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Dynamics of pesticide residues in soils during the growing season: a case study in peach orchards, east-central Portugal

2025Journal article Open access
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dc.contributor.authorVeloso, Abel
dc.contributor.authorSilva, Vera
dc.contributor.authorOsman, Rima
dc.contributor.authorSimões, M.P.
dc.contributor.authorMonteiro, M.C.H.
dc.contributor.authorViolette Geissen
dc.date.accessioned2025-05-29T15:54:34Z
dc.date.available2025-05-29T15:54:34Z
dc.date.issued2025
dc.description.abstractPermanent crops rely heavily on pesticides. Their short-term behaviour has already been characterised under laboratory conditions. However, their degradation in the field is still poorly understood. Furthermore, studies that relate pesticide residues in soil with their application history are still scarce, despite their relevance for inferring the historical and diffuse dimensions of pollution. This work explores the spatial and temporal dynamics of pesticide residues in soil under the light of their application records and the accuracy of the predicted environmental concentrations (PEC). To achieve these purposes, 270 soil samples were collected at 5 sampling times over the 2022 growing season, in 18 peach orchards from east-central Portugal. Moreover, the data extracted from the application records was used to obtain predicted levels which were compared with the measured results. A total of 37 residues were analysed. Overall, 32 of these were detected back in, at least, one sample. Glyphosate and AMPA were the most frequently found and had the highest median concentrations. The comparison between predicted and measured environmental concentrations (MEC) suggests that pesticide decay was generally slower than expected. Glyphosate, AMPA, fluopyram and tebuconazole showed a high potential for resulting in background concentrations in soil. Our results highlight the need for regular and comprehensive monitoring, being recommended long-term assessments of the persistence and fate of pesticides under realistic conditions. Furthermore, our results also stress the necessity of more studies on reasons for PEC-MEC mismatch, a factor of concern considering the regulatory relevance of PEC values.</jats:p>eng
dc.identifier.citationVELOSO, A. [et al.] (2025). Dynamics of pesticide residues in soils during the growing season: a case study in peach orchards, east-central Portugal. Environmental Monitoring and Assessment. 197, a 285. DOI: 10.1007/s10661-025-13698-z
dc.identifier.doi10.1007/s10661-025-13698-z
dc.identifier.issn1573-2959
dc.identifier.urihttp://hdl.handle.net/10400.11/10170
dc.language.isoeng
dc.peerreviewedyes
dc.publisherSpringer Science and Business Media LLC
dc.relation.ispartofEnvironmental Monitoring and Assessment
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectMulti-residue analysis
dc.subjectPeach orchards
dc.subjectPesticide residues
dc.subjectPredicted versus measured environmental concentrations
dc.titleDynamics of pesticide residues in soils during the growing season: a case study in peach orchards, east-central Portugaleng
dc.typejournal article
dspace.entity.typePublication
oaire.citation.issue3
oaire.citation.titleEnvironmental Monitoring and Assessment
oaire.citation.volume197
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameSimões
person.familyNameMonteiro
person.givenNameMaria Paula
person.givenNameM.C.H.
person.identifier.ciencia-id5215-A196-0362
person.identifier.ciencia-id5D12-6B5C-23F1
person.identifier.orcid0000-0002-6599-0688
person.identifier.orcid0000-0003-0101-1599
person.identifier.scopus-author-id36504886200
relation.isAuthorOfPublicationc1c2eaaf-223e-4152-9245-04303ee41d75
relation.isAuthorOfPublication00f17bad-649e-4953-a3a4-dd8c48b67f05
relation.isAuthorOfPublication.latestForDiscoveryc1c2eaaf-223e-4152-9245-04303ee41d75

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