The effects of dust-haze on mortality are modified by seasons and individual characteristics in Guangzhou, China.
This study aimed to investigate the effects of dust-haze on mortality and to estimate the seasonal and individual-specific modification effects in Guangzhou, China. Mortality, air pollution and meteorological data were collected for 2006-2011. A dust-haze day was defined as daily visibility <10 km with relative humidity <90%. This definition was further divided into light (8-10 km), medium (5-8 km) and heavy dust-haze (<5 km). A distributed lag linear model (DLM) was employed. Light, medium and heavy dust-haze days were associated with increased mortality of 3.4%, 6.8% and 10.4% respectively, at a lag of 0-6 days. This effect was more pronounced during the cold season, for cardiovascular mortality (CVD), respiratory mortality (RESP), in males and people ≥60years. These effects became insignificant after adjustment for PM10. We concluded that dust-haze significantly increased mortality risk in Guangzhou, China, and this effect appears to be dominated by particulate mass and modified by season and individual-specific factors.
Guangdong Provincial Institute of Public Health, Guangdong Provincial Center for Disease Control and Prevention, No. 160, Qunxian Road, Panyu District, Guangzhou 511430, China; Environment and Health, Guangdong Provincial Key Medical Discipline of Twelfth Five-Year Plan, Guangzhou 511430, China.
Tao
T
Liu
Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China.
Yong Hui
YH
Zhang
Institute of Chronic Noncommunicable Disease Prevention and Control, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China.
Yan Jun
YJ
Xu
Guangdong Provincial Institute of Public Health, Guangdong Provincial Center for Disease Control and Prevention, No. 160, Qunxian Road, Panyu District, Guangzhou 511430, China; Environment and Health, Guangdong Provincial Key Medical Discipline of Twelfth Five-Year Plan, Guangzhou 511430, China.
Hua Liang
HL
Lin
Institute of Chronic Noncommunicable Disease Prevention and Control, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China.
Xiao Jun
XJ
Xu
Guangdong Provincial Institute of Public Health, Guangdong Provincial Center for Disease Control and Prevention, No. 160, Qunxian Road, Panyu District, Guangzhou 511430, China; Environment and Health, Guangdong Provincial Key Medical Discipline of Twelfth Five-Year Plan, Guangzhou 511430, China.
Yuan
Y
Luo
Guangdong Provincial Institute of Public Health, Guangdong Provincial Center for Disease Control and Prevention, No. 160, Qunxian Road, Panyu District, Guangzhou 511430, China; Environment and Health, Guangdong Provincial Key Medical Discipline of Twelfth Five-Year Plan, Guangzhou 511430, China.
Jianpeng
J
Xiao
Guangdong Provincial Institute of Public Health, Guangdong Provincial Center for Disease Control and Prevention, No. 160, Qunxian Road, Panyu District, Guangzhou 511430, China; Environment and Health, Guangdong Provincial Key Medical Discipline of Twelfth Five-Year Plan, Guangzhou 511430, China.
Wei Lin
WL
Zeng
Liwan Center for Disease Control and Prevention, Guangzhou 510176, China.
Wan Fang
WF
Zhang
Griffith University, Brisbane 4111, Australia.
Cordia
C
Chu
Griffith University, Brisbane 4111, Australia.
Kandice
K
Keogh
Griffith University, Brisbane 4111, Australia.
Shannon
S
Rutherford
Department of Epidemiology, School of Public Health, Saint Louis University, Saint Louis, MO 63104, USA.
Zhengmin
Z
Qian
Climate Center of Guangdong Province, Guangzhou 510080, China.
Yao Dong
YD
Du
Guangdong Provincial Institute of Public Health, Guangdong Provincial Center for Disease Control and Prevention, No. 160, Qunxian Road, Panyu District, Guangzhou 511430, China; School of Medicine, Jinan University, Guangzhou 510632, China.
Mengjue
M
Hu
Guangdong Provincial Institute of Public Health, Guangdong Provincial Center for Disease Control and Prevention, No. 160, Qunxian Road, Panyu District, Guangzhou 511430, China; Environment and Health, Guangdong Provincial Key Medical Discipline of Twelfth Five-Year Plan, Guangzhou 511430, China. Electronic address: mwj68@vip.tom.com.
Wen Jun
WJ
Ma
D000393:Air Pollutants / Q000032:analysis*; D000397:Air Pollution / Q000706:statistics & numerical data*; D002318:Cardiovascular Diseases / Q000401:mortality*; D002561:Cerebrovascular Disorders / Q000401:mortality*; D002681:China / Q000453:epidemiology; D004391:Dust / Q000032:analysis*; D004781:Environmental Exposure / Q000032:analysis / Q000706:statistics & numerical data*; D005260:Female; D006801:Humans; D016014:Linear Models; D008297:Male; D012140:Respiratory Tract Diseases / Q000401:mortality*; D012621:Seasons
D000393:Air Pollutants; D004391:Dust
Dust–haze; Excess risk; Lag effect; Mortality; Season