Lockdown effects on air quality in megacities during the first and second waves of COVID-19 pandemic (Record no. 20423)

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control field 20231222100242.0
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Original cataloging agency AIKTC-KRRC
Transcribing agency AIKTC-KRRC
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9 (RLIN) 22559
Author Giri, J. Aswin
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Title Lockdown effects on air quality in megacities during the first and second waves of COVID-19 pandemic
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Volume, Issue number Vol.104(1), Mar
260 ## - PUBLICATION, DISTRIBUTION, ETC.
Place of publication, distribution, etc. USA
Name of publisher, distributor, etc. Springer
Year 2023
300 ## - PHYSICAL DESCRIPTION
Pagination 155-165p.
520 ## - SUMMARY, ETC.
Summary, etc. Air pollution is among the highest contributors to mortality worldwide, especially in urban areas. During spring 2020, many countries enacted social distancing measures in order to slow down the ongoing COVID-19 pandemic. A particularly drastic measure, the “lockdown”, urged people to stay at home and thereby prevent new COVID-19 infections during the first (2020) and second wave (2021) of the pandemic. In turn, it also reduced traffic and industrial activities. But how much did these lockdown measures improve air quality in large cities, and are there differences in how air quality was affected? Here, we analyse data from two megacities: London as an example for Europe and Delhi as an example for Asia. We consider data during first and second-wave lockdowns and compare them to 2019 values. Overall, we find a reduction in almost all air pollutants with intriguing differences between the two cities except Delhi in 2021. In London, despite smaller average concentrations, we still observe high-pollutant states and an increased tendency towards extreme events (a higher kurtosis of the probability density during lockdown) during 2020 and low pollution levels during 2021. For Delhi, we observe a much stronger decrease in pollution concentrations, including high pollution states during 2020 and higher pollution levels in 2021. These results could help to design policies to improve long-term air quality in megacities.
650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM
9 (RLIN) 4642
Topical term or geographic name entry element Humanities and Applied Sciences
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9 (RLIN) 22560
Co-Author Schäfer, Benjamin
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Place, publisher, and date of publication Switzerland Springer
Title Journal of the institution of engineers (India): Series A
International Standard Serial Number 2250-2149
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URL https://link.springer.com/article/10.1007/s40030-022-00702-9
Link text Click here
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Source of classification or shelving scheme
Koha item type Articles Abstract Database
Holdings
Withdrawn status Lost status Source of classification or shelving scheme Damaged status Not for loan Permanent Location Current Location Shelving location Date acquired Barcode Date last seen Price effective from Koha item type
          School of Engineering & Technology School of Engineering & Technology Archieval Section 2023-12-22 2023-1764 2023-12-22 2023-12-22 Articles Abstract Database
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