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Microbial Source Tracking as a Method of Determination of Beach Sand Contamination

2022-06-28Journal article Open access
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dc.contributor.authorValério, Elisabete
dc.contributor.authorSantos, Maria Leonor
dc.contributor.authorTeixeira, Pedro
dc.contributor.authorMatias, Ricardo
dc.contributor.authorMendonça, João
dc.contributor.authorAhmed, Warish
dc.contributor.authorBrandão, João
dc.date.accessioned2023-01-11T11:01:39Z
dc.date.available2023-01-11T11:01:39Z
dc.date.issued2022-06-28
dc.descriptionThis article belongs to the Special Issue Environmental Microbiology: Perspectives for Medicine and Public Health.pt_PT
dc.description.abstractBeach sand may act as a reservoir for numerous microorganisms, including enteric pathogens. Several of these pathogens originate in human or animal feces, which may pose a public health risk. In August 2019, high levels of fecal indicator bacteria (FIB) were detected in the sand of the Azorean beach Prainha, Terceira Island, Portugal. Remediation measures were promptly implemented, including sand removal and the spraying of chlorine to restore the sand quality. To determine the source of the fecal contamination, during the first campaign, supratidal sand samples were collected from several sites along the beach, followed by microbial source tracking (MST) analyses of Bacteroides marker genes for five animal species, including humans. Some of the sampling sites revealed the presence of marker genes from dogs, seagulls, and ruminants. Making use of the information on biological sources originating partially from dogs, the municipality enforced restrictive measures for dog-walking at the beach. Subsequent sampling campaigns detected low FIB contamination due to the mitigation and remediation measures that were undertaken. This is the first case study where the MST approach was used to determine the contamination sources in the supratidal sand of a coastal beach. Our results show that MST can be an essential tool to determine sources of fecal contamination in the sand. This study shows the importance of holistic management of beaches that should go beyond water quality monitoring for FIB, putting forth evidence for beach sand monitoring.pt_PT
dc.description.sponsorshipFinancial support came from CESAM (UID/AMB/50017-POCI-01-0145-FEDER-007638) and CITAB (UID/AGR/04033/2019), via FCT/MCTES, from national funds (PIDDAC), cofounded by FEDER (PT2020 Partnership Agreement and Compete 2020)pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationInt J Environ Res Public Health . 2022 Jun 28;19(13):7934. doi: 10.3390/ijerph19137934pt_PT
dc.identifier.doi10.3390/ijerph19137934pt_PT
dc.identifier.issn1660-4601
dc.identifier.urihttp://hdl.handle.net/10400.18/8421
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherMDPIpt_PT
dc.relationCentre for Environmental and Marine Studies
dc.relationCentre for the Research and Technology of Agro-Environmental and Biological Sciences
dc.relation.publisherversionhttps://www.mdpi.com/resolver?pii=ijerph19137934pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectBeachpt_PT
dc.subjectCoastal Sandpt_PT
dc.subjectFecal Contaminationpt_PT
dc.subjectFecal Indicator Bacteria (FIB)pt_PT
dc.subjectMicrobial Source Tracking (MST)pt_PT
dc.subjectAgentes Microbianos e Ambientept_PT
dc.titleMicrobial Source Tracking as a Method of Determination of Beach Sand Contaminationpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleCentre for Environmental and Marine Studies
oaire.awardTitleCentre for the Research and Technology of Agro-Environmental and Biological Sciences
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UID%2FAMB%2F50017%2F2019/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UID%2FAGR%2F04033%2F2019/PT
oaire.citation.issue13pt_PT
oaire.citation.startPage7934pt_PT
oaire.citation.titleInternational Journal of Environmental Research and Public Healthpt_PT
oaire.citation.volume19pt_PT
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.embargofctAcesso de acordo com política editorial da revista.pt_PT
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isProjectOfPublication6caaec14-90c9-4172-8834-3f0a43f853e1
relation.isProjectOfPublication2f7f6637-2022-42ff-9800-d29a8e3271a1
relation.isProjectOfPublication.latestForDiscovery6caaec14-90c9-4172-8834-3f0a43f853e1

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