Comparison between two districts of the effects of an air pollution intervention on bronchial responsiveness in primary school children in Hong Kong

摘要

Conclusion-Bronchial hyperresponsive- ness tests can be used to support the evaluation of an air quality intervention. The demonstrated reduction in bronchial Hyperresponsiveness is an indication of The effectiveness of the intervention. Study objective-This study examined the Impact on children's respiratory health of A government air quality intervention that Restricted the sulphur content of fuels to 0.5/100 from July 1990 onwards. Design/setting/participants-This study Examined the changes, one and two years After the introduction of the intervention, In airway hyperreactivity of non- Asthmatic and non-wheezing, primary 4, 5, and 6, school children aged 9-12 years living in a polluted district compared with those in a less polluted district.