Publicação
The effect of chloride ions and organic matter on the photodegradation of acetamiprid in saline waters
| Resumo: | The photodegradation kinetics of the neonicotinoid insecticide acetamiprid (ACT) was investigated under different conditions of pH, salinity and dissolved organic matter (DOM). Photodegradation of ACT in saline and freshwaters followed pseudo-first-order kinetics. Varying pH from 5 to 9 did not significantly affect the photodegradation rate constants (kp) of ACT. Addition of chloride ions increased significantly the value of kp. In the presence of AHA, 10 mg L−1, kp was reduced to approximately 34% of that in sodium chloride solutions 35 g L−1 The observed inhibition may be a consequence of the antioxidant properties of DOM and/or the shading of DOM in the solution. In coastal waters, kp showed a tendency to increase with increasing of salinity and to decrease in the presence of DOM. This is an important outcome since coastal lagoons are important and dynamic systems that are likely to be highly influenced by global climate changes. |
|---|---|
| Autores principais: | Pinto, M. I. |
| Outros Autores: | Salgado, Ricardo; Laia, C.A.T.; Cooper, William J.; Sontag, J.; Burrows, Hugh D.; Branco, L.; Vale, C.; Noronha, J. P. |
| Assunto: | Pesticides Neonicotinoids Climate change Salinity DOM Photolysis |
| Ano: | 2018 |
| País: | Portugal |
| Tipo de documento: | artigo |
| Tipo de acesso: | acesso restrito |
| Instituição associada: | Instituto Politécnico de Setúbal |
| Idioma: | inglês |
| Origem: | Instituto Politécnico de Setúbal |
| _version_ | 1864243652738416640 |
|---|---|
| author | Pinto, M. I. |
| author2 | Salgado, Ricardo Laia, C.A.T. Cooper, William J. Sontag, J. Burrows, Hugh D. Branco, L. Vale, C. Noronha, J. P. |
| author2_role | author author author author author author author author |
| author_facet | Pinto, M. I. Salgado, Ricardo Laia, C.A.T. Cooper, William J. Sontag, J. Burrows, Hugh D. Branco, L. Vale, C. Noronha, J. P. |
| author_role | author |
| contributor_name_str_mv | Repositório Comum |
| country_str | PT |
| creators_json_str | [{\"Person.name\":\"Pinto, M. I.\"},{\"Person.name\":\"Salgado, Ricardo\"},{\"Person.name\":\"Laia, C.A.T.\"},{\"Person.name\":\"Cooper, William J.\"},{\"Person.name\":\"Sontag, J.\"},{\"Person.name\":\"Burrows, Hugh D.\"},{\"Person.name\":\"Branco, L.\"},{\"Person.name\":\"Vale, C.\"},{\"Person.name\":\"Noronha, J. P.\"}] |
| datacite.contributors.contributor.contributorName.fl_str_mv | Repositório Comum |
| datacite.creators.creator.creatorName.fl_str_mv | Pinto, M. I. Salgado, Ricardo Laia, C.A.T. Cooper, William J. Sontag, J. Burrows, Hugh D. Branco, L. Vale, C. Noronha, J. P. |
| datacite.date.Accepted.fl_str_mv | 2018-06-01T00:00:00Z |
| datacite.date.available.fl_str_mv | 2019-04-30T10:49:56Z |
| datacite.date.embargoed.fl_str_mv | 2019-04-30T10:49:56Z |
| datacite.rights.fl_str_mv | http://purl.org/coar/access_right/c_16ec |
| datacite.subjects.subject.fl_str_mv | Pesticides Neonicotinoids Climate change Salinity DOM Photolysis |
| datacite.titles.title.fl_str_mv | The effect of chloride ions and organic matter on the photodegradation of acetamiprid in saline waters |
| dc.contributor.none.fl_str_mv | Repositório Comum |
| dc.creator.none.fl_str_mv | Pinto, M. I. Salgado, Ricardo Laia, C.A.T. Cooper, William J. Sontag, J. Burrows, Hugh D. Branco, L. Vale, C. Noronha, J. P. |
| dc.date.Accepted.fl_str_mv | 2018-06-01T00:00:00Z |
| dc.date.available.fl_str_mv | 2019-04-30T10:49:56Z |
| dc.date.embargoed.fl_str_mv | 2019-04-30T10:49:56Z |
| dc.format.none.fl_str_mv | application/pdf |
| dc.identifier.none.fl_str_mv | http://hdl.handle.net/10400.26/28383 |
| dc.language.none.fl_str_mv | eng |
| dc.rights.none.fl_str_mv | http://purl.org/coar/access_right/c_16ec |
| dc.subject.none.fl_str_mv | Pesticides Neonicotinoids Climate change Salinity DOM Photolysis |
| dc.title.fl_str_mv | The effect of chloride ions and organic matter on the photodegradation of acetamiprid in saline waters |
| dc.type.none.fl_str_mv | http://purl.org/coar/resource_type/c_6501 |
