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Norovirus Dynamics in Wastewater Discharges and in the Recipient Drinking Water Source: Long-Term Monitoring and Hydrodynamic Modeling
Ryhov County Hospital, Medical Services, Clinical Microbiology.
Chalmers University of Technology, Department of Civil and Environmental Engineering, Water Environment Technology.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Architecture and Water.
Ryhov County Hospital, Medical Services, Clinical Microbiology.
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Number of Authors: 8
2016 (English)In: Environmental Science and Technology, ISSN 0013-936X, E-ISSN 1520-5851, Vol. 50, no 20, 10851-10858 p.Article in journal (Refereed) Published
Abstract [en]

Norovirus (NoV) that enters drinking water sources with wastewater discharges is a common cause of waterborne outbreaks. The impact of wastewater treatment plants (WWTPs) on the river Göta älv (Sweden) was studied using monitoring and hydrodynamic modeling. The concentrations of NoV genogroups (GG) I and II in samples collected at WWTPs and drinking water intakes (source water) during one year were quantified using duplex real-time reverse-transcription polymerase chain reaction. The mean (standard deviation) NoV GGI and GGII genome concentrations were 6.2 (1.4) and 6.8 (1.8) in incoming wastewater and 5.3 (1.4) and 5.9 (1.4) log10 genome equivalents (g.e.) L-1 in treated wastewater, respectively. The reduction at the WWTPs varied between 0.4 and 1.1 log10 units. In source water, the concentration ranged from below the detection limit to 3.8 log10 g.e. L-1. NoV GGII was detected in both wastewater and source water more frequently during the cold than the warm period of the year. The spread of NoV in the river was simulated using a three-dimensional hydrodynamic model. The modeling results indicated that the NoV GGI and GGII genome concentrations in source water may occasionally be up to 2.8 and 1.9 log10 units higher, respectively, than the concentrations measured during the monitoring project

Place, publisher, year, edition, pages
2016. Vol. 50, no 20, 10851-10858 p.
National Category
Water Engineering
Research subject
Urban Water Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-60237DOI: 10.1021/acs.est.6b02110ISI: 000385907200010ScopusID: 2-s2.0-84991795018OAI: oai:DiVA.org:ltu-60237DiVA: diva2:1045412
Note

Validerad; 2016; Nivå 2; 2016-11-09 (andbra)

Available from: 2016-11-09 Created: 2016-11-09 Last updated: 2016-11-18Bibliographically approved

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