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Transport Channels of Air Pollutants Affecting the Southern Sichuan Basin Based on Gridded Dispersion Simulation

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  • Yinpeng Mo

    (Department of Environmental Science and Engineering, Sichuan University, Chengdu 610065, China
    College of Carbon Neutrality Future Technology, Sichuan University, Chengdu 610065, China)

  • Guangming Shi

    (College of Carbon Neutrality Future Technology, Sichuan University, Chengdu 610065, China
    National Engineering Research Center on Flue Gas Desulfurization, Chengdu 610065, China)

  • Xia Jiang

    (Yibin Eco-environment Monitoring Station, Yibin 644002, China)

  • Tianzhi Luo

    (Yibin Eco-environment Monitoring Station, Yibin 644002, China)

  • Shuhua Zhou

    (Yibin Eco-environment Monitoring Station, Yibin 644002, China)

  • Fumo Yang

    (College of Carbon Neutrality Future Technology, Sichuan University, Chengdu 610065, China
    National Engineering Research Center on Flue Gas Desulfurization, Chengdu 610065, China)

Abstract

Air pollutants suspended in the atmosphere have a large impact on air quality, climate, and human health. As one of the important populated and industrialized regions in China, the Sichuan Basin (SCB) has confronted severe air pollution in recent years. Previous studies have shown that regional transport played a significant role in the formation of regional pollution in the SCB, particularly in the southern basin. Using Yibin and Zigong as representative receptor cities, we further identified the transport channels affecting the southern basin by conducting gridded dispersion simulations. A total of seven channels were identified, including three for cyclonic transport, three through the mountainous areas between the Longquan Mountain and the Huaying Mountain, and one along the Yangtze River. Varying seasonal distributions of their occurrence frequencies were observed. Furthermore, observational evidence for several universal channels was presented during a typical transport case. The transport pathways identified in this study can guide the planning of regional distribution of emission sources and the measures for regional joint prevention and control of air pollution.

Suggested Citation

  • Yinpeng Mo & Guangming Shi & Xia Jiang & Tianzhi Luo & Shuhua Zhou & Fumo Yang, 2023. "Transport Channels of Air Pollutants Affecting the Southern Sichuan Basin Based on Gridded Dispersion Simulation," IJERPH, MDPI, vol. 20(7), pages 1-16, April.
    • Handle: RePEc:gam:jijerp:v:20:y:2023:i:7:p:5396-:d:1116073
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    References listed on IDEAS

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    1. Junnan Xiong & Chongchong Ye & Tiancai Zhou & Weiming Cheng, 2019. "Health Risk and Resilience Assessment with Respect to the Main Air Pollutants in Sichuan," IJERPH, MDPI, vol. 16(15), pages 1-19, August.
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