Pollution. On a international scale, China, India, and South Asia have the most serious particulate matter pollution on the planet [1]. In China, since 2011, Beijing ianjin ebei [2], the Yangtze River Delta [3], and also other regions have experienced frequent smog, and air pollution has triggered widespread concern. Higher concentrations of PM2.5 can, not simply accelerate the formation of haze but also significantly impact people’s well being [4]. It has been proved that long-term exposure to higher PM levels can easily lead to many different illnesses [5] and increaseAtmosphere 2021, 12, 1324. https://doi.org/10.3390/atmoshttps://www.mdpi.com/journal/atmosphereAtmosphere 2021, 12,two ofthe threat of death [6]. In 2017, the State Ministry of Environmental Protection issued the “Beijing ianjin ebei and Surrounding Area Air Pollution Prevention and Manage Function Strategy in 2017”, which first proposed the notion of “2 + 26 cities” and implemented a sizable quantity of pollution control measures in these cities to alleviate air pollution in North China. For that reason, strengthening scientific understanding with the regulations of regional air particulate pollution will enable to formulate urbanization policies and make sure that targeted air pollution control measures are effectively implemented. At present, study on PM2.5 pollutions primarily focuses on temporal and spatial distribution guidelines [7], influencing factor analyses [8], source analyses [9], and overall health risk assessments [10] along with other aspects. Among them, influencing aspects mainly include things like meteorological factors and socio-economic things. Meteorological variables impact PM2.5 concentration by altering its diffusion and chemical reaction conditions. Chen et al. [11] summarized the strategies to quantify the influence of meteorological variables on PM2.5 and comprehensively reviewed their influence mechanisms. Xu et al. [12] carried out a study around the temporal and spatial distributions in the influence of meteorological circumstances on PM2.five concentration in China from 2000 to 2017, which showed an general downward trend in PM2.five concentration, as well as the influence of meteorology varied considerably in between unique provinces. The socio-economic elements that directly or indirectly impact PM2.five concentration within the approach of urbanization and economic improvement, include things like the national economy, industrial structure, population density, transportation, along with other things [13]. These elements primarily represent the effect of human activities on PM2.five . The typical urban PM2.5 level is mainly impacted by anthropogenic emissions of regional air pollutants as well as the surrounding ecological level. Cheng et al. [14] utilised a dynamic spatial panel model to analyze the effect of foreign direct investment (FDI) on Allylestrenol MedChemExpress China’s PM2.5 pollutions, plus the final results showed that FDI considerably aggravated China’s urban PM2.5 pollutions. The study of Yan et al. [15] expressed that there was a heterogeneous partnership among PM2.5 concentration and economic development, urbanization, industrialization, and FDI and that population density had the greatest constructive influence on PM2.5 pollution. Zhang et al. [16] noted that PM2.five pollution was positively correlated with urbanization and road density, and negatively correlated using the proportion of tertiary industries. Though several research Barnidipine Neuronal Signaling happen to be carried out around the temporal and spatial distributions of PM2.five and its influencing aspects, the study regions of most research primarily focus on the amount of nations, urban agglomerations, and citi.