Covid19 transmission risk factors via toilet with aerosols

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  • fppirco
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Covid19 transmission risk factors via toilet with aerosols

Hi;

Covid19 has been detected in sewage waste water ,what about infection transmission via toilet as aerosols due to flushed washing or vaporized  or phyisical infection transmission fece,urine etc..

What preventive action must be followed? Washing and flushing with  chlorine soultions is healthy  and environmental friendly?

Best regards,
Mohammad 
Researcher and consultant
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  • swoolley
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Re: Covid19 transmission risk factors via toilet with aerosols

Hi Mohammad,

A large study on this topic has been conducted, which can be accessed here . A summary of the study is below:

A thorough study lead by Guangzhou Center for Disease Control and Prevention, Guangzhou, China has determined that SARS-CoV-2 laden bioaerosols travelling through drainage systems with dried-out U-traps within a high-rise building, were the most-likely vector of transmission for a COVID-19 outbreak within that building. The study published under the name, "Probable Evidence of Fecal Aerosol Transmission of SARS-CoV-2 in a High-Rise Building", used  a methodology that included forensic investigations, epidemic investigations, on-site simulation tests, and CFD modelling.

The apartments where it is thought that SARS-CoV-2 laden bioaerosols are thought to have entered via the drainage systems, are apartments where it is expected that floor and bathtub u-bends were dried out, therefore lacking any water barrier against aerosol ingress from the drainage network. Authors of the study clearly state that the evidence is circumstantial and that more evidence is needed to confirm the likely-hood of other similar events occurring elsewhere, it provides a warning for how drainage networks not maintained to required hygiene levels may propagate COVID-19 under seemingly unlikely circumstances.
Stuart Woolley
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  • fppirco
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Re: Covid19 transmission risk factors via toilet with aerosols

Dear Stuart 
Thank you so much for your comprehensive  reply , something is concern about preventive  action is using cholorine sloution but  how much it might be dangerous for pipe line becuase of its corrosive nature may be causes pipe lines   deterioration  and absorbed wells and how much cholrine application in absorbed wells
May be dangerous for aquifer layers?

Thanks
Best regards;
Mohammad
Researcher and consultant
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  • fppirco
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Re: Covid19 transmission risk factors via toilet with aerosols

Dear Stuart 

Below link we have just recevied is about waste water monitoring

www.weforum.org/agenda/2020/10/sewage-su...tent=30/10/2020+14:4

With best regards

Mohammad 
Researcher and consultant
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