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. 2020 Oct 6;10:16574. doi: 10.1038/s41598-020-72271-5

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© This is a U.S. Government work and not under copyright protection in the US; foreign copyright protection may apply 2020

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Spatial variations in mean tropospheric NO₂ during 2019 (March 25th–May 3rd) non lock down versus 2020 (March 25th–May 3rd) COVID lock down period, India (QGIS software (3.10) QGIS.org (2020) was used, accessible from https://qgis.org/).