Analysis of Haze Pollution Based on Principal Component Analysis in Jinan City

With the rapid development of economy, the quality of atmospheric environment is gradually getting worse, and the frequent occurrence of haze weather has seriously affected people's lives. Taking Jinan City as the research object, this paper adopts the method of principal component analysis, and selects 13 indexes such as regional gross product, secondary industry proportion, motor vehicle ownership, central heating area, etc. Based on the data from 2007 to 2016, this paper analyzes the haze pollution situation in Jinan City. The results show that from 2007 to 2015, the haze pollution situation in Jinan City showed an upward trend. In 2015, the haze pollution in Jinan City reached its peak. After that, the haze pollution change showed a downward trend until 2016, and the atmospheric environment gradually improved. Two principal components were extracted from the results of principal component analysis. Among them, the socioeconomic factors with variance contribution rate of 65% contributed the most to the haze pollution in Jinan City, followed by the natural environment factors.