Abstract
Recently, the burden of lung cancer (LC) has attracted global attention. Meanwhile, LC has become the leading cause of death in China. Many studies found a strong link between air pollutants and the risk of LC mortality in some large cities, but the results have been inconsistent, and most studies have only focused on the daily effects of six pollutants in large cities, ignoring their potential cumulative effects. This study was to investigate the weekly effects of six air pollutants (CO, NO2, O3, PM2.5, PM10, and SO2) on LC mortality in rural areas of eastern China and to further clarify which population groups were susceptible to air pollution and seasonal trends. First, a generalized additive model was combined with a distributed lag nonlinear model to evaluate the individual impact of air pollution on LC deaths in each area. The random-effect model was then used to pool the associations between air pollutants and LC mortality risk in ten counties or districts. The results showed that six air pollutants had a statistically significant effect on the risk of LC mortality at different lag weeks. The effects of NO2, PM10, and CO on weekly LC mortality were strongest at a cumulative lag of 1, 0, and 1 week, respectively, the maximum cumulative risk ratio (RR) of 1.37 (95%CI: 1.23 to 1.52), 1.30 (95%CI: 1.15 to 1.46), and 1.30 (95%CI: 1.17 to 1.43), with interquartile concentrations increasing. In summary, air pollution was an important factor in LC mortality, and the effect was stronger on males, the elderly, and during cold season. It was suggested that relevant departments should formulate air pollution management measures for the elderly, males, and in different seasons in rural areas and reduce the burden of lung cancer caused by air pollution.
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The datasets analyzed during the current study are available from the corresponding author on reasonable request.
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This work was funded by the National Natural Science Foundation of China (grant number: 71804002) and Special Foundation for Science and Technology Development of Central Government Guiding Locals (contract number: 202007d07050008).
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Zhenqiu Zha, Guoao Li, Zhirong Liu, and Fen Huang collaboratively designed the study, both making substantial intellectual contributions. Zhenqiu Zha analyzed the data and drafted the manuscript together with Guoao Li. Yili Lv, Zhirong Liu, and Fen Huang revised the manuscript. Lingli Liu, Jialiu He, and Wei Xu contributed to collecting the data. Dan Dai and Jialiu He contributed in interpreting the data. Zhenqiu Zha and Guoao Li contributed equally. All authors read and approved the final manuscript.
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Zhenqiu Zha and Guoao Li contributed equally to this work and should be considered as co-first authors.
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Zha, Z., Li, G., Lv, Y. et al. The effects of air pollution on the lung cancer mortality in rural areas of eastern China: a multi-region study. Environ Sci Pollut Res 29, 45716–45729 (2022). https://doi.org/10.1007/s11356-022-19027-y
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DOI: https://doi.org/10.1007/s11356-022-19027-y