基于卫星遥感的中国人为CO<sub>2</sub>与大气污染物排放协同关系

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Abstract The synergistic effects between anthropogenic CO₂ and atmospheric pollutants emissions, and the change characteristics of the synergistic effects during the COVID-19 epidemic in China were investigated based on multi-source satellite remote sensing data and atmospheric transport model. Results showed that high anthropogenic CO₂ emissions corresponded to high concentrations of atmospheric NO₂ and CO emissions. The XCO₂ anomalies were more correlated with XNO₂ (r=0.79) during the non-growing season than with XCO (r=0.61) at the provincial level. In regions with high anthropogenic CO₂ emission, the combustion emission efficiency tended to be higher. The total area of regions with XO₂ anomalies, XNO₂, and XCO decreasing in February 2020 (epidemic control period) was 50%, 70%, and 49% of that in February 2019 (before the pandemic), respectively. The correlation between XCO₂ anomalies and XNO₂ (r=0.71, P<0.01) in February 2020 was higher than that in February 2019 (r=0.59, P<0.01), while the correlation between XCO₂ anomalies and XCO in February 2020 (r=0.44, P<0.01) was lower than that in February 2019 (r=0.68,P<0.01). Due to atmospheric transport effects, the impact of anthropogenic emissions in the southwest of Beijing-Tianjin- Hebei region was higher in February 2020 than that in February 2019, while the impact in northern Yangtze River Delta was reduced regarding to the long-distance transport, and the Pearl River Delta was the least. Our study demonstrates the reliability and effectiveness of satellite remote sensing in monitoring the spatial pattern and temporal variation of the synergistic effects between anthropogenic CO₂ and air pollutant synergistic emissions in disturbance of climate or human-induced events.

Key words： anthropogenic CO₂ emission atmospheric pollutants synergistic emissions COVID-19 satellite remote sensing

Received: 08 November 2023

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	WANG Zhen-shan
	LI Xin-mei
	XIAO Wei
	JIANG Ning-xuan
	LIU Yi-bo

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WANG Zhen-shan,LI Xin-mei,XIAO Wei等. Satellite remote sensing detect synergistic relationship between anthropogenic CO₂ and air pollutant emissions in China[J]. CHINA ENVIRONMENTAL SCIENCECE, 2024, 44(6): 3111-3121.

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http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2024/V44/I6/3111

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