TOTAL LUMINESCENT SPECTROSCOPY FOR REMOTE LASER 
DIAGNOSTICS OF NATURAL WATER QUALITY 
Alexander Dudelzak 
MPB Technologies Inc. 
1725 Noth Service Road/Trans-Canada Highway 
Dorval, Quebec H9P 1J1 
Sergey M. Babichenko, Larissa V. Poryvkina 
Institute for Ecological and Marine Research 
Estonian Academy of Sciences 
1 Paldiski Road, 200031 Tallinn, Estonia, USSR 
ABSTRACT 
The Total Luminescent Spectroscopy (TLS) approach modified for laser remote water quality estimation is 
developed. Two-dimensional TLS-signatures can serve as representative indicators of both water statistically 
"normal" state and departures of it. It is shown how, with the aid of laboratory catalohs of signatures for 
important pollutants, it is possible to detect oils in water at levels substantially below those of spills (of a few 
pl/1), and to identify groups of pollutants against a background of natural suspended matter fluorescence. 
A tunable laser remote spectrometer developed by the authors for marine research is described. 
230 300 330 400 490 300 SAG 
O-nSSiON WAVgLENCtH. nm 
Fig.l. TLS-signatures of natural waters from 
different aquatoria (remote mode) and of oil 
dissolved in bi-distilled water (laboratory catalog): 
a) pure aquatorium near Lahemaa National Park 
(Estonia); 
b) Siberian crude oil P-01 in bi-distilled water, 
concentration 5p/l; 
c) polluted area in the Finnish Gulf. 
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