Volume 8 Issue 4
Jul.  2018
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Article Navigation >  Journal of Environmental Engineering Technology  > 2018  >  8(4): 367-372
SHEN Kaijuan, GAO Guangkuo. Study on the relationship between PM2.5 and other air pollutants in Tianjin based on VAR model[J]. Journal of Environmental Engineering Technology, 2018, 8(4): 367-372. doi: 10.3969/j.issn.1674-991X.2018.04.048
Citation: SHEN Kaijuan, GAO Guangkuo. Study on the relationship between PM2.5 and other air pollutants in Tianjin based on VAR model[J]. Journal of Environmental Engineering Technology, 2018, 8(4): 367-372. doi: 10.3969/j.issn.1674-991X.2018.04.048
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Study on the relationship between PM2.5 and other air pollutants in Tianjin based on VAR model

doi: 10.3969/j.issn.1674-991X.2018.04.048

  • Business School, University of Shanghai for Science and Technology, Shanghai 200093, China

  • Received Date: 2018-03-04
  • Publish Date: 2018-07-20
    Abstract
  • In recent years, severe haze weathers have hit many areas of China, which has greatly affected people’s health and life. In the study on the haze problem, the relationship between PM2.5 and other air pollutants has become the focus of academic researches. Therefore, based on the vector autoregressive model and in combination with unit root test, AR eigenvalue test, generalized impulse response function and variance decomposition method, the air quality related data including PM2.5 in Tianjin from January 1, 2014 to December 31, 2016 were analyzed. Also the dynamic relationship between PM2.5 and its influencing factors was analyzed and the impact of other atmospheric pollutants on PM2.5 studied. The result shows the model of air quality system formed by PM2.5 and other air pollutants is stable. The increase of SO2, NO2 and CO concentration will cause the increase of PM2.5 concentration in a short time; the effect of SO2 and NO2 on PM2.5 is more significant; the increase of O3 concentration has an inhibitory effect on PM2.5. Therefore, suggestions on adjusting the industrial structure and strengthening the governance of SO2 were put forward as the primary solutions for the government of Tianjin to manage haze pollution.

     

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