{"title":"Dispersion Analysis of Ambient Coarse Particulate Matter","authors":"Sachin Dhawan, Anand Kumar, Dalip Singh Mehta, Mukesh Khare","doi":"10.1007/s41810-024-00248-2","DOIUrl":null,"url":null,"abstract":"<div><p>This study uses numerical methods and HYSPLIT trajectory cluster analysis to evaluate the influence of wind speed and mixing height on the dispersive potential of PM<sub>10</sub>. The analysis reveals a correlation of 0.58 and 0.44 between PM<sub>10</sub> concentrations and wind speed and mixing height, respectively. Wind speed and mixing height are decisive parameters in modulating PM<sub>10</sub> levels in ambient air. The study highlights that PM<sub>10</sub> concentrations decreased by 41.28% in February with wind speeds over 2 m/s and mixing heights below 400 m. Conversely, in April, PM<sub>10</sub> concentrations increase by 52.65% due to wind-induced resuspension with wind speeds over 2 m/s and mixing heights above 450 m. The findings of this study underscore wind speed as a crucial factor in reducing PM<sub>10</sub> levels during winter, provided the mixing height is sufficiently high, and in increasing PM<sub>10</sub> levels during summer due to resuspension effects.</p></div>","PeriodicalId":36991,"journal":{"name":"Aerosol Science and Engineering","volume":"9 1","pages":"117 - 126"},"PeriodicalIF":2.0000,"publicationDate":"2024-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Aerosol Science and Engineering","FirstCategoryId":"93","ListUrlMain":"https://link.springer.com/article/10.1007/s41810-024-00248-2","RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ENVIRONMENTAL SCIENCES","Score":null,"Total":0}
引用次数: 0
Abstract
This study uses numerical methods and HYSPLIT trajectory cluster analysis to evaluate the influence of wind speed and mixing height on the dispersive potential of PM10. The analysis reveals a correlation of 0.58 and 0.44 between PM10 concentrations and wind speed and mixing height, respectively. Wind speed and mixing height are decisive parameters in modulating PM10 levels in ambient air. The study highlights that PM10 concentrations decreased by 41.28% in February with wind speeds over 2 m/s and mixing heights below 400 m. Conversely, in April, PM10 concentrations increase by 52.65% due to wind-induced resuspension with wind speeds over 2 m/s and mixing heights above 450 m. The findings of this study underscore wind speed as a crucial factor in reducing PM10 levels during winter, provided the mixing height is sufficiently high, and in increasing PM10 levels during summer due to resuspension effects.
期刊介绍：
ASE is an international journal that publishes high-quality papers, communications, and discussion that advance aerosol science and engineering. Acceptable article forms include original research papers, review articles, letters, commentaries, news and views, research highlights, editorials, correspondence, and new-direction columns. ASE emphasizes the application of aerosol technology to both environmental and technical issues, and it provides a platform not only for basic research but also for industrial interests. We encourage scientists and researchers to submit papers that will advance our knowledge of aerosols and highlight new approaches for aerosol studies and new technologies for pollution control. ASE promotes cutting-edge studies of aerosol science and state-of-art instrumentation, but it is not limited to academic topics and instead aims to bridge the gap between basic science and industrial applications. ASE accepts papers covering a broad range of aerosol-related topics, including aerosol physical and chemical properties, composition, formation, transport and deposition, numerical simulation of air pollution incidents, chemical processes in the atmosphere, aerosol control technologies and industrial applications. In addition, ASE welcomes papers involving new and advanced methods and technologies that focus on aerosol pollution, sampling and analysis, including the invention and development of instrumentation, nanoparticle formation, nano technology, indoor and outdoor air quality monitoring, air pollution control, and air pollution remediation and feasibility assessments.
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