Effects of air pollutants and meteorological factors on childhood asthma in Hohhot urban area

LIANG Xiaoping; ZHANG Yuling; ZHANG Qiaoling; HAN Fang

doi:10.11852/zgetbjzz2023-0211

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Chinese Journal of Child Health Care ›› 2023, Vol. 31 ›› Issue (11) : 1260-1264. DOI: 10.11852/zgetbjzz2023-0211

Clinical Research

Effects of air pollutants and meteorological factors on childhood asthma in Hohhot urban area

LIANG Xiaoping¹, ZHANG Yuling¹, ZHANG Qiaoling¹, HAN Fang²

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Abstract

Objective To investigate the correlation of childhood asthma with air pollutants and meteorological factors in Hohhot urban area, and to determine the main environmental factors affecting the incidence of asthma in children of all ages, so as to provide reference for formulating targeted prevention and emergency measures. Methods The treatment information of childhood asthma in Hohhot urban area from 2015 to 2019 was retrospectively analyzed, and the concentration data of main air pollutants and meteorological data in the same period were statistically collected. The correlations of childhood asthma at all ages with air pollutants and meteorological factors were analyzed to clarify the effects of air pollutants and meteorological factors on childhood asthma. Results During the infant period, the number of asthma patients in spring was positively correlated with NO₂ concentration (r=0.351, P=0.049), and the number of asthma patients in summer was negatively correlated with concentrations of PM_2.5 (r=-0.445, P=0.010)and CO (r=-0.441,P=0.010), and the number of asthma patients in winter was positively correlated with CO concentration (r=0.544,P=0.011). The number of school-age children with asthma in winter was positively correlated with the concentrations of CO (r=0.690, P=0.003) and SO₂ (r=0.808, P＜0.001). There were significant correlations between air pollutants and meteorological factors. Conclusions Meteorological factors play an important role in the diffusion of air pollutants. In the prevention of asthma in children, it is important to keep abreast of air pollution and climate change and to implement targeted prevention and control measures in different seasons.

Key words

childhood asthma / air pollution / meteorological factors / seasonality / age

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LIANG Xiaoping, ZHANG Yuling, ZHANG Qiaoling, HAN Fang. Effects of air pollutants and meteorological factors on childhood asthma in Hohhot urban area[J]. Chinese Journal of Child Health Care. 2023, 31(11): 1260-1264 https://doi.org/10.11852/zgetbjzz2023-0211

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