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pollution, particularly PM2.5, posing significant threats to public health. This study focused on Lianyungang, an industrial city, to analyze the spatiotemporal variations in PM2.5 concentrations from 2000 to 2023 and identify the influencing factors. Utilizing high-resolution PM2.5 data from the ChinaHighPM2.5 dataset and ERA5 meteorological data, the study employed Empirical Orthogonal Function (EOF) analysis to capture spatial variability and the Bayesian Estimator of Abrupt Change Seasonal and Trend (BEAST) to assess long-term trends and abrupt changes. The key findings include a marked seasonal pattern, with higher PM2.5 levels during the winter months and lower concentrations in the summer, primarily driven by temperature, humidity, and precipitation. A significant decline in PM2.5 levels was observed after 2014, following the implementation of pollution control measures. The study underscores the importance of continued environmental regulation and green technology adoption in mitigating air pollution in rapidly industrializing cities. This research provides a comprehensive analysis of PM2.5 trends and highlights the critical role of natural and human factors, contributing valuable insights for policymakers and researchers aiming to improve air quality.<\/jats:p>","DOI":"10.3390\/rs16234495","type":"journal-article","created":{"date-parts":[[2024,12,2]],"date-time":"2024-12-02T03:50:57Z","timestamp":1733111457000},"page":"4495","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Spatiotemporal Characteristics and Influencing Factors of PM2.5 Levels in Lianyungang: Insights from a Multidimensional Analysis"],"prefix":"10.3390","volume":"16","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-1728-8875","authenticated-orcid":false,"given":"Xue","family":"Li","sequence":"first","affiliation":[{"name":"School of Electronic Engineering, Jiangsu Ocean University, Lianyungang 222005, China"},{"name":"Jiangsu Institute of Marine Resources Development, Jiangsu Ocean University, Lianyungang 222005, China"},{"name":"The State Key Laboratory of Marine Environmental Science, College of Ocean and Earth Sciences, Xiamen University, Xiamen 361102, China"}]},{"given":"Haihong","family":"He","sequence":"additional","affiliation":[{"name":"School of Electronic Engineering, Jiangsu Ocean University, Lianyungang 222005, China"}]},{"ORCID":"https:\/\/orcid.org\/0009-0002-1050-2189","authenticated-orcid":false,"given":"Dewei","family":"Wang","sequence":"additional","affiliation":[{"name":"Lianyungang Branch of Jiangsu Hydrology and Water Resource Survey Bureau, Lianyungang 222004, China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7670-8035","authenticated-orcid":false,"given":"Wenli","family":"Qiao","sequence":"additional","affiliation":[{"name":"Jiangsu Institute of Marine Resources Development, Jiangsu Ocean University, Lianyungang 222005, China"},{"name":"The State Key Laboratory of Marine Environmental Science, College of Ocean and Earth Sciences, Xiamen University, Xiamen 361102, China"},{"name":"School of Marine Technology and Geomatics, Jiangsu Ocean University, Lianyungang 222005, China"}]},{"given":"Chunli","family":"Liu","sequence":"additional","affiliation":[{"name":"Marine College, Shandong University, Weihai 264209, China"}]},{"given":"Yiming","family":"Sun","sequence":"additional","affiliation":[{"name":"School of Electronic Engineering, Jiangsu Ocean University, Lianyungang 222005, China"}]},{"given":"Lulu","family":"Li","sequence":"additional","affiliation":[{"name":"School of Marine Technology and Geomatics, Jiangsu Ocean University, Lianyungang 222005, China"}]},{"given":"Shuting","family":"Han","sequence":"additional","affiliation":[{"name":"School of Marine Technology and Geomatics, Jiangsu Ocean University, Lianyungang 222005, China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3075-405X","authenticated-orcid":false,"given":"Guozhen","family":"Zha","sequence":"additional","affiliation":[{"name":"School of Marine Technology and Geomatics, Jiangsu Ocean University, Lianyungang 222005, China"}]}],"member":"1968","published-online":{"date-parts":[[2024,11,29]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Fino, A. 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