute effects of summer air pollution on respiratory symptom reporting in children.

摘要: A daily diary of respiratory symptoms was collected from the parents 1,844 school children in six U.S. cities to study association between ambient air pollution exposures and illness. cohort approximately 300 elementary each communities were asked keep a log child's for one year. Daily measurements sulfur dioxide, nitrogen ozone, inhalable particles (PM10), respirable (PM2.5), light scattering, sulfate made, along with integrated 24-h measures aerosol strong acidity. The analyses limited five warm season months April August. Significant associations found incidence coughing lower PM10, marginally significant upper PM10. There no evidence that other particulate including acidity prefera...