Abstract
With the continuous promotion of urban industrialization, urban air pollution problem is more and more serious. Therefore, carrying out real-time environmental testing and analysing the meteorological data have become particularly important for grasping the changes in the urban environment and solving the air pollution problem. This article uses R language to analyse the air quality data of Beijing and Nanjing in 2017 respectively. Compare and explore the reasons for the change in air quality and the differences in air quality between the two cities. The text is divided into four parts: Introduction - Research Status – The Data Acquisition and Analysis - Cause Analysis - Research Conclusions.
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