Authors: Qian Yin*,
Topics: Geographic Information Science and Systems
Keywords: cardiovascular disease, respiratory disease, PM10, PM2.5, temperature
Session Type: Paper
Start / End Time: 4:30 PM / 6:10 PM
Room: Taylor, Marriott, Mezzanine Level
Presentation File: No File Uploaded
Although many studies have examined the effects of air pollution on the cardiovascular disease (CVD) and respiratory disease (RD) mortality, specific risks related to the demographic features have less been explored. We employed a generalized additive model (GAM) to estimate the interaction effects of PM2.5, PM10 and temperature on CVD and RD mortality in Beijing. Both them were statistically significantly and positively associated with CVD and RD deaths. The PM on RD mortality was more significant than that on CVD mortality. For RD, the effects of PM10 and PM2.5 were remarkably stronger on high-temperature days and weaker on normal and low-temperature days. On extremely high-temperature (5th percentile) days, a 10μg/m3 increase in PM10 and PM2.5 was found to cause 3.67% (95% CI, 1.81-5.53) and 4.54% (95% CI, 2.43-6.65) increases in RD mortality levels, respectively. Similarly, on extremely low-temperature (95th percentile) days, 10μg/m3 increases in PM10 and PM2.5 caused 0.77% (95% CI, -0.72-2.26) and 0.72% (95% CI, -0.89-2.34) increases in RD mortality levels, respectively. As temperatures decreased, the adverse effects of PM became more pronounced. For CVD mortality, the PM impact was stronger on extremely high-temperature days than on normal and extremely low-temperature days. On extremely high-temperature (5th percentile) days, the mean percentage increase in daily CVD mortality levels for every 10μg/m3 increase in PM2.5 and PM10 concentrations was 1.06% (95% CI, 0.06-2.06) and 0.93% (95% CI, 0.04-1.82), respectively. These findings may help refine public health intervention measures to reduce and prevent PM-related deaths.