Photodegradation of trifluralin in natural waters and soils: Degradation kinetics and influence of organic matter
Φόρτωση...
Ημερομηνία
Συγγραφείς
Dimou, A. D.
Sakkas, V. A.
Albanis, T. A.
Τίτλος Εφημερίδας
Περιοδικό ISSN
Τίτλος τόμου
Εκδότης
Taylor & Francis
Περίληψη
Τύπος
Είδος δημοσίευσης σε συνέδριο
Είδος περιοδικού
peer reviewed
Είδος εκπαιδευτικού υλικού
Όνομα συνεδρίου
Όνομα περιοδικού
International Journal of Environmental Analytical Chemistry
Όνομα βιβλίου
Σειρά βιβλίου
Έκδοση βιβλίου
Συμπληρωματικός/δευτερεύων τίτλος
Περιγραφή
The photochemical degradation of the herbicide trifluralin, a dinitroaniline, has been investigated in different types of natural waters (ground, marine, river, lake) and in distilled water as well as in soils characterized by different textures and compositions. Degradation kinetics was monitored under natural sunlight while the effect of humic acids (HA) on the degradation rate in natural waters was studied under laboratory conditions (Suntest apparatus). The photodegradation rate of the studied herbicide in different natural waters follows first-order kinetics with half-lives ranging from 12 to 29 h. The presence of dissolved organic matter (DOM) in the selected natural waters retarded the photoprocess relative to distilled water. Laboratory experiment has shown that the presence of HA inhibits the photolytic degradation of the herbicide. On the contrary, it was found that the degradation kinetics of trifluralin in soil is accelerated as the percentage content of organic matter increases. Photodegradation of trifluralin on the adsorbed phase (soils) gave depletion curves that can be well described by a first-order equation with half-lives varying from 15 to 38 h depending on the composition of the adsorbing media.
Περιγραφή
Λέξεις-κλειδιά
photodegradation, trifluralin, environmental fate, organic matter, environmental-conditions, gas-chromatography, humic substances, pesticides, photolysis, extraction, surface, greece
Θεματική κατηγορία
Παραπομπή
Σύνδεσμος
<Go to ISI>://000186506700018
http://www.tandfonline.com/doi/pdf/10.1080/0306731031000149660
http://www.tandfonline.com/doi/pdf/10.1080/0306731031000149660
Γλώσσα
en
Εκδίδον τμήμα/τομέας
Όνομα επιβλέποντος
Εξεταστική επιτροπή
Γενική Περιγραφή / Σχόλια
Ίδρυμα και Σχολή/Τμήμα του υποβάλλοντος
Πανεπιστήμιο Ιωαννίνων. Σχολή Θετικών Επιστημών. Τμήμα Χημείας