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Updated: May 22, 2026

Automated, High-resolution Mobile Collection System for the Nitrogen Isotopic Analysis of NOx
Published on: December 20, 2016
Divergent decoupling pathways for economic growth and NO2 emissions in China revealed by satellite observations
Jianbin Gu1, Ziwei Chai2, Ruimin Deng2
1State Key Laboratory of Remote Sensing and Digital Earth, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100101, China.
Abstract:
China's "dual carbon" goals require effective strategies to decouple growth from nitrogen dioxide (NO2) emissions, especially in transport and industry. Using TROPOspheric Monitoring Instrument (TROPOMI) satellite data (2019-2022) and high-frequency economic indicators, we employ a cascaded framework integrating Seasonal-Trend decomposition (STL), Granger causality, and cross-correlation functions (CCFs) to quantify sector-specific contributions. Our analysis reveals divergent pathways: (1) Passenger transport shows reduced short-term emission intensity (strong negative correlation, no Granger causality), aligning with rapid electrification under the 14th Five-Year Plan. (2) Freight transport maintains a strong positive linkage, highlighting a persistent diesel dependence bottleneck. (3) Industrial activity exhibits a moderating linkage, with 2022 NO2 concentrations stably below pre-pandemic levels despite full output recovery. These findings prioritize freight electrification, passenger-sector consolidation, and industrial transformation. The integrated framework provides a transferable paradigm for policy assessment in developing economies pursuing sustainable growth.
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