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Description: Spatial and Temporal Measurements of SARS-CoV-2 in a Sewershed
Spatial and Temporal Measurements of SARS-CoV-2 in a Sewershed
Abstract
The SARS-CoV-2 virus can be shed in the feces of persons infected with COVID-19. As a result, sewer surveillance can be used to identify the presence of COVID-19 infections in a particular sewershed. Measurement of SARS-CoV-2 in influents to wastewater treatment plants (WWTPs) has been accomplished at hundreds of locations nationally and internationally. Such measurements provide information on the presence of COVID-19 infections, trends including rising and declining case numbers, and quantitative measures to allow comparisons of infection rates between communities. Less commonly, sewer surveillance has been used to measure SARS-CoV-2 within a sewershed (here termed micro-sewersheds) to attempt to determine presence and trends at the community and institutional scale.
Clean Water Services monitored 4 wastewater treatment plants (WWTPs) and 16 manholes in Washington County, Oregon, over a period of 15 months to determine whether SARS-CoV-2 concentrations corresponded with reported COVID-19 cases. SARS-CoV-2 concentrations at WWTPs appeared to be a leading indicator of reported cases. Neighborhoods with high LatinX and high poverty populations also had higher SARS-CoV-2 concentrations. Additionally, outbreaks at food processing plants corresponded with viral peaks in the associated manhole. Surprisingly, SARS-CoV-2 was rarely detected in hospital effluent despite the presence of known cases, and experiments revealed hospital disinfectants can destroy the RNA signal.
SpeakerMansell, Scott
Presentation time
13:50:00
14:10:00
Session time
13:30:00
15:00:00
SessionBuilding a Successful Wastewater-based Epidemiology (WBE) Program
Session number501
TopicFundamental Level, Laboratory Practices, Public Communication and Outreach, Utility Management and Leadership
TopicFundamental Level, Laboratory Practices, Public Communication and Outreach, Utility Management and Leadership
Author(s)
Scott Mansell
Author(s)S. Mansell1; B.A. Layton1; T. Radniecki2; J. Cook1; A. George1;D. Kaya2;H. Ferguson1;A. Piemonti1; C. Kelly2;K. Williamson1;
Author affiliation(s)Clean Water Services, Hillsboro, OR1School of Chemical, Biological, and Environmental Engineering, Oregon State University, Corvallis, OR2
SourceProceedings of the Water Environment Federation
Document typeConference Paper
PublisherWater Environment Federation
Print publication date Oct 2021
DOI10.2175/193864718825158142
Volume / Issue
Content sourceWEFTEC
Copyright2021
Word count10

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