Please use this identifier to cite or link to this item:
http://hdl.handle.net/10773/24727
Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Oliveira, Cindy | pt_PT |
dc.contributor.author | Lima, Diana L D | pt_PT |
dc.contributor.author | Silva, Carla Patrícia | pt_PT |
dc.contributor.author | Calisto, Vânia | pt_PT |
dc.contributor.author | Otero, Marta | pt_PT |
dc.contributor.author | Esteves, Valdemar I | pt_PT |
dc.date.accessioned | 2018-11-28T16:00:23Z | - |
dc.date.issued | 2019-01-15 | - |
dc.identifier.issn | 0048-9697 | pt_PT |
dc.identifier.uri | http://hdl.handle.net/10773/24727 | - |
dc.description.abstract | Sulfamethoxazole (SMX) is the most representative antibiotic of the sulfonamides group used in both human and veterinary medicine, and thus frequently detected in water resources. This has caused special concern due to the pronounced toxicity and potential to foster bacterial resistance of this drug. Therefore, and to further understand the fate of SMX in the aquatic environment, its photodegradation under simulated solar radiation was here studied in ultrapure water and in different environmental samples, namely estuarine water, freshwater and wastewater. SMX underwent very fast photodegradation in ultrapure water, presenting a half-life time (t1/2) of 0.86 h. However, in environmental samples, the SMX photodegradation rate was much slower, with 5.4 h < t1/2 < 7.8 h. The main novelty of this work was to prove that pH, salinity and dissolved organic matter are determinant factors in the decrease of the SMX photodegradation rate observed in environmental samples and, thus, they will influence the SMX fate and persistence, potentially increasing the risks associated to the presence of this pollutant in the environment. | pt_PT |
dc.language.iso | eng | pt_PT |
dc.publisher | Elsevier | pt_PT |
dc.relation | PTDC/ASP-PES/29021/2017 | pt_PT |
dc.relation | info:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBPD%2F80315%2F2011/PT | pt_PT |
dc.relation | info:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBPD%2F78645%2F2011/PT | pt_PT |
dc.relation | IF/00314/2015 | pt_PT |
dc.relation | info:eu-repo/grantAgreement/FCT/5876/147273/PT | pt_PT |
dc.relation | info:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBPD%2F80315%2F2011/PT | pt_PT |
dc.rights | openAccess | pt_PT |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | pt_PT |
dc.subject | Humic Substances | pt_PT |
dc.subject | Photolysis | pt_PT |
dc.subject | Sulfonamide antibiotics | pt_PT |
dc.subject | Apparent direct quantum yield | pt_PT |
dc.subject | Emerging contaminants | pt_PT |
dc.title | Photodegradation of sulfamethoxazole in environmental samples: the role of pH, organic matter and salinity | pt_PT |
dc.type | article | pt_PT |
dc.description.version | published | pt_PT |
dc.peerreviewed | yes | pt_PT |
degois.publication.firstPage | 1403 | pt_PT |
degois.publication.lastPage | 1410 | pt_PT |
degois.publication.title | The Science of the total environment | pt_PT |
degois.publication.volume | 648 | pt_PT |
dc.date.embargo | 2020-01-15 | - |
dc.identifier.doi | 10.1016/j.scitotenv.2018.08.235 | pt_PT |
dc.identifier.essn | 1879-1026 | pt_PT |
Appears in Collections: | CESAM - Artigos DAO - Artigos DQ - Artigos |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Post print_SMX paper.pdf | 2.85 MB | Adobe PDF | View/Open |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.