Temperature modifies the acute effect of particulate air pollution on mortality in Jiang'an district of Wuhan
10.3760/cma.j.issn.0253-9624.2016.06.009
- VernacularTitle:武汉市江岸区温度在大气颗粒物短期暴露对居民死亡影响的修饰效应
- Author:
Yaohui ZHU
1
;
Ran WU
;
Peirong ZHONG
;
Cihua ZHU
;
Lu MA
Author Information
1. 430071武汉大学公共卫生学院
- Keywords:
Temperature;
Air pollution;
Mortality;
Effect modification;
Time-series study
- From:
Chinese Journal of Preventive Medicine
2016;50(6):519-524
- CountryChina
- Language:Chinese
-
Abstract:
Objective To analyze the temperature modification effect on acute mortality due to particulate air pollution. Methods Daily non-accidental mortality, cardiovascular mortality, and respiratory mortality data were obtained from Jiang'an District Center for Disease Control and Prevention. Daily meteorological data on mean temperature and relative humidity were collected from China Meteorological Data Sharing Service System. The daily concentration of particulate matter was collected from Wuhan Environmental Monitoring center. By using the stratified time-series models, we analyzed effects of particulate air pollution on mortality under different temperature zone from 2002 to 2010, meanwhile comparing the difference of age, gender and educational level, in Wuhan city of China. Results High temperature (daily average temperature>33.4℃) obviously enhanced the effect of PM10 on mortality. With 10 μg/m3 increase in PM10 concentrations, non-accidental, cardiovascular, and respiratory mortality increased 2.95%(95%CI:1.68%-4.24%), 3.58%(95%CI:1.72%-5.49%), and 5.07%(95%CI:2.03%-9.51%) respectively. However, low temperature (daily average temperature <-0.21 ℃) enhanced PM10 effect on respiratory mortality with 3.31%(95%CI: 0.07%-6.64%)increase. At high temperature, PM10 had significantly stronger effect on non-accidental mortality of female aged over 65 and people with high educational level groups. With an increase of 10 μg/m3, daily non-accidental mortality increased 4.27% (95%CI:2.45%-6.12%), 3.38% (95%CI:1.93%-4.86%) and 3.47% (95%CI:1.79%-5.18%), respectively. Whereas people with low educational level were more susceptible to low temperature. A 10μg/m3 increase in PM10 was associated with 2.11%(95%CI:0.20%-4.04%)for non-accidental mortality. Conclusions Temperature factor can modify the association between the PM10 level and cause-specific mortality. Moreover, the differences were apparent after considering the age, gender and education groups.
