Hourly peak PM2.5 concentration associated with increased cardiovascular mortality in Guangzhou, China

Hualiang Lin, Tao Liu, Jianpeng Xiao, Weilin Zeng, Lingchuan Guo, Xing Li, Yanjun Xu, Yonghui Zhang, Jen Jen Chang, Michael George Vaughn, Zhengmin Qian, Wenjun Ma

Research output: Contribution to journalArticle

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Abstract

Hourly peak concentration may capture health effects of ambient fine particulate matter pollution (PM 2.5 ) better than daily averages. We examined the associations of hourly peak concentration of PM 2.5 with cardiovascular mortality in Guangzhou, China. We obtained daily data on cardiovascular mortality and hourly PM 2.5 concentrations in Guangzhou from 19 January 2013 through 30 June 2015. Generalized additive models were applied to evaluate the associations with adjustment for potential confounding factors. Significant associations were found between hourly peak concentrations of PM 2.5 and cardiovascular mortality, particularly from ischemic heart diseases (IHD) and cerebrovascular diseases (CBD). Every 10 μg/m3 increment of hourly peak PM 2.5 at lag 03 day was associated with a 1.15% (95% CI: 0.67%, 1.63%); 1.02% (95% CI: 0.30%, 1.74%) and 1.09% (95% CI: 0.27%, 1.91%) increase in mortalities from total cardiovascular diseases, IHD and CBD, respectively. The effects remained after adjustment for daily mean PM 2.5 and gaseous air pollutants, though there was a high correlation between PM 2.5 peak and PM 2.5 mean (correlation coefficient = 0.95). No significant association was observed for acute myocardial infarction (AMI). In addition to daily mean concentration of PM 2.5 , hourly peak concentration of PM 2.5 might be one important risk factor of cardiovascular mortality and should be considered as an important air pollution indicator when assessing the possible cardiovascular effects of PM 2.5 .

Original languageEnglish
Pages (from-to)333-338
Number of pages6
JournalJournal of Exposure Science and Environmental Epidemiology
Volume27
Issue number3
DOIs
Publication statusPublished - 2017 May 1

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China
Mortality
Cerebrovascular Disorders
Myocardial Ischemia
Air Pollutants
Particulate Matter
Air Pollution
Air pollution
Pollution
Cardiovascular Diseases
Myocardial Infarction
Health
Air

All Science Journal Classification (ASJC) codes

  • Epidemiology
  • Toxicology
  • Pollution
  • Public Health, Environmental and Occupational Health

Cite this

Lin, Hualiang ; Liu, Tao ; Xiao, Jianpeng ; Zeng, Weilin ; Guo, Lingchuan ; Li, Xing ; Xu, Yanjun ; Zhang, Yonghui ; Chang, Jen Jen ; Vaughn, Michael George ; Qian, Zhengmin ; Ma, Wenjun. / Hourly peak PM2.5 concentration associated with increased cardiovascular mortality in Guangzhou, China. In: Journal of Exposure Science and Environmental Epidemiology. 2017 ; Vol. 27, No. 3. pp. 333-338.
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Hourly peak PM2.5 concentration associated with increased cardiovascular mortality in Guangzhou, China. / Lin, Hualiang; Liu, Tao; Xiao, Jianpeng; Zeng, Weilin; Guo, Lingchuan; Li, Xing; Xu, Yanjun; Zhang, Yonghui; Chang, Jen Jen; Vaughn, Michael George; Qian, Zhengmin; Ma, Wenjun.

In: Journal of Exposure Science and Environmental Epidemiology, Vol. 27, No. 3, 01.05.2017, p. 333-338.

Research output: Contribution to journalArticle

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