title: Tempo-Spatial Variations of Ambient Ozone-Mortality Associations in the USA: Results from the NMMAPS Data.
abstract: Although the health effects of ambient ozone have been widely assessed, their tempo-spatial variations remain unclear. We selected 20 communities (ten each from southern and northern USA) based on the US National Morbidity, Mortality, and Air Pollution Study (NMMAPS) dataset. A generalized linear model (GLM) was used to estimate the season-specific association between each 10 ppb (lag0-2 day average) increment in daily 8 h maximum ozone concentration and mortality in every community. The results showed that in the southern communities, a 10 ppb increment in ozone was linked to an increment of mortality of -0.07%, -0.17%, 0.40% and 0.27% in spring, summer, autumn and winter, respectively. For the northern communities, the excess risks (ERs) were 0.74%, 1.21%, 0.52% and -0.65% in the spring, summer, autumn and winter seasons, respectively. City-specific ozone-related mortality effects were positively related with latitude, but negatively related with seasonal average temperature in the spring, summer and autumn seasons. However, a reverse relationship was found in the winter. We concluded that there were different seasonal patterns of ozone effects on mortality between southern and northern US communities. Latitude and seasonal average temperature were identified as modifiers of the ambient ozone-related mortality risks.
authors: Guangdong Provincial Institute of Public Health, Guangdong Provincial Center for Disease Control and Prevention, No. 160, Qunxian Road, Panyu District, Guangzhou 511430, China. gztt_2002@163.com.|Environment and Health, Guangdong Provincial Key Medical Discipline of Twelfth Five-Year Plan, Guangzhou 511430, China. gztt_2002@163.com.
authors: Tao
authors: T
authors: Liu
authors: Guangdong Provincial Institute of Public Health, Guangdong Provincial Center for Disease Control and Prevention, No. 160, Qunxian Road, Panyu District, Guangzhou 511430, China. letitiazeng@foxmail.com.|Environment and Health, Guangdong Provincial Key Medical Discipline of Twelfth Five-Year Plan, Guangzhou 511430, China. letitiazeng@foxmail.com.
authors: Weilin
authors: W
authors: Zeng
authors: Guangdong Provincial Institute of Public Health, Guangdong Provincial Center for Disease Control and Prevention, No. 160, Qunxian Road, Panyu District, Guangzhou 511430, China. linhualiang2002@163.com.|Environment and Health, Guangdong Provincial Key Medical Discipline of Twelfth Five-Year Plan, Guangzhou 511430, China. linhualiang2002@163.com.
authors: Hualiang
authors: H
authors: Lin
authors: Centre for Environment and Population Health, Griffith University, Brisbane 4111, Australia. s.rutherford@griffith.edu.au.
authors: Shannon
authors: S
authors: Rutherford
authors: Guangdong Provincial Institute of Public Health, Guangdong Provincial Center for Disease Control and Prevention, No. 160, Qunxian Road, Panyu District, Guangzhou 511430, China. jpengx@163.com.|Environment and Health, Guangdong Provincial Key Medical Discipline of Twelfth Five-Year Plan, Guangzhou 511430, China. jpengx@163.com.
authors: Jianpeng
authors: J
authors: Xiao
authors: Guangdong Provincial Institute of Public Health, Guangdong Provincial Center for Disease Control and Prevention, No. 160, Qunxian Road, Panyu District, Guangzhou 511430, China. lixing.echo@foxmail.com.|Environment and Health, Guangdong Provincial Key Medical Discipline of Twelfth Five-Year Plan, Guangzhou 511430, China. lixing.echo@foxmail.com.
authors: Xing
authors: X
authors: Li
authors: Guangdong Provincial Institute of Public Health, Guangdong Provincial Center for Disease Control and Prevention, No. 160, Qunxian Road, Panyu District, Guangzhou 511430, China. zhihaoli1990@163.com.|Environment and Health, Guangdong Provincial Key Medical Discipline of Twelfth Five-Year Plan, Guangzhou 511430, China. zhihaoli1990@163.com.
authors: Zhihao
authors: Z
authors: Li
authors: Department of Epidemiology, College for Public Health and Social Justice, Saint Louis University, St. Louis, MO 63104, USA. zqian2@slu.edu.
authors: Zhengmin
authors: Z
authors: Qian
authors: Guangdong Provincial Institute of Public Health, Guangdong Provincial Center for Disease Control and Prevention, No. 160, Qunxian Road, Panyu District, Guangzhou 511430, China. fengbaixiang@126.com.|Environment and Health, Guangdong Provincial Key Medical Discipline of Twelfth Five-Year Plan, Guangzhou 511430, China. fengbaixiang@126.com.
authors: Baixiang
authors: B
authors: Feng
authors: Guangdong Provincial Institute of Public Health, Guangdong Provincial Center for Disease Control and Prevention, No. 160, Qunxian Road, Panyu District, Guangzhou 511430, China. mawj@gdiph.org.cn.|Environment and Health, Guangdong Provincial Key Medical Discipline of Twelfth Five-Year Plan, Guangzhou 511430, China. mawj@gdiph.org.cn.
authors: Wenjun
authors: W
authors: Ma
mesh_terms: D000393:Air Pollutants / Q000032:analysis / Q000633:toxicity*; D000397:Air Pollution / Q000706:statistics & numerical data*; D002947:Cities; D006801:Humans; D009026:Mortality; D010126:Ozone / Q000032:analysis / Q000633:toxicity*; D012621:Seasons; D062211:Spatio-Temporal Analysis; D013696:Temperature; D013997:Time Factors; D014481:United States
chemical_list: D000393:Air Pollutants; D010126:Ozone
keywords: USA; air pollution; ambient ozone; mortality; seasonal variation; time-series study