Impact of PM2.5 Concentration on Winter Light Rain in North China
This study investigated the spatial distribution and temporal variations of winter PM2.5 concentrations and light precipitation in North China from 2013 to 2022, and explored the relationship between them. The results show that winter PM2.5 concentrations in North China exhibit a south-high-north-lo...
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| Language: | English |
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EDP Sciences
2025-01-01
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| Series: | E3S Web of Conferences |
| Online Access: | https://www.e3s-conferences.org/articles/e3sconf/pdf/2025/28/e3sconf_eppct2025_02010.pdf |
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| author | Xiong Na Zang Zengliang Liu Lang |
| author_facet | Xiong Na Zang Zengliang Liu Lang |
| author_sort | Xiong Na |
| collection | DOAJ |
| description | This study investigated the spatial distribution and temporal variations of winter PM2.5 concentrations and light precipitation in North China from 2013 to 2022, and explored the relationship between them. The results show that winter PM2.5 concentrations in North China exhibit a south-high-north-low spatial pattern, with higher concentrations in the east than in the west, and a maximum average PM2.5 concentration exceeding 100 μg/m3. The overall interannual PM2.5 concentration shows a decreasing trend, which is most significant in the northern part of Hebei Province. Winter precipitation in North China demonstrates a similar south-high-north-low spatial pattern, with an upward trend in mean annual precipitation. PM2.5 concentration changes predominantly influence the frequency of light rainfall events. The relationship between PM2.5 concentrations and light rainfall frequency shows a clear spatial pattern: a significant positive correlation is observed west of the Taihang-Yanshan mountain range, and a negative correlation east of the mountain range. This occurs because rainfall frequency initially increases then decreases with increasing PM2.5 concentration. The differing background PM2.5 concentrations on either side of the mountain range result in opposing trends in light rainfall frequency relative to PM2.5 concentration changes. |
| format | Article |
| id | doaj-art-e7d825408e494e568151a9dbc74a5aa6 |
| institution | OA Journals |
| issn | 2267-1242 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | E3S Web of Conferences |
| spelling | doaj-art-e7d825408e494e568151a9dbc74a5aa62025-08-20T02:26:09ZengEDP SciencesE3S Web of Conferences2267-12422025-01-016280201010.1051/e3sconf/202562802010e3sconf_eppct2025_02010Impact of PM2.5 Concentration on Winter Light Rain in North ChinaXiong Na0Zang Zengliang1Liu Lang2School of Meteorology and Oceanography, National University of Defense TechnologySchool of Meteorology and Oceanography, National University of Defense TechnologySchool of Meteorology and Oceanography, National University of Defense TechnologyThis study investigated the spatial distribution and temporal variations of winter PM2.5 concentrations and light precipitation in North China from 2013 to 2022, and explored the relationship between them. The results show that winter PM2.5 concentrations in North China exhibit a south-high-north-low spatial pattern, with higher concentrations in the east than in the west, and a maximum average PM2.5 concentration exceeding 100 μg/m3. The overall interannual PM2.5 concentration shows a decreasing trend, which is most significant in the northern part of Hebei Province. Winter precipitation in North China demonstrates a similar south-high-north-low spatial pattern, with an upward trend in mean annual precipitation. PM2.5 concentration changes predominantly influence the frequency of light rainfall events. The relationship between PM2.5 concentrations and light rainfall frequency shows a clear spatial pattern: a significant positive correlation is observed west of the Taihang-Yanshan mountain range, and a negative correlation east of the mountain range. This occurs because rainfall frequency initially increases then decreases with increasing PM2.5 concentration. The differing background PM2.5 concentrations on either side of the mountain range result in opposing trends in light rainfall frequency relative to PM2.5 concentration changes.https://www.e3s-conferences.org/articles/e3sconf/pdf/2025/28/e3sconf_eppct2025_02010.pdf |
| spellingShingle | Xiong Na Zang Zengliang Liu Lang Impact of PM2.5 Concentration on Winter Light Rain in North China E3S Web of Conferences |
| title | Impact of PM2.5 Concentration on Winter Light Rain in North China |
| title_full | Impact of PM2.5 Concentration on Winter Light Rain in North China |
| title_fullStr | Impact of PM2.5 Concentration on Winter Light Rain in North China |
| title_full_unstemmed | Impact of PM2.5 Concentration on Winter Light Rain in North China |
| title_short | Impact of PM2.5 Concentration on Winter Light Rain in North China |
| title_sort | impact of pm2 5 concentration on winter light rain in north china |
| url | https://www.e3s-conferences.org/articles/e3sconf/pdf/2025/28/e3sconf_eppct2025_02010.pdf |
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