海洋气象学报2025，Vol.45Issue(5)：56-67,12.DOI:10.19513/j.cnki.hyqxxb.20240712001
秋冬交替早期冷空气过程湿度突降对我国过敏性鼻炎发生的影响
Impact of the abrupt air humidity decrease on the occurrence of allergic rhinitis in associated with early cold air activities during the shift season from autumn to winter in China
摘要
Abstract
The Baidu index(BI)of allergic rhinitis(AR),namely AR-BI,and the near surface observations of meteorological elements from 2021 to 2023 are used to evaluate the impact of changes in the meteorological elements on the incidence rate of AR in China.The results are as follows.(1)The analyses of changes in the meteorological elements and synoptic processes reveal a good correspondence between the rapid increase of AR-BI and early cold air activities during the shift season from autumn to winter.The rapid and significant decrease in the daily minimum relative humidity(RH),daily minimum specific humidity and daily minimum equivalent potential temperature during the cold air intrusion is synchronized with the rapid increase of the AR-BI from its background value.(2)During the first or early cold air activities each year,the air humidity decreases rapidly and significantly from the range that is more suitable for the human body in summer and autumn(RH higher than 40％),which may damage the nasal mucosa and could be the main cause of the high incidence of AR during the shift season from autumn to winter,resulting in the period with a high AR-BI from early August to mid-September each year.(3)The influence area of the cold air gradually expands from the north to the south over China during the shift season from autumn to winter,and the dry and cold air with lower humidity also gradually advances from the north to the south,resulting in the beginning and ending times of the AR-BI peak(i.e.the high incidence period of AR)gradually delayed from high latitudes to low latitudes.(4)The variability of the AR-BI is significantly higher in the north than in the south.Compared with the southern region,the cold air has a more significant impact on the northern region,resulting in lower specific humidity and a greater decrease of air humidity in the northern cities,which may lead to a higher incidence rate of AR in the north.关键词
过敏性鼻炎/空气湿度/气象要素/冷空气活动/百度指数Key words
allergic rhinitis(AR)/air humidity/meteorological element/cold air activity/Baidu index(BI)分类
大气科学引用本文复制引用
高杉,屈文军..秋冬交替早期冷空气过程湿度突降对我国过敏性鼻炎发生的影响[J].海洋气象学报,2025,45(5):56-67,12.基金项目
国家重点研发计划重点专项(2022YFC3004200) （2022YFC3004200）
国家自然科学基金项目(U2342214,42075069) （U2342214,42075069）
