Modification of the effects of air pollutants on mortality by temperature: A systematic review and meta-analysis
Article
Article Title | Modification of the effects of air pollutants on mortality by temperature: A systematic review and meta-analysis |
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ERA Journal ID | 3551 |
Article Category | Article |
Authors | Li, Jing (Author), Woodward, Alistair (Author), Hou, Xiang-Yu (Author), Zhu, Tong (Author), Zhang, Jinliang (Author), Brown, Helen (Author), Yang, Jun (Author), Qin, Rennie (Author), Gao, Jinghong (Author), Gu, Shaohua (Author), Li, Jing (Author), Xu, Lei (Author), Liu, Xiaobo (Author) and Liu, Qiyong (Author) |
Journal Title | Science of the Total Environment |
Journal Citation | 575, pp. 1556-1570 |
Number of Pages | 15 |
Year | 2017 |
Publisher | Elsevier |
Place of Publication | Netherlands |
ISSN | 0048-9697 |
1879-1026 | |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.scitotenv.2016.10.070 |
Web Address (URL) | https://www.sciencedirect.com/science/article/pii/S0048969716322367 |
Abstract | Highlights - This is the first review and meta-analysis on the modification of pollutants' effects on mortality by temperature. - We found temperature extremes modify the effects of PM10 and O3 on both non-accidental and cardiovascular mortality. - There may be value in promoting use of early warning systems on extremely hot or cold days that are also heavily polluted. Abstract Temperature extremes and air pollution both pose significant threats to human health, but it remains uncertain whether pollutants' effects on mortality are modified by temperature levels. In this review, we summarized epidemiologic evidence on the modification by temperature of the acute effects of air pollutants on non-accidental and cardiovascular mortality. The EMBASE, PubMed, ProQuest Dissertations and Theses, and Elsevier Science Direct databases were used to identify papers published up to 2nd December 2014. Studies with appropriate design, exposures and outcome indicators, quantitative estimates and high/intermediate quality were included. Twenty-one studies met the inclusion criteria, of which 12 reported the effects of PM10 on mortality modified by temperature, 10 studied O3, and the rest examined NO2, SO2, PM2.5, PM10-2.5, CO and black smoke. We divided temperature into low, medium, and high categories as defined in each study. In high temperature days, a 10μg/m3 increment in PM10 concentration corresponded to pooled estimates of 0.78% (95% CI: 0.44%, 1.11%) and 1.28% (0.66%, 1.91%) increase in non-accidental and cardiovascular mortality, both statistically significantly higher than the estimates in medium temperature stratum. Pooled effects of O3 on non-accidental mortality on low and high temperature days were increases of 0.48% (0.28%, 0.69%) and 0.47% (0.32%, 0.63%) respectively, for 10μg/m3 increase in exposure, both significantly higher than the increase of 0.20% (0.07%, 0.34%) on medium temperature days. The effect of O3 on cardiovascular mortality was strongest on high temperature days with pooled estimate of 1.63% (1.14%, 2.13%). No significant interactions between SO2/NO2 and temperature were detected by meta-analysis. Other pollutants were not analyzed due to the lack of suitable studies. In summary, we observed interactions between high temperature and PM10 and O3 in the effects on non-accidental and cardiovascular mortality. Low temperature modified the effects of air pollutants but not in a consistent fashion: the effect of PM10 oncardiovascular mortality was diminished but the association between O3 and non-accidental mortality was strengthened. |
Keywords | Air pollution; Extreme temperature; Meta-analysis; Modification; Mortality; Systematic review |
ANZSRC Field of Research 2020 | 420203. Environmental epidemiology |
410402. Environmental assessment and monitoring | |
Byline Affiliations | Chinese Centre for Disease Control and Prevention, China |
University of Auckland, New Zealand | |
Queensland University of Technology | |
Peking University, China | |
Chinese Research Academy of Environmental Sciences, China | |
Campden BRI, United Kingdom | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q6650/modification-of-the-effects-of-air-pollutants-on-mortality-by-temperature-a-systematic-review-and-meta-analysis
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