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Assessment of Air Pollution Aggravation during Straw Burning in Hubei, Central China

Author

Listed:
  • Bo Zhu

    (Hubei Environmental Monitoring Centre, Wuhan 430079, China)

  • Yu Zhang

    (School of Remote Sensing and Information Engineering, Wuhan University, Wuhan 430079, China)

  • Nan Chen

    (Hubei Environmental Monitoring Centre, Wuhan 430079, China)

  • Jihong Quan

    (Hubei Environmental Monitoring Centre, Wuhan 430079, China)

Abstract

Crop straw burning frequently occurs in Central China, where agriculture is highly productive. We carried out a two-month observation on straw burning in Hubei Province from September 1 to October 31, 2015 to track the variations of air pollutants and comprehensively quantify their influence on regional air quality. Results showed that the concentration of suspended particles (particles smaller than 2.5 or 10 µm, i.e., PM 2.5 /PM 10 ) and gas pollutants including ozone (O 3 ), sulfur dioxide (SO 2 ), nitrogen dioxide (NO 2 ), and carbon monoxide (CO) was significantly enhanced with the increasing number of fire spots. The average daily concentrations of PM 10 , PM 2.5 and O 3 during the intensive burning period (from October 12 to 25) exceeded the daily limits published by the World Health Organization (WHO) by 101.8, 72.7 and 59.1 μg/m 3 , respectively. In the hourly distribution of pollutant concentration, PM 10, PM 2.5 , O 3 , SO 2 , NO 2 and CO were 63.49%, 46.29%, 65.56%, 64.40%, 48.57% and 13.49% higher during burning periods than during non-burning periods. Statistical results based on the air quality index (AQI) indicated that biomass burning was the key factor for the deterioration of local air quality, with a contribution ratio exceeding 41%. Additionally, the pollutants were more spatially homogeneous during the burning period than during the non-burning period. Straw burning not only worsened the local air quality but also raised the pollution level of surrounding regions due to the transport of air mass.

Suggested Citation

  • Bo Zhu & Yu Zhang & Nan Chen & Jihong Quan, 2019. "Assessment of Air Pollution Aggravation during Straw Burning in Hubei, Central China," IJERPH, MDPI, vol. 16(8), pages 1-14, April.
    • Handle: RePEc:gam:jijerp:v:16:y:2019:i:8:p:1446-:d:225403
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    References listed on IDEAS

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    1. Wei Wang & Wei Gong & Feiyue Mao & Zengxin Pan & Boming Liu, 2016. "Measurement and Study of Lidar Ratio by Using a Raman Lidar in Central China," IJERPH, MDPI, vol. 13(5), pages 1-13, May.
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    Cited by:

    1. Jinhua Xie & Gangqiao Yang & Ge Wang & Yaying Zhu & Zhaoxia Guo, 2023. "Substitutes or complements? Exploring the impact of environmental regulations and informal institutions on the clean energy utilization behaviors of farmers," Environment, Development and Sustainability: A Multidisciplinary Approach to the Theory and Practice of Sustainable Development, Springer, vol. 25(5), pages 3893-3922, May.
    2. Yi Zhang & Jie Song & Bo Zhu & Jiangping Chen & Mingjie Duan, 2023. "Anthropogenic Drivers of Hourly Air Pollutant Change in an Urban Environment during 2019–2021—A Case Study in Wuhan," Sustainability, MDPI, vol. 15(24), pages 1-16, December.
    3. Lining Zhu & Yu Zhang & Zheng Wu & Chengcheng Zhang, 2021. "Spatio-Temporal Characteristics of SO 2 across Weifang from 2008 to 2020," IJERPH, MDPI, vol. 18(22), pages 1-17, November.

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