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논문 기본 정보

자료유형
학술저널
저자정보
Xiong Lei (Sichuan Nanchong Ecological Environment Monitoring Center) Qing Zheng (China West Normal University) Yifan Qian (Sichuan Nanchong Ecological Environment Monitoring Center) Jian Hu (Sichuan Nanchong Ecological Environment Monitoring Center) Danyu Li (Sichuan Nanchong Ecological Environment Monitoring Center) Ping Zhang (China West Normal University) Xu Yuan (China West Normal University) Qiumei Quan (China West Normal University) Yunxiang Li (China West Normal University)
저널정보
대한환경공학회 Environmental Engineering Research Environmental Engineering Research 제27권 제3호
발행연도
2022.6
수록면
98 - 109 (12page)

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초록· 키워드

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This study evaluates the air quality in Nanchong City in 2015–2018 based on automatic monitoring data and meteorological data in the main urban area. Results show that overall air quality in the main urban area of Nanchong was standard and improved from 2015 to 2018. SO₂, NO₂, and CO had slight influences on air quality in the study area, whereas excessive annual average PM<SUB>2.5</SUB> and increasing O₃ concentration challenged the air quality. The monthly average mass concentrations of particulate matters (PM<SUB>2.5</SUB> and PM<SUB>10</SUB><SUB></SUB>), NO₂, and CO generally presented a “U-shaped” distribution pattern while O₃ showed the opposite. The diurnal variation of PM, NO₂, and CO has two peaks related to the morning and evening rush hours. Vehicle exhaust is the main source of local pollution. Over-standard PM<SUB>2.5</SUB> can significantly inhibit O₃ production while O₃ can easily promote the secondary generation of PM<SUB>2.5</SUB> due to its strong oxidization. PM<SUB>2.5</SUB> emission should be controlled strictly in winter, while in summer, the sources of O₃ should be controlled vigorously. Air pollution is comprehensive and complicated and is influenced by various factors, mainly meteorological and human factors. Measures such as artificial rainfall should be included at the appropriate time to cope with adverse meteorological conditions when heavy pollution occurs in winter.

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

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