A modeling of impact of key industrial sources on winter air quality in Pengzhou City

JIN Siyu; YANG Na; WEN Shouchang; LIU Hui; WANG Jihong; Xu He; SHI Jiacheng; LÜ Fan; HU Hua; ZHAO Qing

doi:10.13205/j.hjgc.202511012

Volume 43 Issue 11

Nov. 2025

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2025 > 43(11): 105-114

JIN Siyu, YANG Na, WEN Shouchang, LIU Hui, WANG Jihong, Xu He, SHI Jiacheng, LÜ Fan, HU Hua, ZHAO Qing. A modeling of impact of key industrial sources on winter air quality in Pengzhou City[J]. ENVIRONMENTAL ENGINEERING , 2025, 43(11): 105-114. doi: 10.13205/j.hjgc.202511012

Citation:

JIN Siyu, YANG Na, WEN Shouchang, LIU Hui, WANG Jihong, Xu He, SHI Jiacheng, LÜ Fan, HU Hua, ZHAO Qing. A modeling of impact of key industrial sources on winter air quality in Pengzhou City[J]. ENVIRONMENTAL ENGINEERING , 2025, 43(11): 105-114. doi: 10.13205/j.hjgc.202511012

Citation:

JIN Siyu, YANG Na, WEN Shouchang, LIU Hui, WANG Jihong, Xu He, SHI Jiacheng, LÜ Fan, HU Hua, ZHAO Qing. A modeling of impact of key industrial sources on winter air quality in Pengzhou City[J]. ENVIRONMENTAL ENGINEERING , 2025, 43(11): 105-114. doi: 10.13205/j.hjgc.202511012

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A modeling of impact of key industrial sources on winter air quality in Pengzhou City

doi: 10.13205/j.hjgc.202511012

1. Tsing-Huan Smart Source Technology Co. Ltd., Beijing 100084, China;
2. Pengzhou Ecological Environment Bureau, Chengdu 610000, China;
3. School of Environment, Tsinghua University, Beijing 100084, China

Received Date: 2024-02-18
Accepted Date: 2024-04-30
Rev Recd Date: 2024-04-12

Available Online: 2026-01-09

Abstract

Abstract

As the key area of Chengdu's industrial planning and industrial layout， Pengzhou is not only the key area of Chengdu's industrial source emissions， one of the main transmission channels of air pollutants， but also the upstream area of pollution sources' cross-border transportation and cold air activities. This study utilized the WRF-CALPUFF air quality model， in conjunction with environmental air quality monitoring data from Pengzhou， meteorological observations， as well as an industrial emission inventory， to simulate and analyze the contributions of key industrial sources to ambient PM_2.5 concentrations and their impacts on environmental air quality during the winter of 2022 （from December 2022 to February 2023）. The results indicated that the cement and metal products industries were major contributors to PM_2.5 in Pengzhou during winter， with an average contribution of 1.96 μg/m³ to the PM_2.5 concentration， accounting for over 70% of total industrial sources. During polluted weather conditions， the impact of these industries on air quality was even more significant， reaching approximately 80% of the total influence. Comparative analysis of two typical pollution episodes from January to February 2023 revealed that the contributions of key industrial sources to PM_2.5 concentrations were closely related to local wind field characteristics， particularly under the influence of northerly and north-easterly winds， where pollutants accumulation was more pronounced. In the winter of 2022， the top 20 companies in terms of PM_2.5 contributions in Pengzhou had an average contribution of 2.26 μg/m³， which was more pronounced during polluted weather， reaching 3.34 μg/m³ and accounting for about 87% of the total contributions from all key enterprises. Therefore， by simulating the pollution impact of enterprises， this study highlights the importance of managing key industries， providing a scientific basis for environmental protection departments to formulate off-peak production and emergency emission reduction measures for key industries during autumn and winter， and supporting the continuous improvement of air quality.
- WRF-CALPUFF model,
- emission inventory,
- industrial sources,
- PM_2.5

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References(30)

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