Interaction between ambient particles and ozone and its effect on daily mortality.
OBJECTIVE
To examine the effect of particulate matter (PM) less than 10 microns in diameter (PM10) and ozone (O3) on daily mortality in Shanghai, China.


METHODS
A generalized additive model with penalized spline function was used to observe the acute effect of PM10 and O3 on daily mortality.


RESULTS
Higher PM10 significantly increased the effect of O3 on total mortality, and O3 also increased the effect of PM10 although the estimated increment was statistically insignificant.


CONCLUSIONS
Our findings provide further evidence for the effect of PM10 and O3 on daily mortality.
Chen
Guo-Hai
GH
Shanghai Environmental Monitoring Center, Shanghai 200030, China.
Song
Gui-Xiang
GX
Jiang
Li-Li
LL
Zhang
Yun-Hui
YH
Zhao
Nai-Qing
NQ
Chen
Bing-Heng
BH
Kan
Hai-Dong
HD
D000393:Air Pollutants / Q000633:toxicity*; D002681:China / Q000453:epidemiology; D006801:Humans; D009026:Mortality; D010126:Ozone / Q000633:toxicity*; D014505:Urban Population
D000393:Air Pollutants; D010126:Ozone