JOURNAL OF NATURAL RESOURCES ›› 2021, Vol. 36 ›› Issue (2): 411-419.doi: 10.31497/zrzyxb.20210211

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Spatio-temporal variation characteristics of air pollution and influencing factors in Hebei province

HE Zhen-fang1,2(), GUO Qing-chun1,3(), LIU Jia-zhen1, ZHANG Ying-ying1, LIU Jie1, DING Hang1   

  1. 1. School of Environment and Planning, Liaocheng University, Liaocheng 252000, Shandong, China
    2. State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, CAS, Beijing 100085, China
    3. State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, CAS, Xi'an 710061, China
  • Received:2019-09-12 Revised:2020-05-09 Online:2021-02-28 Published:2021-04-28
  • Contact: GUO Qing-chun E-mail:hezhenfang@lcu.edu.cn;guoqingchun@lcu.edu.cn

Abstract:

Hebei is the most polluted province in China. It is significant to study the spatio-temporal variation of air pollution and its influencing factors. Based on the daily air quality index (AQI), meteorological data and socio-economic data, the spatial and temporal variation characteristics of air quality index and its relationship with influencing factors in Hebei province were examined by statistical analysis and spatial interpolation. The results show that air pollution mainly occurs in the central and southern parts of the province, especially in Handan, Xingtai and Shijiazhuang, but rarely in the north. The air quality index of the province shows a decreasing trend year by year, with a linear trend of -8.845/year, and it has a good negative correlation with wind speed, temperature, precipitation, gross domestic product (GDP), population, electricity consumption and secondary industry, while it has a positive correlation with sulfur dioxide emissions and nitrogen oxide emissions. Adverse climatic conditions are the inducement of atmospheric pollution, and high emission intensity is the main cause of heavy atmospheric pollution. With the rapid economic development and the increase of money invested in full control of air pollution in Hebei, its economy and pollution are on the right side of the EKC curve of environmental Kuznets. The relationship between air quality and economic development in Hebei has passed the "inflection point" of the environmental Kuznets curve. These results can provide theoretical basis for air pollution control in this province.

Key words: air pollution, Hebei province, air quality index, temperature, precipitation, socio-economy