Doménech Antich, EM.; Amoros, I.; Moreno Trigos, MY.; Alonso Molina, JL. (2018). Cryptosporidium and Giardia safety margin increase in leafy green vegetables
irrigated with treated wastewater. International Journal of Hygiene and Environmental Health. 221(1):112-119. https://doi.org/10.1016/j.ijheh.2017.10.009
Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10251/115881
Title:
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Cryptosporidium and Giardia safety margin increase in leafy green vegetables
irrigated with treated wastewater
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Author:
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Doménech Antich, Eva Mª
Amoros, Inmaculada
Moreno Trigos, Mª Yolanda
Alonso Molina, José Luís
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UPV Unit:
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Universitat Politècnica de València. Instituto Universitario de Ingeniería del Agua y del Medio Ambiente - Institut Universitari d'Enginyeria de l'Aigua i Medi Ambient
Universitat Politècnica de València. Departamento de Tecnología de Alimentos - Departament de Tecnologia d'Aliments
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Issued date:
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Abstract:
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[EN] The presence of Cryptosporidium and Giardia in waste water is a main concern because water reuse for irrigation can jeopardize human health. Spanish Legislation for water reuse does not oblige to analyze the presence ...[+]
[EN] The presence of Cryptosporidium and Giardia in waste water is a main concern because water reuse for irrigation can jeopardize human health. Spanish Legislation for water reuse does not oblige to analyze the presence of both pathogens Cryptosporidium and Giardia in reused water for irrigation. Therefore, the objective of this paper is to determine the influence of wastewater treatment in the increase of the consumer safety margin in relation to the presence of Cryptosporidium and Giardia in leafy green vegetables. With this aim in mind, a total of 108 samples from raw (influent) and treated wastewater (effluent) from three wastewater treatment plants in Spain were analysed according to USEPA Method 1623. Effluent results show that Cryptosporidium oocysts average counts ranged from 1.38 to 2.6/L oocysts and Giardia cysts ranged from 0.6 to 1.7/L cysts, which means a removal values of 2.7 log, 2.5 log and 1.8 log for Cryptosporidium oocysts and 1 log, 2 log and 2.2 log for Giardia cysts in the three wastewater treatment plants analysed. In relation to safety margin the highest probability that exposure exceed the dose response was observed for Giardia. In addition, the sensitivity analysis showed that (oo) cysts concentration present in the leafy green vegetables and the human dose-response were the most influential inputs in the safety margin obtained.
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Subjects:
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Giardia
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Wastewater
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Risk assessment
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Reclaimed water
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Copyrigths:
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Reconocimiento - No comercial - Sin obra derivada (by-nc-nd)
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Source:
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International Journal of Hygiene and Environmental Health. (issn:
1438-4639
)
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DOI:
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10.1016/j.ijheh.2017.10.009
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Publisher:
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Elsevier
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Publisher version:
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http://dx.doi.org/10.1016/j.ijheh.2017.10.009
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Project ID:
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info:eu-repo/grantAgreement/MINECO//JPIW2013-095-C03-02/ES/NUEVOS INSTRUMENTOS MOLECULARES Y DE METAGENOMICA PARA LA IDENTIFICACION Y CONTROL A ESCALA EUROPEA DE CONTAMINANTES MICROBIANOS EMERGENTES EN AGUA DE RIEGO/
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Thanks:
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We thank EPSAR for authorizing us sampling of WWTP and the personnel of WWTP for providing with WWTP samples. We also thank members of GAMASER for concentrating the secondary and tertiary WWTP samples with the Envirocheck ...[+]
We thank EPSAR for authorizing us sampling of WWTP and the personnel of WWTP for providing with WWTP samples. We also thank members of GAMASER for concentrating the secondary and tertiary WWTP samples with the Envirocheck capsules. This study has been supported by the Spanish Ministry of Economy and Competitiveness (MINECO), in the frame of the collaborative international consortium WATERJPI2013-095-C03-02-METAWATER of the Water Challenges for a Changing World Joint Programming Initiative (Water JPI) Pilot Call.
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Type:
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Artículo
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