Tempo-Spatial Variations of Ambient Ozone-Mortality Associations in the USA: Results from the NMMAPS Data

International Journal of Environmental Research and Public Health

Shannon Rutherford¹  Zhengmin Qian²  Baixiang Feng³  Jianpeng Xiao³  Tao Liu³  Zhihao Li³  Wenjun Ma³  Xing Li³  Weilin Zeng³  Hualiang Lin³ 

[1] Centre for Environment and Population Health, Griffith University, Brisbane 4111, Australia;Department of Epidemiology, College for Public Health and Social Justice, Saint Louis University, St. Louis, MO 63104, USA;Guangdong Provincial Institute of Public Health, Guangdong Provincial Center for Disease Control and Prevention, No. 160, Qunxian Road, Panyu District, Guangzhou 511430, China;

关键词: air pollution;    ambient ozone;    mortality;    time-series study;    seasonal variation;    USA;   

DOI  :  10.3390/ijerph13090851

来源: DOAJ

【 摘 要 】

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.

【 授权许可】

Unknown