| 刊名 | Meteorological and Environmental Research |
| 作者 | Huimin LIU1, Jiankang ZHANG1, Meimei GAO1, Xuejiao GAO2, Yanmei QU1, Qi REN1, Tao XUE3, Zipeng DONG4* |
| 作者单位 | 1. Yulin Meteorological Bureau, Yulin 719000, China; 2. Agricultural Remote Sensing and Economic Crop Meteorological Service Center of Shaanxi Province, Xi'an 710016, China; 3. Children's Hospital of Yulin City, Yulin 719053, China; 4. Shaanxi Institute of Meteorological Sciences, Xi'an 710016, China |
| DOI | 10.19547/j.issn2152-3940.2025.02.008 |
| 年份 | 2025 |
| 刊期 | 2 |
| 页码 | 33-40 |
| 关键词 | Thunderstorm asthma; Severe convective weather; Sudden drop in temperature and cold stimulus; High concentration of artemisia pollen; O3 pollution |
| 摘要 | Based on the number of asthmatic children in the Children's Hospital of Yulin City, the monitoring data of daily pollen concentration, and routine meteorological and environmental monitoring data of Yulin City from 2020 to 2022, the meteorological and environmental conditions of a thunderstorm asthma event in Yulin City in northern Shaanxi on September 9, 2022 were analyzed. The results show that the strong convective weather was accompanied by a strong thunderstorm, lightning, gusts, short-time heavy precipitation and small hail, and the convective activity lasted for nearly 7 h. The short-term abrupt change of allergenic substances such as artemisia pollen caused by lightning, gusts and precipitation, the sudden drop in temperature, the inversion near the surface and the stimulation of cold air were the key meteorological conditions for the subsequent outbreak of asthma. In early September in 2022, the daily average pollen concentration in Yulin City was up to 1 067.9 particles/1 000 mm2, which was 113.3% and 41.2% higher than that of the same period in 2021 and 2020, respectively. The day before the thunderstorm, the pollen concentration soared to 2 680 particles/1 000 mm2, reaching the maximum of the year. The synergistic effect of the thunderstorm event and the sharp increase in pollen concentration on the previous day provided the background of heavy pollen pollution for this outbreak of thunderstorm asthma. O3 concentration was consistently high on the day of thunderstorm and the day before, and the peaks of O3 and PM10 concentration appeared subsequently in the afternoon of the day, which became the background of air pollution for the asthma outbreak. |
