Impact of ambient PM10 on respiratory disease mortality / 预防医学

ABSTRACT

Objective@#To study the impact of inhalable particles（PM10）on the daily respiratory disease mortality in Jinhua,and to provide basis for health evaluation and protection for susceptible population. @*Methods@#The data of air pollutants and meteorological factors in Jinhua from 2014 to 2018 were collected. The concentrations of the air pollutants were compared with the secondary standard of GB 3095-2012 Environmental Air Quality Standard,and the seasonal distribution characteristics of PM10 were analyzed. The generalized linear models（GLM）of single pollutant and multi-pollutants were built to analyze the impact of atmospheric PM10 on the number of death from respiratory diseases. @*Results@#A total of 4 891 cases died of respiratory diseases from 2014 to 2018 in Jinhua. The median of PM10 concentration was 58 μg/m3,showing high in winter and spring but low in summer and autumn. In single pollutant models,the mortality risks of respiratory diseases of two-day lag among whole population and people aged 65 years or over increased by 1.23%（95%CI：0.27%-2.20%）and 1.24%（95%CI：0.26%-2.23%）with every increase of 10 μg/m3 in PM10. In multi-pollutants models,when introduced SO2,NO2,or SO2+NO2 with PM10,the mortality risks of respiratory diseases of two-day lag among whole population and people aged 65 years or over were higher than that in single pollutant models（P<0.05）. When introduced SO2 or SO2+NO2 with PM10,the mortality risks of respiratory diseases in males were higher than that in single pollutant models（P<0.05）.@*Conclusion@#Ambient PM10 can increase the mortality risk of respiratory diseases,especially for the elderly people aged 65 years or over.