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논문 기본 정보

자료유형
학술저널
저자정보
Yifan Qian (Nanchong Ecological and Environmental Monitoring Central Station of Sichuan Province) Xu Yuan (Nanchong Ecological and Environmental Monitoring Central Station of Sichuan Province) Wen Dou (North Sichuan College of Preschool Teacher Education) Jian Hu (Nanchong Ecological and Environmental Monitoring Central Station of Sichuan Province) Jie Xia (Nanchong Ecological and Environmental Monitoring Central Station of Sichuan Province) Danyu Li (Nanchong Ecological and Environmental Monitoring Central Station of Sichuan Province) Qing Zheng (China West Normal University) Ping Zhang (China West Normal University) Qiumei Quan (China West Normal University) Yunxiang Li (China West Normal University)
저널정보
대한환경공학회 Environmental Engineering Research Environmental Engineering Research 제28권 제2호
발행연도
2023.4
수록면
79 - 95 (17page)

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초록· 키워드

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The sources and variation trend of ambient air pollutants, the duration of pollution process and the conditions for decontamination were analyzed in this essay based on the ambient air pollutants data, PM<SUB>2.5</SUB> source analysis data and meteorological factors in Nanchong City during 2014 to 2019. The results indicated that the concentrated discharge of fireworks on New Year’s Eve was the main reason for the sharp deterioration of the ambient air quality. PM<SUB>2.5</SUB> and PM<SUB>10</SUB> concentrations increased significantly after fireworks were set off, and the peak value appeared at about 02:00 on the Lunar New Year’s Day, but the value of PM<SUB>2.5</SUB>/PM<SUB>10</SUB> did not change significantly. The concentration of SO₂ in gaseous pollutants was slightly affected by fireworks, while NO₂, CO and O₃ were not affected basically. Having been affected by fireworks, the concentrations and percentages of K⁺, Cl⁻ and Mg<SUP>2+</SUP> of the water-solubility ions in PM<SUB>2.5</SUB> significantly increased at the 0.01 level. Meanwhile, the concentrations and percentages of the metal elements, including Cu, Pb, Mg, Al, K and Ba, significantly increased at the 0.05 level. Restricted to the topography and meteorological factors, the duration of the pollution was prolonged.

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ABSTRACT
1. Introduction
2. Study Area and Data Source
3. Results
4. Discussion
5. Conclusions
References

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