Interaction Effect Between Ambient Air Pollution and Indoor Coal Consumption on Children's Lung Function / 环境与健康杂志

ABSTRACT

Objective To study the interaction effect of indoor coal consumption and outdoor air pollution on children's lung function. Methods During 1995-1996, a cohort study on lung function measurements of children aged 6-12 was carried out in urban and suburban schools in 4 Chinese cities (twice a year in both warm and cold parts of the years). A so,called three,stage regression was used as statistic method. Results In the present paper it had been seen that the concentration of ambient air particles was negatively related to children's FEV1, FVC and FEV1/FVC, TSP and indoor coal consumption showed a significant interaction on children's lung function. There was only a weak interaction between indoor coal consumption and PM10 , but the results still showed a clue that indoor coal usage might aggravate the adverse impact of air particles on children's lung function. However, there were no significant interactive relations had been found for SO2 or NOx. Conclusion Indoor coal burning can aggravate the effects of outdoor particle pollution, especially TSP, on children's lung function.