Evidence map›Paper›PMID 33608603›Full record

SynthesisScientific reports2021

Positive effects of COVID-19 lockdown on air quality of industrial cities (Ankleshwar and Vapi) of Western India.

Ritwik Nigam, Kanvi Pandya, Alvarinho J Luis, Raja Sengupta, Mahender Kotha

Abstract readMeta-Analysis
In one paragraph

Synthesis in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

32 citing papers in PubMed.

  1. Article
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  5. Aerosol demasking enhances climate warming over South Asia.NPJ climate and atmospheric science · 2023
    Article
  6. Article
  7. Article
  8. Article
  9. The Long-Term Impact of COVID-19 Lockdowns in Istanbul.International journal of environmental research and public health · 2022
    Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. The Atmospheric Environment Effects of the COVID-19 Pandemic: A Metrological Study.International journal of environmental research and public health · 2022
    Review
  15. Article
  16. Decade-low aerosol levels over the Bohai and Yellow Seas amid the COVID-19 lockdown.International journal of applied earth observation and geoinformation : ITC journal · 2022
    Article
  17. Article
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Ritwik NigamSchool of Earth, Ocean and Atmospheric Sciences (SEOAS), Goa University, Taleigao Plateau, Goa, 403206, India.
Kanvi PandyaDepartment of Geography, Faculty of Science, The Maharaja Sayajirao University of Baroda, Fatehgunj, Vadodara, 390002, India.
Alvarinho J LuisEarth System Science Organization-National Centre of Polar and Ocean Research, Ministry of Earth Science, Govt. of India, Headland Sada, Goa, 403804, India.
Raja SenguptaDepartment of Geography & McGill School of Environment, McGill University, Montreal, QC, H3A0B9, Canada.
Mahender KothaSchool of Earth, Ocean and Atmospheric Sciences (SEOAS), Goa University, Taleigao Plateau, Goa, 403206, India. mkotha@unigoa.ac.in.

Funding

University Grants Commission Research Fellowship
6 · The paper itself

Abstract

On January 30, 2020, India recorded its first COVID-19 positive case in Kerala, which was followed by a nationwide lockdown extended in four different phases from 25th March to 31st May, 2020, and an unlock period thereafter. The lockdown has led to colossal economic loss to India; however, it has come as a respite to the environment. Utilizing the air quality index (AQI) data recorded during this adverse time, the present study is undertaken to assess the impact of lockdown on the air quality of Ankleshwar and Vapi, Gujarat, India. The AQI data obtained from the Central Pollution Control Board was assessed for four lockdown phases. We compared air quality data for the unlock phase with a coinciding period in 2019 to determine the changes in pollutant concentrations during the lockdown, analyzing daily AQI data for six pollutants (PM

Indexed as

Air PollutantsAir PollutionCitiesCommunicable Disease ControlCOVID-19Environmental MonitoringHumansIndiaIndustryParticulate MatterAir PollutantsParticulate Matter

Identifiers

PMID33608603
PMCPMC7895933

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.