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http://acervodigital.unesp.br/handle/11449/33715
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DC Field | Value | Language |
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dc.contributor.author | Santos, TCR | - |
dc.contributor.author | Rocha, Julio Cesar | - |
dc.contributor.author | Alonso, R. M. | - |
dc.contributor.author | Martinez, E. | - |
dc.contributor.author | Ibanez, C. | - |
dc.contributor.author | Barcelo, D. | - |
dc.date.accessioned | 2014-05-20T15:22:48Z | - |
dc.date.accessioned | 2016-10-25T17:56:35Z | - |
dc.date.available | 2014-05-20T15:22:48Z | - |
dc.date.available | 2016-10-25T17:56:35Z | - |
dc.date.issued | 1998-11-15 | - |
dc.identifier | http://dx.doi.org/10.1021/es980212k | - |
dc.identifier.citation | Environmental Science & Technology. Washington: Amer Chemical Soc, v. 32, n. 22, p. 3479-3484, 1998. | - |
dc.identifier.issn | 0013-936X | - |
dc.identifier.uri | http://hdl.handle.net/11449/33715 | - |
dc.identifier.uri | http://acervodigital.unesp.br/handle/11449/33715 | - |
dc.description.abstract | Propanil and its major degradation product, 3,4-dichloroaniline (DCA), were monitored in surface water and soil samples from two rice fields of the Ebre Delta area (Tarragona, Spain) following agricultural application. On-line solid-phase extraction (SPE) (water) and Soxhlet extraction (soil) followed by liquid chromatography/diode array detection (LC/DAD) were used for the trace determination of both compounds. Unequivocal confirmation/identification was conducted by using liquid chromatography/atmospheric pressure chemical ionization-mass spectrometry, LC/APCI/MS (using negative and positive ionization modes). Concentrations of the herbicide propanil in water samples varied from 1.9 to 55.9 mu g/L. Propanil degraded very rapidly to DCA, and high concentrations of this product were found, varying from 16.5 to 470 mu g/L in water and 119 +/- 22 mu g/kg in soil samples. No detectable DCA (<0.001%) was found in the applied pesticide formulation, indicating that DCA formation took place after propanil application. These field results compared favorably with laboratory experiments showing that humic interactions had a strong influence on the pesticide degradation. The half-lifes under real conditions for propanil and DCA, calculated using a first-order decay, were 1.2 and 1.6 days, respectively. | en |
dc.format.extent | 3479-3484 | - |
dc.language.iso | eng | - |
dc.publisher | Amer Chemical Soc | - |
dc.source | Web of Science | - |
dc.title | Rapid degradation of propanil in rice crop fields | en |
dc.type | outro | - |
dc.contributor.institution | CSIC | - |
dc.contributor.institution | Universidade Federal do Maranhão (UFMA) | - |
dc.contributor.institution | Universidade Estadual Paulista (UNESP) | - |
dc.contributor.institution | Soc Espanola Ornitol BIRDLIFE | - |
dc.description.affiliation | CSIC, Cid, Dept Environm Chem, ES-08034 Barcelona, Spain | - |
dc.description.affiliation | Fed Univ Maranhao, Dept Chem, BR-65080040 Sao Luis, MA, Brazil | - |
dc.description.affiliation | UNESP, Div Analyt Chem, IQ, BR-14800400 Araraquara, SP, Brazil | - |
dc.description.affiliation | Soc Espanola Ornitol BIRDLIFE, Deltebre Tarragona 43580, Spain | - |
dc.description.affiliationUnesp | UNESP, Div Analyt Chem, IQ, BR-14800400 Araraquara, SP, Brazil | - |
dc.identifier.doi | 10.1021/es980212k | - |
dc.identifier.wos | WOS:000076986800005 | - |
dc.rights.accessRights | Acesso restrito | - |
dc.relation.ispartof | Environmental Science & Technology | - |
Appears in Collections: | Artigos, TCCs, Teses e Dissertações da Unesp |
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