Journal
ENVIRONMENTAL POLLUTION
Volume 158, Issue 2, Pages 592-598Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.envpol.2009.08.012
Keywords
4-chloroaniline; HPLC-MS; APCI; Sun light degradation; Organic pollutants
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Funding
- ATF (Associazione Ambiente-Territorio e Formazione, Alessandria Italy)
- Direzione Igiene e SanitA Pubblica (Turin, Italy)
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This paper studies the degradation reactions that 4-chloroaniline can naturally undergo in waters for the action of sun light. 10.00 mg L(-1) 4-chloroaniline aqueous solution, without any addition of organic solvent, are undergone to photoirradiation under conditions that simulate sun light. The degradation pathway, followed by HPLC-DAD-MS/MS methods, is complex since the pollutant gives rise to many photoproducts: the predominant species are characterized by m/z values of 217 (P5) and 218 (P6) and are compatible with dimeric structures of 4-chloroaniline. Vibrio fischeri tests indicate that the photoproducts of 4-chloroaniline are characterized by a toxicity level significantly greater than the precursor. (C) 2009 Elsevier Ltd. All rights reserved.
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