新冠疫情对我国NO<sub>2</sub>排放影响的时空分析

Abstract
Figure/Table
References
Related Citation (3)

Download: PDF (2434 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract Based on the high-resolution TROPOMI data, this paper analyzed the spatial distribution of NO₂ column density during the COVID-19 outbreaking period in China, and revealed the spatial variations in the NO₂ changes during the year-on-year and month-on-month COVID-19 pandemic. The analysis showed that during the pandemic, the nationwide decline in NO₂ column density compared to the NO₂ level during the same period in 2019 (year-on-year) and during one-month before (month-on-month) the pandemic reached 40.46% and 50.09%, respectively. The economically developed and populous urban agglomerations had a significant decrease in emissions. Specifically, provinces with high historical NO₂ emissions, including Jiangsu, Henan, Shandong, Zhejiang, etc., were more affected by the epidemic. Hubei showed the lowest NO₂ column density (1.63×10¹⁵molec/cm²) during the epidemic period among the central and eastern provinces, with the NO₂ decrease compared to the NO₂ level during the same period in 2019 and during one-month before the pandemic greater than 50%. Regarding different cities in Hubei, the influence of the COVID-19 pandemic on the surrounding cities, e.g. Wuhan and Xiaogan, was much greater than that on the western mountainous cities, e.g. Shiyan and Enshi. The measurements of NO₂ concentration at the ground-based national air quality monitoring stations also showed a consistent spatiotemporal trend with satellite observations, indicating that the "top-down" remote sensing method can efficiently reflects the intensity of air pollution emissions and the level of socio-economic activities in different regions.

Key words： NO₂ column density TROPOMI COVID-19 pandemic year-on-year month-on-month

Received: 25 May 2020

PACS:

X703.5

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	ZHAO Jin-huan
	CAI Kun
	LI Shen-shen
	ZHENG Feng-bin
	LIU Yang

Cite this article:

ZHAO Jin-huan,CAI Kun,LI Shen-shen等. Spatiotemporal analysis on the impact of COVID-19 pandemic on NO₂ emission in China[J]. CHINA ENVIRONMENTAL SCIENCECE, 2021, 41(1): 56-62.

URL:

http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2021/V41/I1/56

[1]	周春艳,厉青,王中挺,等.2005年~2014年京津冀对流层NO2柱浓度时空变化及影响因素[J]. 遥感学报, 2016,20(3):468-480. Zhou C Y, Li Q, Wang Z T, et al. Spatio-temporal trend and changing factors of tropospheric NO2 column density in Beijing-Tianjin-Hebei region from 2005 to 2014[J]. Journal of Remote Sensing, 2016,20(3):468-480.
[2]	马洪群,崔莲花.大气污染物(SO2、NO2)对中国居民健康效应影响的meta分析[J]. 职业与健康, 2016,32(8):1038-1044. Ma H Q, Cui L H. Meta-analysis on health effects of air pollutants (SO2 and NO2) in the Chinese population[J]. Occup and Health, 2016,32(8):1038-1044.
[3]	陈罕立,王金南.关于我国NOx排放总量控制的探讨[J]. 环境科学研究, 2005,18(5):107-110. Chen H L, Wang J N. Exploring the total emission control of nitrogen oxides in China[J]. Research of Environmental Sciences, 2005, 18(5):107-110.
[4]	Hilboll A, Richter A, Burrows J P. Long-term changes of tropospheric NO2 over megacities derived from multiple satellite instruments[J]. Atmospheric Chemistry and Physics, 2013,13(8):4145-4169.
[5]	Martin R V, Sioris C E, Chance K, et al. Evaluation of space-based constraints on global nitrogen oxide emissions with regional aircraft measurements over and downwind of eastern North America[J]. Journal of Geophysical Research-Atmospheres, 2006,111(D15).
[6]	Lamsal L N, Martin R V, van Donkelaar A, et al. Indirect validation of tropospheric nitrogen dioxide retrieved from the OMI satellite instrument:Insight into the seasonal variation of nitrogen oxides at northern midlatitudes[J]. Journal of Geophysical ResearchAtmospheres, 2010,115(D5).
[7]	Beirle S, Boersma K F, Platt U, et al. Megacity emissions and lifetimes of nitrogen oxides probed from space[J]. Science, 2011,333(6050):1737-1739.
[8]	Lu Z, Zhang Q, Streets D G. Sulfur dioxide and primary carbonaceous aerosol emissions in China and India, 1996~2010[J]. Atmospheric Chemistry and Physics, 2011,11(18):9839-9864.
[9]	Valin L C, Russell A R, Cohen R C. Chemical feedback effects on the spatial patterns of the NOx weekend effect:a sensitivity analysis[J]. Atmospheric Chemistry and Physics, 2014,14(1):1-9.
[10]	Dirksen R J, Boersma K F, Eskes H J, et al. Evaluation of stratospheric NO2 retrieved from the Ozone Monitoring Instrument:Intercomparison, diurnal cycle, and trending[J]. Journal of Geophysical ResearchAtmospheres, 2011,116(D8).
[11]	Lin J-T, McElroy M B. Detection from space of a reduction in anthropogenic emissions of nitrogen oxides during the Chinese economic downturn[J]. Atmospheric Chemistry and Physics, 2011, 11(15):8171-8188.
[12]	章吴婷,张秀英,赵丽敏.多源遥感的中国NO2浓度在时空上的对比[J]. 遥感信息, 2018,33(6):39-47. Zhang W T, Zhang X Y, Zhao L M. Comparison of NO2 columns from GOME, SCIAMACHY, GOME-2, and OMI in four seasons on different spatial scales in China[J]. Remote Sensing Information, 2018,33(6):39-47.
[13]	程韵初,吴莹.基于OMI资料的中国对流层NO2柱浓度时空变化及其影响因子分析[J]. 地球物理学进展, 2019:1-9. Cheng Y C, Wu Y. Spatiotemporal changes of tropospheric NO2 vertical column densities in China based on OMI data and its influencing factors[J]. Progress in Geophysics, 2019:1-9.
[14]	朱文东,周廷刚,李洪忠,等.基于OMI数据的成渝城市群对流层NO2浓度遥感监测[J]. 长江流域资源与环境, 2019,28(9):2239-2250. Zhu W D, Zhou Y G, Li H Z, et al. Remote sensing monitoring of tropospheric NO2 density in Chengdu-Chongqing urban agglomeration based on OMI data[J]. Resources and Environment in the Yangtze Basin, 2019,28(9):2239-2250.
[15]	Chu B, Zhang S, Liu J, et al. Significant concurrent decrease in PM2.5 and NO2concentrations in China during COVID-19epidemic[J]. Journal of Environmental Sciences, 2021,99:346-353.
[16]	Zhang R, Zhang Y, Lin H, et al. NOx Emission Reduction and Recovery during COVID-19 in East China[J]. Atmosphere, 2020,11(4):433.
[17]	Eskes H, van Geffen J, Boersma F, et al. Sentinel-5 precursor/TROPOMI Level 2 Product user manual nitrogendioxide[EB/OL]. https://sentinel.esa.int/documents/247904/2474726/Sentinel-5P-Level-2-Product-User-Manual-Nitrogen-Dioxide2019-03-27.