Evidence map›Paper›PMID 33206424›Full record

ReviewIndoor air2021

A review on the applied techniques of exhaled airflow and droplets characterization.

Khansa Mahjoub Mohammed Merghani, Benoit Sagot, Evelyne Gehin, Guillaume Da, Charles Motzkus

Abstract readReview
In one paragraph

Review in Indoor air, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing 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

16 citing papers in PubMed.

  1. Review
  2. Dependence on relative humidity in the formation of reactive oxygen species in water droplets.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
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  5. Article
  6. Article
  7. Article
  8. Review
  9. Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Review
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  16. Review
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.

Khansa Mahjoub Mohammed MerghaniUniv Paris Est Creteil, CERTES, Creteil, France.ORCID 0000-0002-6122-5831
Benoit SagotESTACA, Montigny-le-Bretonneux, France.
Evelyne GehinUniv Paris Est Creteil, CERTES, Creteil, France.
Guillaume DaUniv Paris Est Creteil, CERTES, Creteil, France.
Charles MotzkusCSTB, Marne-la-Vallée, France.

Funding

Centre Scientifique et Technique du Bâtiment
6 · The paper itself

Abstract

In the last two decades, multidisciplinary research teams worked on developing a comprehensive understanding of the transmission mechanisms of airborne diseases. This article reviews the experimental studies on the characterization of the exhaled airflow and the droplets, comparing the measured parameters, the advantages, and the limitations of each technique. To characterize the airflow field, the global flow-field techniques-high-speed photography, schlieren photography, and PIV-are applied to visualize the shape and propagation of the exhaled airflow and its interaction with the ambient air, while the pointwise measurements provide quantitative measurements of the velocity, flow rate, humidity and temperature at a single point in the flow field. For the exhaled droplets, intrusive techniques are used to characterize the size distribution and concentration of the droplets' dry residues while non-intrusive techniques can measure the droplet size and velocity at different locations in the flow field. The evolution of droplets' size and velocity away from the source has not yet been thoroughly experimentally investigated. Besides, there is a lack of information about the temperature and humidity fields composed by the interaction of the exhaled airflow and the ambient air.

Indexed as

ExhalationAir MovementsAir Pollution, IndoorCoughHumansHumidityRespiratory Physiological PhenomenaRespiratory Tract InfectionsVentilationdry residuesexhaled airflowexperimental techniquesflow-field characterizationparticle-laden flowsrespiratory droplets

Identifiers

PMID33206424
PMCPMC7753802

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.