Influence of Straw Burning on Urban Air Pollutant Concentrations in Northeast China

Zhenzhen Wang, Jianjun Zhao, Jiawen Xu, Mingrui Jia, Han Li and Shijun Wang
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Zhenzhen Wang: School of Geographical Sciences, Northeast Normal University, Changchun 130024, China
Jianjun Zhao: School of Geographical Sciences, Northeast Normal University, Changchun 130024, China
Jiawen Xu: School of Geographical Sciences, Northeast Normal University, Changchun 130024, China
Mingrui Jia: School of Geographical Sciences, Northeast Normal University, Changchun 130024, China
Han Li: School of Geographical Sciences, Northeast Normal University, Changchun 130024, China
Shijun Wang: School of Geographical Sciences, Northeast Normal University, Changchun 130024, China

IJERPH, 2019, vol. 16, issue 8, 1-21

Abstract: Northeast China is China’s primary grain production base. A large amount of crop straw is incinerated every spring and autumn, which greatly impacts air quality. To study the degree of influence of straw burning on urban pollutant concentrations, this study used The Moderate-Resolution Imaging Spectroradiometer/Terra Thermal Anomalies & Fire Daily L3 Global 1 km V006 (MOD14A1) and The Moderate-Resolution Imaging Spectroradiometer/Aqua Thermal Anomalies and Fire Daily L3 Global 1 km V006 (MYD14A1) data from 2015 to 2017 to extract fire spot data on arable land burning and to study the spatial distribution characteristics of straw burning on urban pollutant concentrations, temporal variation characteristics and impact thresholds. The results show that straw burning in Northeast China is concentrated in spring and autumn; the seasonal spatial distributions of PM 2.5 , PM 10 andAir Quality Index (AQI) in 41 cities or regions in Northeast China correspond to the seasonal variation of fire spots; and pollutants appear in the peak periods of fire spots. In areas where the concentration coefficient of rice or corn is greater than 1, the number of fire spots has a strong correlation with the urban pollution index. The correlation coefficient R between the number of burned fire spots and the pollutant concentration has a certain relationship with the urban distribution. Cities are aggregated in geospatial space with different R values.

Keywords: pollutant concentration; straw burning; fire spots; PM 2.5; PM 10; AQI (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2019
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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