2009
DOI: 10.1016/j.jaerosci.2008.10.003
|View full text |Cite
|
Sign up to set email alerts
|

Abstract: Size distributions of expiratory droplets expelled during coughing and speaking and the velocities of the expiration air jets of healthy volunteers were measured. Droplet size was measured using the interferometric Mie imaging (IMI) technique while the particle image velocimetry (PIV) technique was used for measuring air velocity. These techniques allowed measurements in close proximity to the mouth and avoided air sampling losses. The average expiration air velocity was 11.7 m/s for coughing and 3.9 m/s for s… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
2
1
1
1

Citation Types

19
766
3
14

Year Published

2011
2011
2023
2023

Publication Types

Select...
10

Relationship

0
10

Authors

Journals

citations
Cited by 834 publications
(802 citation statements)
references
References 13 publications
19
766
3
14
Order By: Relevance
“…It has been proved that exhaled droplets can be a significant particle source from human, whose emission characteristics have been reported in many studies (e.g., Fabian et al, 2008;Chao et al, 2009;Morawska et al, 2009b). Therefore, it is important to assess the influence of exhaled droplets on the emission rates of particles from clothed human body measured in this study.…”
Section: Influence Of Exhaled Dropletsmentioning
confidence: 88%
“…It has been proved that exhaled droplets can be a significant particle source from human, whose emission characteristics have been reported in many studies (e.g., Fabian et al, 2008;Chao et al, 2009;Morawska et al, 2009b). Therefore, it is important to assess the influence of exhaled droplets on the emission rates of particles from clothed human body measured in this study.…”
Section: Influence Of Exhaled Dropletsmentioning
confidence: 88%
“…The affected area extended as far as 2 m or more. Chao et al (2009) reported particle size data from 11 subjects and PIV data from one male and one female during coughing and speaking, using a saline fog as tracer. The average velocity of 50 coughs from each subject was 11.7 m/s.…”
Section: Introductionmentioning
confidence: 99%
“…Coughing releases more droplets than other maneuvers such as talking or singing as higher force is involved in the former act and is thus considered to be the major factor involved in the transmission mechanism. 13,14 Several studies studying cough patterns and household transmission have shown that patients cough more during the day than at night and that cough frequency is an important predictor of transmission. 15,16 As noted by Richard Turner (NHS Foundation Trust, UK), the act of coughing in the context of infectiousness of TB has not been looked into.…”
Section: Tuberculosis: the Disease The Pathogen And The Hostmentioning
confidence: 99%