Analysis of ambient air quality in Xi'an during the thirteenth five-year plan period

Yufei Yan

doi:10.1117/12.2627578

22 April 2022 Analysis of ambient air quality in Xi'an during the thirteenth five-year plan period

Yufei Yan

Proceedings Volume 12163, International Conference on Statistics, Applied Mathematics, and Computing Science (CSAMCS 2021); 1216310 (2022) https://doi.org/10.1117/12.2627578
Event: International Conference on Statistics, Applied Mathematics, and Computing Science (CSAMCS 2021), 2021, Nanjing, China

Abstract

Based on the monitoring results of air pollutants in Xi'an from 2016 to 2020, based on the statistical analysis of its annual average concentration, monthly average concentration, Spearman's rank correlation coefficient, comprehensive index of ambient air quality and pollutant load factor in the past five years, the air quality of Xi'an was further understood. The results show that: (1) except for ozone, the annual average concentration of pollutants in Xi'an showed a downward trend, and the monthly average concentration showed a “U” shape except ozone. The concentration increased obviously in autumn and winter, the pollution was more serious, and the air quality improved obviously in spring and summer. (2) TSP is the main air pollutant in Xi'an for five years. Although the concentration of TSP is decreasing, it still needs to be improved. (3) According to the correlation analysis of various air pollutants, PM10 and PM2.5 show significant positive correlation, and PM2.5 and PM10 have high homology with SO₂, CO, NO₂.

Citation Download Citation

Yufei Yan "Analysis of ambient air quality in Xi'an during the thirteenth five-year plan period", Proc. SPIE 12163, International Conference on Statistics, Applied Mathematics, and Computing Science (CSAMCS 2021), 1216310 (22 April 2022); https://doi.org/10.1117/12.2627578

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