New Research Shows that Airborne Transmission of COVID-19 Can Occur When Conditions are Right

October 15, 2020

The CDC recently reported that airborne transmission of SARS-CoV-2 can occur in rare cases under just the right circumstances. In most cases, the virus is transmitted from one person to another in droplet form, and occurs when affected individuals are less than six feet away from the source for 15 minutes or more. That’s because the “droplets” are heavy enough to fall to the ground, and do not stay suspended in air. However, new research indicates that when exposure occurs in enclosed spaces, exposure time is greater than 30 minutes, and some kind of expiratory exertion is taking place, such as shouting, singing, or exercising, the virus can be transmitted in aerosol form (smaller particles suspended in air). Social distancing, use of masks, hand hygiene, surface cleaning and disinfection, ventilation, and avoidance of crowded indoor spaces are effective protective measures for both forms of transmission. However, adequate ventilation and avoidance of crowded indoor spaces are especially important when work is being performed in enclosed spaces where circumstances can increase the concentration of suspended small particles carrying the infectious virus. If you believe your workers could be exposed to airborne transmission of the virus, MCAA recommends that you revise your COVID-19 Exposure Control Plan to ensure adequate ventilation and avoidance of crowded indoor spaces in affected work areas.

LEARN MORE

Related Articles
The annual MCAA/CNA Safety Excellence Awards program honors MCAA member companies’ successful safety programs and innovative safety initiatives because nothing is more important than the health and safety of our workers. Take a moment to celebrate your company’s successes in the age of COVID-19 – Apply Today!…
MCAA and long-time safety partner CNA bring you the prestigious MCAA/CNA Safety Excellence Awards Program. The annual awards honor MCAA member companies’ successful safety programs and innovative safety initiatives because nothing is more important than the health and safety of our workers. Take a moment to celebrate your company’s successes in the age of COVID-19 – apply today!…
MCAA and long-time safety partner CNA bring you the prestigious MCAA/CNA Safety Excellence Awards Program. The annual awards honor MCAA member companies’ successful safety programs and innovative safety initiatives because nothing is more important than the health and safety of our workers. Take a moment to celebrate your company’s successes in the age of COVID-19 – apply today!…
Online OSHA 10- and 30-hour construction safety standards courses, and the OSHA 10-hour general industry safety standards course (for fabrication shops and mechanical service work) are available to MCAA and MSCA members at discount prices.…

2020 was tough and we all needed support from those around us. Did an Educator or Faculty Advisor mentor you throughout the challenging year? If so, share your appreciation by nominating them to receive MCAA’s 2020 Educator of the Year Award. http://ow.ly/uj9y50DeY4t

Did your student chapter have any graduates in 2020? Has your student chapter welcomed new members? Perhaps your student chapter has a new president or faculty advisor. Please email MCAA’s Director of Career Development, Megan Walsh, with your Student Chapter transitions.

As part of MCAA’s efforts to connect our contractor and manufacturer/supplier members, we have added a new Manufacturer/Supplier Training area on http://MCAA.org. Visit to connect with the latest training opportunities from our supplier partners.

http://ow.ly/DTEg50DcuAv

Load More...