职业与健康 ›› 2025, Vol. 41 ›› Issue (19): 2685-2690.

• 论著 • 上一篇    下一篇

2016—2023年甘肃省大气污染物时空变化特征

李梦1, 梁颖1, 张世显2, 曹可1   

  1. 1.新疆第二医学院公共卫生学院,新疆 克拉玛依 834000;
    2.克拉玛依市疾病预防控制中心,克拉玛依市卫生监督所公共卫生监督科,新疆 克拉玛依 834000
  • 收稿日期:2024-12-02 修回日期:2025-01-20 出版日期:2025-10-01 发布日期:2025-12-13
  • 通信作者: 曹可,讲师,E-mail:caokexey@163.com
  • 作者简介:李梦,女,在读本科生。
  • 基金资助:
    2023年国家级大学生创新创业训练计划项目(2023 13560008); 2022年新疆维吾尔自治区高校科研计划项目(XJEDU2022P146)

Spatial and temporal distribution characteristics of air pollutants in Gansu Province from 2016 to 2023

LI Meng1, LIANG Ying1, ZHANG Shixian2, CAO Ke1   

  1. 1. School of Public Health,Xinjiang Second Medical College,Karamay,Xinjiang 834000,China;
    2. Department of Public Health Supervision,Karamay Center for Disease Control and Prevention(Karamay Health Supervision Institute),Karamay,Xinjiang 834000, China
  • Received:2024-12-02 Revised:2025-01-20 Online:2025-10-01 Published:2025-12-13
  • Contact: CAO Ke,Lecturer,E-mail:caokexey@163.com

摘要: 目的 探讨2016—2023年甘肃省可吸入颗粒物(inhalable particle,PM10)、细颗粒物(fine particle,PM2.5)、SO2、NO2、CO和O3的时空变化特征,从而为该地区的大气污染防治工作提供有力的支持和科学依据。方法 基于2016—2023年甘肃省国家环境监测总站监测站点数据,分析6种主要污染物的时间变化特征、空间变化特征以及相关性。结果 不同污染物浓度分布具有空间差异性,PM10、PM2.5、O3浓度河西高于河东,而SO2、NO2和CO浓度则相反。2016—2023年甘肃省PM10、PM2.5、SO2、NO2和CO年际变化呈下降趋势,降幅分别为3.27%、16.36%、48.14%、19.75%和41.57%,O3年际变化呈上升趋势,升幅为7.97%。PM10、PM2.5、SO2、NO2和CO月均浓度呈“U”型分布,秋冬高、春夏低,O3月变化呈倒“U”型,夏高冬低。PM10、PM2.5、SO2、NO2和CO日变化呈现“双峰双谷”分布,O3日变化最高浓度出现在16:00,最低浓度出现在08:00。结论 除O3外,2016—2023年甘肃省大气污染物浓度整体有向好趋势,今后甘肃省应重点关注O3污染,并继续强化空气污染防治措施,以持续优化与改善空气质量。

关键词: 大气污染, 甘肃省, 时间变化, 空间变化

Abstract: Objective To explore the spatial and temporal distribution characteristics of inhalable particle(PM10),fine particle(PM2.5),NO2,SO2,CO and O3 in Gansu Province from 2016 to 2023,in order to provide strong support and scientific basis for the prevention and control of atmospheric pollution in Gansu Province. Methods Based on data from National Environmental Monitoring Sites in Gansu Province from 2016 to 2023,the spatial and temporal variation characteristics and correlation of 6 major pollutants were analyzed. Results The distribution of different pollutant concentrations showed spatial differences,and the concentrations of PM10,PM2.5 and O3 were higher in Hexi than in Hedong,while the concentrations of SO2,NO2 and CO were the opposite. The average annual concentrations of PM10,PM2.5,SO2,NO2 and CO in Gansu Province from 2016 to 2023 showed a downward trend,with declines of 3.27%,16.36%,48.14%,19.75% and 41.57%,respectively. In contrast,the average annual concentration of O3 increased by 7.97%. The monthly average concentrations of PM10,PM2.5,SO2,NO2 and CO were in the form of “U”,with higher concentrations in autumn and winter and lower concentrations in spring and summer. The monthly average concentration of O3 presented an inverted “U” distribution,with higher concentrations in summer than in winter. The daily concentrations of PM10,PM2.5,SO2,NO2 and CO presented double peaks and double valleys distribution,with the highest concentration of O3 occurring at 16:00 and the lowest concentration occurring at 08:00. Conclusion Except O3,the overall concentration of air pollution in Gansu Province has shown a positive trend from 2016 to 2023. In the future,Gansu Province should focus on O3 pollution and continue to strengthen air pollution prevention and control measures to continuously optimize and improve air quality.

Key words: Air pollution, Gansu Province, Temporal variation, Spatial variation

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