Published in:
29-12-2023 | Air Pollutants | Original Article
The combined effect of air pollution and non-optimal temperature on mortality in Shandong Province, China: establishment of air health index
Authors:
Shuyue Niu, Junli Tang, Kejia Hu, Xiaohui Xu, Jing Dong, Jie Chu, Xiaolei Guo, Haitao Wang, Yanwen Cao, Qi Zhao, Lovel Fornah, Zilong Lu, Wei Ma
Published in:
International Archives of Occupational and Environmental Health
|
Issue 2/2024
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Abstract
Purpose
The air health index (AHI) captures the combined effects of air pollution and non-optimal temperatures and helps assess the atmospheric environment’s overall health risk. Shandong Province is a crucial industrial base in China, and the health effects of air pollution and non-optimal temperature cannot be ignored. To construct an AHI for Shandong Province and assess the district-level mortality burden due to AHI in the study area.
Methods
Daily district-specific mortality, meteorological, and air pollution data over 2013–2018 were collected in Shandong Province, China. The AHI construction eventually incorporated PM2.5 and NO2, O3, and non-optimal temperatures. Attributable fraction (AF) and attributable number (AN) were used to estimate the district-specific mortality burden attributable to AHI.
Results
The average AHI value observed in Shandong Province was 6. Our research revealed a positive association between the total AHI and total mortality, with an overall trend of a slow increase followed by a rapid increase. The exposure–response curves, when stratified by gender, age, and cause of death, were approximately consistent with the overall trend. The provincial attributable fraction (AF) was 5.31% (95% CI 4.58%, 5.91%), and the attributable number (AN) was 188,246 (95% CI 162,396, 209,533). Overall, higher ANs mainly appeared in the southwestern area, while higher values of AF were observed in the central-eastern and central-northern areas.
Conclusions
The air health index performs well in predicting death burden and can convey health risks related to exposure to the ambient environment to the public.