| description | The photodegradation kinetics of the neonicotinoid insecticide acetamiprid (ACT) was investigated under different conditions of pH, salinity and dissolved organic matter (DOM). Photodegradation of ACT in saline and freshwaters followed pseudo-first-order kinetics. Varying pH from 5 to 9 did not significantly affect the photodegradation rate constants (kp) of ACT. Addition of chloride ions increased significantly the value of kp. In the presence of AHA, 10 mg L−1, kp was reduced to approximately 34% of that in sodium chloride solutions 35 g L−1 The observed inhibition may be a consequence of the antioxidant properties of DOM and/or the shading of DOM in the solution. In coastal waters, kp showed a tendency to increase with increasing of salinity and to decrease in the presence of DOM. This is an important outcome since coastal lagoons are important and dynamic systems that are likely to be highly influenced by global climate changes. |
| dirty | 0 |
| eu_rights_str_mv | restrictedAccess |
| format | article |
| fulltext.url.fl_str_mv | https://comum.rcaap.pt/bitstreams/c1432f21-8f73-4d46-a470-b17a434399cb/download |
| id | ips_dc2befc110b98adbbcf0dee45fd6c846 |
| identifier.url.fl_str_mv | http://hdl.handle.net/10400.26/28383 |
| instacron_str | ips |
| institution | Instituto Politécnico de Setúbal |
| instname_str | Instituto Politécnico de Setúbal |
| language | eng |
| network_acronym_str | ips |
| network_name_str | Instituto Politécnico de Setúbal |
| oai_identifier_str | oai:comum.rcaap.pt:10400.26/28383 |
| organization_str_mv | urn:organizationAcronym:ips |
| person_str_mv | Pinto, M. I. Salgado, Ricardo Laia, C.A.T. Cooper, William J. Sontag, J. Burrows, Hugh D. Branco, L. Vale, C. Noronha, J. P. |
| publishDate | 2018 |
| reponame_str | Instituto Politécnico de Setúbal |
| repository_id_str | urn:repositoryAcronym:ips |
| service_str_mv | urn:repositoryAcronym:ips |
| spelling | engpt_PTThe photodegradation kinetics of the neonicotinoid insecticide acetamiprid (ACT) was investigated under different conditions of pH, salinity and dissolved organic matter (DOM). Photodegradation of ACT in saline and freshwaters followed pseudo-first-order kinetics. Varying pH from 5 to 9 did not significantly affect the photodegradation rate constants (kp) of ACT. Addition of chloride ions increased significantly the value of kp. In the presence of AHA, 10 mg L−1, kp was reduced to approximately 34% of that in sodium chloride solutions 35 g L−1 The observed inhibition may be a consequence of the antioxidant properties of DOM and/or the shading of DOM in the solution. In coastal waters, kp showed a tendency to increase with increasing of salinity and to decrease in the presence of DOM. This is an important outcome since coastal lagoons are important and dynamic systems that are likely to be highly influenced by global climate changes.application/pdfpt_PTThe effect of chloride ions and organic matter on the photodegradation of acetamiprid in saline watersPinto, M. I.Salgado, RicardoLaia, C.A.T.Cooper, William J.Sontag, J.Burrows, Hugh D.Branco, L.Vale, C.Noronha, J. P.HostingInstitutionOrganizationalRepositório Comume-mailmailto:comum@rcaap.ptcomum@rcaap.ptISSNIsPartOf1010-6030DOIIsPartOf10.1016/j.jphotochem.2018.04.0202019-04-30T10:49:56Z2018-062018-06-01T00:00:00ZHandlehttp://hdl.handle.net/10400.26/28383http://purl.org/coar/access_right/c_16ecrestricted accessPesticidesNeonicotinoidsClimate changeSalinityDOMPhotolysis944377 bytesliteraturehttp://purl.org/coar/resource_type/c_6501journal articlehttp://purl.org/coar/access_right/c_16ecapplication/pdffulltexthttps://comum.rcaap.pt/bitstreams/c1432f21-8f73-4d46-a470-b17a434399cb/downloadJournal of Photochemistry and Photobiology A: Chemistry |
| spellingShingle | The effect of chloride ions and organic matter on the photodegradation of acetamiprid in saline waters Pinto, M. I. Pesticides Neonicotinoids Climate change Salinity DOM Photolysis |
| subject.fl_str_mv | Pesticides Neonicotinoids Climate change Salinity DOM Photolysis |
| title | The effect of chloride ions and organic matter on the photodegradation of acetamiprid in saline waters |
| title_full | The effect of chloride ions and organic matter on the photodegradation of acetamiprid in saline waters |
| title_fullStr | The effect of chloride ions and organic matter on the photodegradation of acetamiprid in saline waters |
| title_full_unstemmed | The effect of chloride ions and organic matter on the photodegradation of acetamiprid in saline waters |
| title_short | The effect of chloride ions and organic matter on the photodegradation of acetamiprid in saline waters |
| title_sort | The effect of chloride ions and organic matter on the photodegradation of acetamiprid in saline waters |
| topic | Pesticides Neonicotinoids Climate change Salinity DOM Photolysis |
| topic_facet | Pesticides Neonicotinoids Climate change Salinity DOM Photolysis |
| url | http://hdl.handle.net/10400.26/28383 |
| visible | 1 |