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Evolution of China's NO x emission control strategy during 2005∼2020 over coal-fired power plants: A satellite-based assessment.
- Source :
-
Journal of environmental management [J Environ Manage] 2023 Dec 15; Vol. 348, pp. 119243. Date of Electronic Publication: 2023 Oct 10. - Publication Year :
- 2023
-
Abstract
- Since especially the 12th Five-Year Plan (2011-2015), China has made great efforts to reverse the increasing trend of NO <subscript>x</subscript> emissions through end-of-pipe measures. With the Ozone Monitoring Instrument (OMI) level 2 swath product of tropospheric NO <subscript>2,</subscript> this study explores the temporal-spatial patterns of NO <subscript>x</subscript> concentrations over China's coal-fired power plants from 2005 to 2020 and investigates the evolution of its control strategy. The nationwide deployment of flue-gas denitration facilities was a critical measure to mitigate NO <subscript>x</subscript> emissions from coal-fired power plants, while this study externally assesses the implementation gap of their operation. Our results illustrate that, besides the impacts of economic cycles, China's control strategy experienced a dramatic transformation from an ad hoc campaign style for meeting short-term temporary targets to more sustainable, technology- and governance-centered institutional arrangements for ensuring long-term fundamental solutions. Furthermore, the satellite-based assessment may provide not only ex post evaluation, but also in-time and independent data for more effective and efficient environmental compliance monitoring.<br />Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.<br /> (Copyright © 2023 Elsevier Ltd. All rights reserved.)
Details
- Language :
- English
- ISSN :
- 1095-8630
- Volume :
- 348
- Database :
- MEDLINE
- Journal :
- Journal of environmental management
- Publication Type :
- Academic Journal
- Accession number :
- 37827080
- Full Text :
- https://doi.org/10.1016/j.jenvman.2023.119243