Shen Jiahui, Ma Yuxia, Zhang Yifan, Zhang Caixia, Wang Wanci, Qin Pengpeng, Yang Lijie
College of Atmospheric Sciences, Key Laboratory of Semi-Arid Climate Change, Ministry of Education, Lanzhou University, Lanzhou, 730000, China.
First People's Hospital of Dingxi, Dingxi, 743000, China.
Environ Sci Pollut Res Int. 2023 May;30(22):61778-61788. doi: 10.1007/s11356-023-26322-9. Epub 2023 Mar 18.
Increasing studies have reported temperature modification effects on air pollutants-induced respiratory diseases. In the current study, daily data of respiratory emergency room visits (ERVs), meteorological factors, and concentrations of air pollutants were collected from 2013 to 2016 in Lanzhou, a northwest city in China. Daily average temperature was stratified into low (≤ 25 percentile, P), medium (25-75 percentile, P-P) and high (≥ 75 percentile, P) to explore how temperature modifies the effects of air pollutants (PM, PM, SO, and NO) on respiratory ERVs by using generalized additive Poisson regression model (GAM). Seasonal modification was also investigated. Results showed that (a) PM, PM, and NO had the strongest effects on respiratory ERVs in low temperature; (b) males and 15-and-younger were more vulnerable in low temperature while females and those older than 46 years were highly affected in high temperature; (c) PM, PM, and NO were mostly associated with the total and both males and females in winter, while SO resulted in the highest risk for the total and males in autumn and females in spring. In conclusion, this study found significant temperature modification effects and seasonal differences on the risks of respiratory ERVs due to air pollutants in Lanzhou, China.
越来越多的研究报告了温度变化对空气污染物所致呼吸系统疾病的影响。在本研究中，收集了2013年至2016年中国西北城市兰州的呼吸系统急诊就诊（ERV）每日数据、气象因素和空气污染物浓度。将日平均温度分为低（≤25百分位数，P）、中（25 - 75百分位数，P - P）和高（≥75百分位数，P）三个等级，采用广义相加泊松回归模型（GAM）探讨温度如何改变空气污染物（PM、PM、SO和NO）对呼吸系统ERV的影响。还研究了季节变化的影响。结果表明：（a）PM、PM和NO在低温时对呼吸系统ERV的影响最强；（b）男性和15岁及以下人群在低温时更易受影响，而女性和46岁以上人群在高温时受影响较大；（c）PM、PM和NO在冬季与总就诊人数以及男性和女性的相关性最高，而SO在秋季导致总就诊人数和男性的风险最高，在春季导致女性的风险最高。总之，本研究发现中国兰州因空气污染物导致的呼吸系统ERV风险存在显著的温度变化影响和季节差异。
