AUTHOR=Wang Heng , Wang Zhiming , Wang Ruixin TITLE=Characteristics of dust pollution and its influencing factors during cold period of open-pit coal mines in northern China JOURNAL=Frontiers in Earth Science VOLUME=13 YEAR=2025 URL=https://www.frontiersin.org/journals/earth-science/articles/10.3389/feart.2025.1458847 DOI=10.3389/feart.2025.1458847 ISSN=2296-6463