Integrated satellite observations unravel the relationship between urbanization and anthropogenic non-methane volatile organic compound emissions globally

Pu，Dongchuan1,2; Zhu，Lei2,3,4; Shen，Huizhong2,3,4; Smedt，Isabelle De5; Ye，Jianhuai2,3,4; Li，Juan1,2; Shu，Lei2,6; Wang，Dakang2,7; Li，Xicheng2; Zuo，Xiaoxing2; Yang，Xin2,3,4; Fu，Tzung May2,3,4

2024-12-01

10.1038/s41612-024-00683-5

npj Climate and Atmospheric Science   影响因子和分区

2397-3722

As urban areas expand globally, human activities are leading to a sustained increase in non-methane volatile organic compound (NMVOC) emissions, escalating both environmental and health-related concerns. Given their diverse origins, estimating anthropogenic NMVOC emissions levels from global urban areas remains challenging. Here, we integrate TROPOspheric Monitoring Instrument (TROPOMI) formaldehyde (HCHO) column data, Visible Infrared Imaging Radiometer Suite (VIIRS) nighttime light (NTL) radiance data, and the Emission Database for Global Atmospheric Research (EDGAR) to develop a method for estimating global anthropogenic NMVOC emissions. Furthermore, we construct a linear model to analyze the relationship between urbanization and anthropogenic NMVOC emissions. Our research reveals that meticulously filtered TROPOMI HCHO columns have a high Pearson correlation coefficient (r = 0.91) with anthropogenic NMVOC emissions, indicating its reliability as an indicator reflecting the levels of anthropogenic NMVOC emissions. We establish linear models at various scales, including global, continental, and national, linking HCHO columns (as indicators of anthropogenic NMVOC emissions) and NTL radiance (as an indicator of urbanization). The global-scale linear model exhibits an r of 0.81, with a slope of 0.42 × 10 molec. cm nanoWatts cm sr and an intercept of 9.26 × 10 molec. cm. This linear model reflects a positive correlation between urbanization and anthropogenic NMVOC emissions, also serving as a tool for estimating the levels of anthropogenic NMVOC emissions in urban areas. This study offers valuable insights for real-time monitoring of extensive anthropogenic NMVOC emissions.

SCI

英语

通讯

2-s2.0-85195646911

Scopus

1.School of Environment,Harbin Institute of Technology,Harbin,China
2.School of Environmental Science and Engineering,Southern University of Science and Technology,Shenzhen,Guangdong,China
3.Guangdong Provincial Observation and Research Station for Coastal Atmosphere and Climate of the Greater Bay Area,Shenzhen,Guangdong,China
4.Shenzhen Key Laboratory of Precision Measurement and Early Warning Technology for Urban Environmental Health Risks,School of Environmental Science and Engineering,Southern University of Science and Technology,Shenzhen,Guangdong,China
5.Royal Belgian Institute for Space Aeronomy (BIRA-IASB),Uccle,Ringlaan 3,1180,Belgium
6.School of Geographical Sciences,Fujian Normal University,Fuzhou,Fujian,China
7.School of Geography and Remote Sensing,Guangzhou University,Guangzhou,Guangdong,China

Pu，Dongchuan,Zhu，Lei,Shen，Huizhong,et al. Integrated satellite observations unravel the relationship between urbanization and anthropogenic non-methane volatile organic compound emissions globally[J]. npj Climate and Atmospheric Science,2024,7(1).

Pu，Dongchuan.,Zhu，Lei.,Shen，Huizhong.,Smedt，Isabelle De.,Ye，Jianhuai.,...&Fu，Tzung May.(2024).Integrated satellite observations unravel the relationship between urbanization and anthropogenic non-methane volatile organic compound emissions globally.npj Climate and Atmospheric Science,7(1).

Pu，Dongchuan,et al."Integrated satellite observations unravel the relationship between urbanization and anthropogenic non-methane volatile organic compound emissions globally".npj Climate and Atmospheric Science 7.1(2024).