OCCUPATION AND HEALTH ›› 2023, Vol. 39 ›› Issue (5): 577-583.

• Treatise •    

Impact of air pollution and meteorological factors on different populations and acute and chronic respiratory diseases in Zhengzhou City

LIN Shan-shan1, HE Hui-hui1, JIA Rui1, DU Juan1, MA Ning-yi1, LI Ya1,2   

  1. 1. Henan Key Laboratory of Chinese Medicine for Respiratory Disease,Henan University of Chinese Medicine,Zhengzhou Henan 450046,China;
    2. Respiratory Pharmacological Laboratory of Chinese Medicine,First Hospital Affiliated to Henan University of Chinese Medicine,Zhengzhou Henan 450000,China
  • Received:2022-07-27 Revised:2022-08-22 Published:2026-03-03
  • Contact: LI Ya,Associate chief physician,E-mail:liya@hactcm.edu.cn

Abstract: Objective To explore the influence of air pollutants and meteorological factors on the outpatient visits of respiratory diseases in Zhengzhou City. Methods Based on the data of air pollutants and meteorological factors in Zhengzhou City from October 28,2013 to May 1,2018,the distributed lag non-linear models(DLNM) was used to analyze the exposure-lag effect between air pollutants,meteorological factors and outpatient visits of respiratory system,and the stratified analysis was conducted according to sex,age and acute and chronic respiratory diseases. Results Under the best lag day,for every 10 μg/m3 increase in CO,NO2,SO2,inhalable particulate matter(PM10) and fine particulate matter(PM2.5),the relative risk(RR) value was 1.126(95%CI:1.011-1.254),1.014(95%CI:1.011-1.018),1.006(95%CI:1.002-1.010),1.001(95%CI:1.000-1.002),1.001(95%CI:1.000-1.001),respectively. The atmospheric O3 concentration had no significant effect on the number of outpatients. The low temperature and low relative humidity(RH) had a greater impact on the outpatient visits of respiratory diseases. The subgroup analysis showd,females were particularly vulnerable to PM2.5,PM10,SO2,and NO2,while CO had a greater impact on males. PM2.5,PM10,NO2 and CO had a greater impact on population with chronic respiratory diseases,aged <19 years old and aged ≥60 years old. SO2 had a greater impact on population with acute respiratory diseases,aged 19-<60 years old and aged ≥60 years old. The low temperature and low RH had a greater impact on females and people aged ≥60 years old. Conclusion The air pollutants and meteorological factors have a significant impact on the outpatient visits of respiratory diseases,and female and people aged <19 and ≥60 years old are more sensitive.

Key words: Respiratory diseases, Air pollutants, Meteorological factor, Distributed lag non-linear model

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