Evidence map›Paper›PMID 34162552›Full record

ArticleScience advances2021

Effects of COVID-19 lockdowns on fine particulate matter concentrations.

Melanie S Hammer, Aaron van Donkelaar, Randall V Martin, Erin E McDuffie, Alexei Lyapustin, Andrew M Sayer, N Christina Hsu, Robert C Levy, Michael J Garay, Olga V Kalashnikova and 1 more

Abstract read
In one paragraph

Article in Science advances, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing 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

25 citing papers in PubMed.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Article
  6. Understanding Reductions of PMACS ES&T air · 2024
    Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Review
  13. Aerosol demasking enhances climate warming over South Asia.NPJ climate and atmospheric science · 2023
    Article
  14. Article
  15. Article
  16. Review
  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

11 authors.

Melanie S HammerDepartment of Energy, Environmental, and Chemical Engineering, Washington University in St. Louis, St. Louis, MO 63130, USA. melanie.hammer@wustl.edu.ORCID http://orcid.org/0000-0001-8443-7979
Aaron van DonkelaarDepartment of Physics and Atmospheric Science, Dalhousie University, Halifax, NS, Canada.
Randall V MartinDepartment of Energy, Environmental, and Chemical Engineering, Washington University in St. Louis, St. Louis, MO 63130, USA.ORCID http://orcid.org/0000-0003-2632-8402
Erin E McDuffieDepartment of Energy, Environmental, and Chemical Engineering, Washington University in St. Louis, St. Louis, MO 63130, USA.ORCID http://orcid.org/0000-0002-6845-6077
Alexei LyapustinEarth Sciences Division, NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA.ORCID http://orcid.org/0000-0003-1105-5739
Andrew M SayerEarth Sciences Division, NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA.ORCID http://orcid.org/0000-0001-9149-1789
N Christina HsuEarth Sciences Division, NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA.ORCID http://orcid.org/0000-0002-3983-8826
Robert C LevyEarth Sciences Division, NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA.ORCID http://orcid.org/0000-0002-8933-5303
Michael J GarayJet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109, USA.ORCID http://orcid.org/0000-0002-1374-5074
Olga V KalashnikovaJet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109, USA.ORCID http://orcid.org/0000-0002-1330-1529
Ralph A KahnEarth Sciences Division, NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA.ORCID http://orcid.org/0000-0002-5234-6359

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Lockdowns during the COVID-19 pandemic provide an unprecedented opportunity to examine the effects of human activity on air quality. The effects on fine particulate matter (PM

Identifiers

PMID34162552
PMCPMC8221629

What OpenQuestion holds

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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.