Preprints
https://doi.org/10.5194/acp-2017-101
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/acp-2017-101
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
09 Mar 2017
Status: this preprint was under review for the journal ACP. A revision for further review has not been submitted.
NO2 pollution over India observed from space – the impact of rapid economic growth, and a recent decline
Abstract. The Indian economy has grown significantly during the past decades. Satellite-based remote sensing enables atmospheric pollution to be observed globally, in remote regions, and in regions where the infrastructure for air quality monitoring is limited. Here, we investigate the temporal evolution of tropospheric nitrogen dioxide (NO2) since the early 2000s, and correlate NO2 abundances with indicators of economic development, notably gross state domestic product and electricity generation capacity, for all 35 Indian states and union territories.
From 2003–2012, NO2 pollution and economic growth are strongly correlated, leading to annual increases of up to 4.4 %. This increase is strongest in states in East India having heavy industry. In 2012, the amount of tropospheric NO2 reached a maximum; since then, tropospheric NO2 pollution has stabilized or is even declining. While the Indian economy continues to grow, this decline in observed NO2 values may be a result of a slow-down in Indian economic growth, combined with the implementation of cleaner technology.
Additionally, we identify regional pollution sources such as individual steel smelters and the cement industry, which are severely degrading air quality. In Tamil Nadu, economic growth has not led to increasing NO2 columns, which we attribute to the investment in the development of renewable energy sources during the 2000s.
How to cite. Hilboll, A., Richter, A., and Burrows, J. P.: NO2 pollution over India observed from space – the impact of rapid economic growth, and a recent decline, Atmos. Chem. Phys. Discuss. [preprint], https://doi.org/10.5194/acp-2017-101, in review, 2017.
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Status: closed (peer review stopped)
Status: closed (peer review stopped)
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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RC1: 'review', Anonymous Referee #3, 05 Apr 2017
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AC1: 'Reply to Reviewer Comment 1 (Anon. Ref. #3)', Andreas Hilboll, 28 Sep 2017
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AC1: 'Reply to Reviewer Comment 1 (Anon. Ref. #3)', Andreas Hilboll, 28 Sep 2017
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RC2: 'Interactive comment on ‘NO2 pollution over India observed from space – the impact of rapid economic growth, and a recent decline’ by Andreas Hilboll et al.', Anonymous Referee #1, 07 Apr 2017
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AC2: 'Reply to Reviewer Comment 2 (Anon. Ref. #1)', Andreas Hilboll, 28 Sep 2017
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AC2: 'Reply to Reviewer Comment 2 (Anon. Ref. #1)', Andreas Hilboll, 28 Sep 2017
Status: closed (peer review stopped)
Status: closed (peer review stopped)
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
- Printer-friendly version
- Supplement
-
RC1: 'review', Anonymous Referee #3, 05 Apr 2017
-
AC1: 'Reply to Reviewer Comment 1 (Anon. Ref. #3)', Andreas Hilboll, 28 Sep 2017
-
AC1: 'Reply to Reviewer Comment 1 (Anon. Ref. #3)', Andreas Hilboll, 28 Sep 2017
-
RC2: 'Interactive comment on ‘NO2 pollution over India observed from space – the impact of rapid economic growth, and a recent decline’ by Andreas Hilboll et al.', Anonymous Referee #1, 07 Apr 2017
-
AC2: 'Reply to Reviewer Comment 2 (Anon. Ref. #1)', Andreas Hilboll, 28 Sep 2017
-
AC2: 'Reply to Reviewer Comment 2 (Anon. Ref. #1)', Andreas Hilboll, 28 Sep 2017
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- Nitrogen dioxide decline and rebound observed by GOME-2 and TROPOMI during COVID-19 pandemic S. Liu et al. 10.1007/s11869-021-01046-2
- Global fine-scale changes in ambient NO2 during COVID-19 lockdowns M. Cooper et al. 10.1038/s41586-021-04229-0
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Andreas Hilboll
Institute of Environmental Physics, University of Bremen, 28359 Bremen, Germany
MARUM – Center for Marine Environmental Sciences, University of Bremen, 28359 Bremen, Germany
Andreas Richter
Institute of Environmental Physics, University of Bremen, 28359 Bremen, Germany
John P. Burrows
Institute of Environmental Physics, University of Bremen, 28359 Bremen, Germany
Short summary
We investigate the temporal evolution of the important tropospheric air pollutant nitrogen dioxide (NO2) since the early 2000s, and correlate NO2 abundances with indicators of economic development. Until 2012, NO2 pollution and economic growth are strongly correlated, with annual increases of up to 4.4 %. Since then, tropospheric NO2 pollution has stabilized or is even declining, probably as a result of a slow-down in Indian economic growth combined with the implementation of cleaner technology.
We investigate the temporal evolution of the important tropospheric air pollutant nitrogen...
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