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Microbial source tracking of untreated human wastewater and animal scats in urbanized estuarine waters.
Ahmed, Warish; Payyappat, Sudhi; Cassidy, Michele; Harrison, Nathan; Besley, Colin.
Afiliación
  • Ahmed W; CSIRO Environment, Ecosciences Precinct, 41 Boggo Road, Dutton Park, QLD 4102, Australia. Electronic address: Warish.Ahmed@csiro.au.
  • Payyappat S; Sydney Water, 1 Smith Street, Parramatta, NSW 2150, Australia.
  • Cassidy M; Sydney Water, 1 Smith Street, Parramatta, NSW 2150, Australia.
  • Harrison N; Sydney Water, 1 Smith Street, Parramatta, NSW 2150, Australia.
  • Besley C; Sydney Water, 1 Smith Street, Parramatta, NSW 2150, Australia.
Sci Total Environ ; 877: 162764, 2023 Jun 15.
Article en En | MEDLINE | ID: mdl-36907409
The study assessed the performance characteristics of host sensitivity, host specificity and concentration for seven human wastewater- and six animal scat-associated marker genes by analysing human wastewater and animal scat samples from urban catchments of the mega-coastal city of Sydney, Australia. Absolute host sensitivity was exhibited across three criteria used to assess seven human wastewater-associated marker genes of cross-assembly phage (CrAssphage), human adenovirus (HAdV), Bacteroides HF183 (HF183), human polyomavirus (HPyV), Lachnospiraceae (Lachno3), Methnobrevibacter smithii nifH (nifH) and pepper mild mottle virus (PMMoV). In contrast, only the horse scat-associated marker gene Bacteroides HoF597 (HoF597) exhibited absolute host sensitivity. The absolute host specificity value of 1.0 was returned for the wastewater-associated marker genes of HAdV, HPyV, nifH and PMMoV for each of the three applied host specificity calculation criteria, while values of >0.9 were returned for CrAssphage and Lachno3. Ruminants and cow scat-associated marker genes of BacR and CowM2, respectively exhibited the absolute host specificity value of 1.0. Concentrations of Lachno3 were greater in most human wastewater samples followed by CrAssphage, HF183, nifH, HPyV, PMMoV and HAdV. Human wastewater marker genes were detected in several scat samples from cats and dogs, and this suggests concordant sampling of animal scat-associated marker genes and at least two human wastewater-associated marker genes will be required to assist in interpretation of fecal sources in environmental waters. A greater prevalence, together with several samples with greater concentrations of human wastewater-associated marker genes PMMoV and CrAssphage warrant consideration by water quality managers for the detection of diluted human fecal pollution in estuarine waters.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Bacteriófagos / Poliomavirus Tipo de estudio: Risk_factors_studies Límite: Animals / Female / Humans País/Región como asunto: Oceania Idioma: En Revista: Sci Total Environ Año: 2023 Tipo del documento: Article Pais de publicación: Países Bajos

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Bacteriófagos / Poliomavirus Tipo de estudio: Risk_factors_studies Límite: Animals / Female / Humans País/Región como asunto: Oceania Idioma: En Revista: Sci Total Environ Año: 2023 Tipo del documento: Article Pais de publicación: Países Bajos