Effects Of Air Pollution On Public Health In Jinchang

Objective:To explore the pollution characteristics and its influence to human health of PM10, SO2and NO2which were the main atmospheric pollution were investigated in Jinchang City. For a quantitative assessment of air pollutants on the human acute health effects in Jinchang, we built a suited exposure-response relationship between the air pollution and human health. To provide the basis for government on establishing residents’ health hazard early warning systems of air pollution and relevant policies and regulations, and protection of vulnerable populations.Methods:The study setuped the model according to gender, age and diseases. Through applying time series semi-parametric generalized additive model (GAM), simultaneously controlling the long-term trend,"week" effect and meteorological factors, combined with the analysis the exposure-response relationship between atmospheric pollution and human health in Jinchang.Results:(1)Atmospheric pollutants PM10and SO2showed a decreasing trend year by year during the study period in Jinchang, and heating period was higher than the non-heating period. PM10in winter and spring was higher than in summer and autumn, the highest appeared in December to next February to May. It indicated that dust storms in spring and winter coal-fired heating made contribution to PM10. SO2in winter was higher than other seasons, and the annual change was a typical U-shaped curve. It indicated that winter coal-fired heating made contribution to SO2. Interannual variability、seasonal variability and annual variability of the concentration of NO2was not obvious, and the heating period was slightly higher than the non-heating period.(2)Atmospheric pollution had certain effect to daily hospital admissions for respiratory diseases. Daily hospital admissions for respiratory diseases increased0.5%、0.7%and3.4%when PM10、SO2and NO2increased10μg/m3. Daily hospital admissions for URIT increased0.6%、1.3%and7.1%when PM10、SO2and NO2increased10μg/m3. Daily hospital admissions for pneumonia increased1.0%、1.6% and8.1%when PM10、SO2and NO2increased10μg/m3. Daily hospital admissions for COPD increased0.3%、2.9%and15.9%when PM10、SO2and NO2increased1Oμg/m3, but PM10without statistical significance of COPD. The effect of atmospheric pollution on female was stronger than male in the group of gender and age. The effect on the age of<65was stronger than≥65for COPD.But atmospheric pollution had stronger effect on the age of≥65than the other for pneumonia and URIT.(3)Atmospheric pollution had certain effect to daily hospital admissions for cardiovascular diseases. Daily hospital admissions for cardiovascular diseases increased0.5%、0.4%and3%when PM10、SO2and NO2increased1Oμg/m3, but SO2、 NO2without statistical significance of cardiovascular. Daily hospital admissions for IHD diseases increased1.1%、1.3%and3%when PM10、SO2and NO2increased10μg/m3, but NO2without statistical significance of IHD. Daily hospital admissions for hypertension diseases increased0.8%、1.8%and10.7%when PM10、SO2and NO2increased10μg/m3. Daily hospital admissions for risk of stroke diseases increased1.3%、2.1%and10.5%when PM10、SO2and NO2increased10μg/m3. The effect of atmospheric pollution on female was stronger than male in the group of gender and age. Atmospheric pollution had stronger effect on the age of≥65for IHD and on the age of<65for hypertension and risk of stroke.Conclusions:Atmospheric pollution had certain effect to human health. Daily hospital admissions for respiratory diseases and cardiovascular diseases increased with the concentration of atmospheric pollutants goes up, but there were different influences between different gender, age and diseases.