Relationship between air pollution and non-accidental daily death of residents in two cities of Heilongjiang province
Objectives To understand the effect of air pollution on non-accidental daily death of local residents in two cities of Heilongjiang province.Methods The total non-accidental daily death toll of residents,air pollutant concentrations and meteorological data from 2016 to 2018 in city H and J of Heilongjiang province were collected,and the effects of pollutant concentrations of PM2.5,PM10,SO2,NO2,O3 and CO on non-accidental death of residents were quantitatively studied by using generalized additive model of time-series.Results Daily average concentrations of PM25,PM10,SO2,NO2,O3 and CO in the air were 49.2,74.3,23.9,40.3,78.4 µg/m3 and 1.0 mg/m3 in city H,and were 32.6,49.0,9.0,21.2,79.2 µg/m3 and 0.6 mg/m3 in city J,respectively.The average daily non-accidental deaths was 162 in city H and 39 in city J respectively.With an increase of 10 μg/m3 of the pollutants,the daily non-accidental deaths for PM25 exposure in city H and city J increased by 0.26％(lag0)and 0.35％(lag0)respectively,and the daily non-accidental deaths increased by 0.19％(lag2)and 0.31％(lag0)for PM10 respectively,and 1.06％(lag2)and 2.78％(lag1)for SO2,and 0.85％(lag2)and 1.31％(lag1)for NO2,and 0.04％(lag5)and 0.06％(lag0)for CO,and 0.83％(lag1)and 0.64％(lag6)for O3.PM2.5 had significant effect on the people aged ≥65 and aged＜65,and NO2,O3 and CO had significant effect on people aged≥65 in H city,as well as the significant effect of PM10 and SO2 on the people aged over 65.However,PM2.5,PM10,NO2,O3 and CO had significant effect on the people aged＜65 in city J.Conclusion Short-term exposure to air pollution can raise the total non-accidental daily death risk of residents,the risk caused by air pollutants(except O3)in city J is higher than that in city H,and also the total non-accidental daily death risk caused by SO2,NO2 and O3 in two cities should be paid more attention.
Air pollutionNon-accidental daily deathHeilongjiang provinceCity
NETL
NSTL
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