期刊
ENVIRONMENTAL POLLUTION
卷 220, 期 -, 页码 317-327出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.envpol.2016.09.065
关键词
Fine particulate matter air pollution; Hospital emergency room visits; Cardiovascular diseases; Beijing, China
资金
- National Natural Science Foundation of China [81373099]
- Beijing Natural Science Foundation [Z160002]
- Career Development Fellowship of Australian National Health and Medical Research Council [APP1107107]
Fine particulate matter (PM2.5) air pollution outbreaks have recently occurred frequently in China. However, evidence of the associations between short-term exposure to PM2.5 and cardiovascular morbidity is still limited in China. This study aimed to evaluate the associations between PM2.5 and hospital emergency room visits (ERVs) for cardiovascular diseases in urban areas in Beijing. Daily counts of cardiovascular ERVs were collected from ten large general hospitals from Jan 1 to Dec 31, 2013. Air pollution data were obtained from the Beijing Environmental Protection Bureau including 17 monitoring stations. A generalized additive Poisson model was used to examine the associations between PM2.5 and cardiovascular ERVs after controlling for seasonality, day of the week, public holidays, influenza outbreaks, and weather conditions. In total, there were 56,221 cardiovascular ERVs during the study period. The daily mean PM2.5 concentration was 102.1 mu g/m(3), ranging from 6.7 mu g/m(3) to 508.5 mu g/m(3). Per 10 mu g/m(3) increase in PM2.5 was associated with a 0.14% (95% confidence interval [CI]: 0.01%-0.27%) increase in cardiovascular ERVs at lags. Cumulative delayed estimates were greatest at lag(0-5) (0.30%, 95% CI: 0.09% -0.52%). The estimates of percentage change in daily ERVs per 10 mu g/m(3) increase in PM2.5 were 0.56% (95%CI: 0.16%-0.95%) for ischemic heart disease (IHD) at lag(0-1), 0.81% (95%CI: 0.05%-1.57%) for heart rhythm disturbances (HRD) at lag(0-1) and 1.21% (95%CI: 0.27%-2.15%) for heart failure (HF) at lag(0), respectively. The effects of PM2.5 on IHD ERVs during high temperature days (>11.01 degrees C) were significantly higher than that on low temperature days (<= 11.01 degrees C) at lag(0), lag(0-3) and lag(0-5) (P < 0.05). The study suggests that PM2.5 has acute impacts on cardiovascular ERVs in Beijing, especially on IHD, HRD and HF. The effects of PM2.5 on IHD ERVs vary by temperature. (C) 2016 The Authors. Published by Elsevier Ltd.
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