| |
 |
UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-22 2:28 |
 |
|
|
|
Conference: Bucharest University Faculty of Physics 2007 Meeting
Section: Atmosphere and Earth Science; Environment Protection
Title:
Fluorescence characteristics of Romanian surface water
Authors:
Elfrida Pfeiffer, Jeni-Georgeta Vasilescu, Gabriela Pavelescu, Dan Savastru, Livio Belegante, 2Cristian Ioja
Affiliation:
1National Institute of R&D for Optoelectronics,
Magurele 077125, Romania
2University of Bucharest, Centre for Environmental Research and Impact, Bucharest, 010041, Romania
E-mail
gpavel@inoe.inoe.ro; frida@inoe.inoe.ro
Keywords:
water fluorescence, protein-like fluorescence, organic pollutants
Abstract:
Fluorescence spectroscopy can provide an excellent tool to characterize the water quality on the basis of fluorescence properties of dissolved organic matter.
Specific fluorescence fingerprints of Romanian surface water (river and sea) were evidenced using different spectroscopic techniques: emission spectroscopy, synchronous fluorescence scanning (SFS), excitation emission matrix fluorescence spectroscopy (EEMS) and laser induced fluorescence. Some similar features observed for water samples collected from Constanta harbor were present in highly polluted Arges River, deriving from polycyclic aromatic hydrocarbons contamination. Different types of oil products were detected as pollutants in river and seawater. The influence of the evacuated waste water from urban areas and nearby farms was put into evidence by protein-like fluorescence presence (tyrosine and tryptophan-like). The decreasing of high pollution due to the self purification process along the river basin was also evidenced. Distilled water, tap water, river water and marine water were compared.
|
|
|
|