Abstract
COVID'19 pandemics has brought a tremendous change in the regular human life style due to the severity of the virus. In addition, a positive impact was observed in the ambient air quality due to complete absence of anthropogenic activities contributing to the air pollutants in the urban sprawl for a short duration because of the lockdown restrictions imposed by the government. In this study, we have discussed the trend of air quality with respect to pre-lockdown, lockdown, and post-lockdown. It was observed that on an average 50%-70% decrease in pollutant concentration measured during lockdown compared to pre-lockdown measurements. However, post-lockdown shown an increasing trend in concentration but are within the permissible limits due to the restrictions imposed in the post-lockdown. This short analysis presented in this paper highlights the effect of lockdown over air quality improvement observed in a densely populate metro city of Tamil Nadu.
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This article (and all articles in the proceedings volume relating to the same conference) has been retracted by IOP Publishing following an extensive investigation in line with the COPE guidelines. This investigation has uncovered evidence of systematic manipulation of the publication process and considerable citation manipulation.
IOP Publishing respectfully requests that readers consider all work within this volume potentially unreliable, as the volume has not been through a credible peer review process.
IOP Publishing regrets that our usual quality checks did not identify these issues before publication, and have since put additional measures in place to try to prevent these issues from reoccurring. IOP Publishing wishes to credit anonymous whistleblowers and the Problematic Paper Screener [1] for bringing some of the above issues to our attention, prompting us to investigate further.
[1] Cabanac G, Labbé C and Magazinov A 2021 arXiv:2107.06751v1
Retraction published: 23 February 2022